Colorado Springs, Colorado

Colorado Springs, Colorado38.8339, -104.8214from your postcode

Mowing

When you can next cut it, and the best slot this weekend.

Best weekend slot

Saturday 10am–7pm

Verdict: Prime time

wind light — 21 km/h

Next mow

Today 11am–7pm

Verdict: Prime time

no rain since Wednesday, ground firm

  • Warning: Frost about. Wednesday 28 October has frosted hours. Stay off it until it lifts — walking on frosted grass bruises it, and mowing it ruptures the leaf. More

The next 10 days

Each row is a day, morning on the left. The more solid a block, the more of the forecast runs agree you can mow. Open a day for the hour-by-hour forecast behind it.

  1. Monday 19 October: 8 hours worth using. 11am–7pm — no rain since Wednesday, ground firm
    Monday 19 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictAlready goneAlready goneAlready goneAlready goneAlready goneAlready gonePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance······——————————
    Rainmm······——————————
    Grass······drydrydrydrydrydrydrydrydrydry
    Ground······firmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp······18°19°20°20°21°20°20°17°15°13°
    Windkm/h······1414171819211915108
    Daylight······✓✓✓✓✓✓✓✓——

    Growth: growing steadily (growth potential 0.44). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Monday 19 October · 11am–7pmConfident

    11am–7pm — no rain since Wednesday, ground firm

    Limiting factor:none

  2. Tuesday 20 October: 11 hours worth using. 8am–7pm — temperature — 11°C
    Tuesday 20 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkPrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm————————————————
    Grassdrydrydrydrydrydrydrydrydrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp7°6°6°8°11°14°17°19°21°20°20°19°19°17°14°12°
    Windkm/h582666668732011898
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: growing slowly (growth potential 0.31). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Tuesday 20 October · 8am–7pmConfident

    8am–7pm — temperature — 11°C

    Limiting factor:temperature

  3. Wednesday 21 October: 11 hours worth using. 8am–7pm — dry since Wednesday by then, ground firm
    Wednesday 21 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkPrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm————————————————
    Grassdrydrydrydrydrydrydrydrydrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp11°12°13°13°16°17°19°20°21°22°22°22°21°20°19°19°
    Windkm/h10989559141720232523211915
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: growing steadily (growth potential 0.45). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Wednesday 21 October · 8am–7pmConfident

    8am–7pm — dry since Wednesday by then, ground firm

    Limiting factor:none

  4. Thursday 22 October: 10 hours worth using. 8am–1pm — dry for over a week by then, ground firm
    Thursday 22 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkPrime timePrime timePrime timePrime timePrime time0.2mm of rain fallingPrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm————————0.2———————
    Grassdrydrydrydrydrydrydrydrydrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp15°15°15°16°17°20°20°20°18°18°20°22°21°19°18°18°
    Windkm/h7888671312107314242096
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: growing well (growth potential 0.66). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Thursday 22 October · best slot8am–1pmConfident

    8am–1pm — dry for over a week by then, ground firm

    Also mowable today: 2pm–7pm

    Limiting factor:none

  5. Friday 23 October: 9 hours worth using. 10am–7pm — rain earlier that day, ground firm
    Friday 23 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkForget itForget itPrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm————————————————
    Grasssoakedsoakedsoakedsoakedsoakeddrydrydrydrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp14°14°14°14°16°18°19°21°22°22°22°22°21°20°18°18°
    Windkm/h354557142325252019161295
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: growing well (growth potential 0.65). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Friday 23 October · 10am–7pmReasonably confident

    10am–7pm — rain earlier that day, ground firm

    Limiting factor:none

  6. Saturday 24 October: 9 hours worth using. 10am–7pm — wind light — 21 km/h
    Saturday 24 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdarkdark0.1mm of rain falling0.1mm of rain fallingPrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm0.10.10.10.10.1———————————
    Grassdrydrydrydrydrydrydrydrydrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp11°11°11°11°11°12°13°14°13°12°12°11°10°10°9°9°
    Windkm/h21252627262523212121202121201916
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: growing slowly (growth potential 0.34). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Saturday 24 October · 10am–7pmReasonably confident

    10am–7pm — wind light — 21 km/h

    Limiting factor:wind

  7. Sunday 25 October: 9 hours worth using. 10am–7pm — temperature — 11°C
    Sunday 25 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkForget itForget itPrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm————————————————
    Grassdrydrydrydrydrydrydrydrydrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp7°7°7°7°8°9°11°12°12°12°12°12°11°11°11°10°
    Windkm/h87810111416181920202122211916
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.11). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Sunday 25 October · 10am–7pmReasonably confident

    10am–7pm — temperature — 11°C

    Limiting factor:temperature

  8. Monday 26 October: 11 hours worth using. 8am–7pm — temperature — 12°C
    Monday 26 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkPrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm————————————————
    Grassdrydrydrydrydrydrydrydrydrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp7°8°8°8°8°10°12°14°15°17°17°17°16°14°14°13°
    Windkm/h1125766789988845
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.16). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Monday 26 October · 8am–7pmReasonably confident

    8am–7pm — temperature — 12°C

    Limiting factor:temperature

  9. Tuesday 27 October: 11 hours worth using. 8am–7pm — temperature — 10°C
    Tuesday 27 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkPrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timePrime timedarkdark
    Rainchance————————————————
    Rainmm————————————————
    Grassdrydrydrydrydrydrydrydrydrydrydrydrydrydrydrydry
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp6°6°5°5°6°7°8°9°10°11°11°11°10°9°8°6°
    Windkm/h211918171612991113151616151310
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.11). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Tuesday 27 October · 8am–7pmLow confidence this far out

    8am–7pm — temperature — 10°C

    Limiting factor:temperature

  10. Wednesday 28 October: nothing to cut. Nothing to cut — the grass is barely growing (growth potential 0.02). Conditions themselves are fine.
    Wednesday 28 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingAlready goneAlready goneAlready gone
    Rainchance—————————————···
    Rainmm—————————————···
    Grassdrydrydrydrydrydrydrydrydrydrydrydrydry···
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm···
    Temp1°1°1°1°3°4°7°9°10°12°13°12°11°···
    Windkm/h129777810111212111010···
    Daylight———✓✓✓✓✓✓✓✓✓✓···

    Growth: barely growing (growth potential 0.02). Not enough to be worth cutting, which is why no hour is recommended today whatever the weather does.

    Wednesday 28 OctoberLow confidence this far out

    Nothing to cut — the grass is barely growing (growth potential 0.02). Conditions themselves are fine.

    Nothing to cut. The odds below describe the weather only — growth decides whether a cut is wanted, and it is judged separately.

    Limiting factor:growth

good to go touch and go dark, frost or snow already goneFainter means fewer forecast runs agree.

How you feel about mowing

Sensible middle ground.

Petrol or battery. The baseline.

Growth

How fast it is growing, and when it will need cutting again.

44%Growing steadily

Of the fastest this grass could grow. The turf-industry measure, from today's temperature and day length.

Growing slowly — roughly 1.6mm a day. It will not put on enough to need cutting within the next 10 days.

Held back by both temperature and short days — 11.0 hours of daylight at 14°C.

Over the next 10 days
about 11mm of leaf
Next cut due
not within the next ten days

This only knows temperature and day length. Feeding, watering, shade and cutting height all move it, so treat it as a rough guide.

Worked out from the PACE Turf growth potential model and day length —how and why.

Seeding

Soil temperature at germination depth, and when the window opens.

Soil temperature in Colorado Springs, Colorado

60°F15.3°C

at 6cm — germination depth

Seeding conditions are open — soil is 15.3°C at 6cm and holding above 12.5°C.

Warming over the next 10 days.

An independent estimate from air temperature gives 12.4°C, 1.8°C away. Treat the figure as approximate.

Most cool-season lawns in the northern US and Canada are bluegrass, tall fescue, or a mix of the two. We assume that, and use 12.5°C as the seeding threshold.

Thresholds for every species

The differences are small. Ryegrass is the quickest off the mark; bluegrass is the slowest and wants the warmest soil. Everything else sits between.

Soil temperature at 6cm for reliable germination. Sources onthe method page.
SpeciesSoil neededDays to sprout
Perennial ryegrass8°C5–10
Red / chewings fescue8–10°C10–14
Tall fescuelikely yours10–12°C10–14
Browntop bentColonial bentgrass10–12°C14–21
Smooth-stalked meadow grassKentucky bluegrasslikely yours12–13°C14–28

Feeding

Why timing decides whether a feed does anything at all.

Coming in the app

Grass takes up nitrogen when it is growing. Feed a lawn that has stopped and most of it washes past the roots — which is why timing beats product choice.

Right now this lawn is growing well enough to use a feed.

The app will work out the actual feeding windows for your lawn — along with weed control, scarifying and moss treatment — and tell you when they open without you having to check.

Why timing beats product choice

Colorado Springs, Colorado in detail

Soil temperature in Colorado Springs, Colorado is currently 15.3°C at 6cm, and rising about 3.2°C over the next 10 days. That depth matters because it is where grass seed sits and where roots start working, and it lags air temperature by days — which is why a warm afternoon here tells you very little on its own.

Lawns in this area are typically Kentucky bluegrass with tall fescue, the usual mix for cool-season lawns at this latitude. That blend needs the soil to hold above 12.5°C before seed germinates reliably. Seeding conditions are open — soil is 15.3°C at 6cm and holding above 12.5°C.

9 of the next 10 days are good mowing days. The best weekend slot right now is Saturday 10am–7pm, on the basis that wind light — 21 km/h.

The next recommended window in Colorado Springs opens at 11am on Monday 19 October, and holds while conditions stay put. Underfoot, the ground reads as firm after 4mm rain over the last week, coarse (sandy) soil.

There is frost in the forecast for Colorado Springs, Colorado: Wednesday 28 October has hours cold enough to freeze the leaf. Stay off the grass until it lifts — mowing frosted turf ruptures the cells and the damage shows for weeks.

One email when the app is ready, and nothing else. Unsubscribe in one click. See the privacy notice.

Save this lawn and we will email you when the windows open.

We use your address for your account and nothing else. See the privacy notice.

We already send you the forecast email? Use the same address.

Single-model forecast here — no ensemble covers this location, so there are no odds to show. Forecast from Open-Meteo, refreshed through the day. Soil temperature is modelled, not measured — how that works and where the thresholds come from.