Soil temperature in Sherbrooke, Quebec
Soil temperature
19.1°C66°F
at 6cm — germination depth
Cooling over the next 11 days.
Seeding conditions are open — soil is 19.1°C at 6cm and holding above 12.5°C.
Most cool-season lawns in the northern US and Canada are bluegrass, tall fescue, or a mix of the two. We assume that, and use12.5°C as the seeding threshold.
I know what grass I have
The differences are small. Ryegrass is the quickest off the mark; bluegrass is the slowest and wants the warmest soil. Everything else sits between.
| Species | Soil temp | Days |
|---|---|---|
| Perennial ryegrass | 8°C | 5–10 |
| Red / chewings fescue | 8–10°C | 10–14 |
| Tall fescuelikely yours | 10–12°C | 10–14 |
| Browntop bentColonial bentgrass | 10–12°C | 14–21 |
| Smooth-stalked meadow grassKentucky bluegrasslikely yours | 12–13°C | 14–28 |
Soil temperature at 6cm in Sherbrooke, Quebec is currently 19.1°C, and falling about 15.8°C over the next 11 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 19.1°C at 6cm and holding above 12.5°C.
7 of the next 10 days are good mowing days. The best weekend slot right now is Sunday 10am–8pm, on the basis that grass dry — rain earlier today.
The next recommended window in Sherbrooke opens at 8am on Wednesday 2 September, because anything earlier is the hour your neighbours will remember. Underfoot, the ground reads as firm after 1mm rain over the last week.
There is frost in the forecast for Sherbrooke, Quebec: Wednesday 9 September 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.
The next 10 days
Column height is how mowable the day is; the lighter band is the best stretch within it. The line is soil temperature at 6cm. It crosses the seeding threshold inside this forecast.
12.5°C — seeding
Soil at 6cm 18.1°C cooling to 0.0°C
Tuesday 1 September: Not worth it. No — nothing quite good enough today.
Tuesday 1 SeptemberConfident
No — nothing quite good enough today.
- Good:Grass wetness
- Grass dryno rain since Sunday
- Good:Ground firmness
- Ground firm1mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.70
- Good:Temperature
- Temperature19°C
- Good:Wind
- Wind light4 km/h
Limiting factor:none
Wednesday 2 September: Good. 8am–8pm — no rain since Sunday, ground firm
Wednesday 2 September · 8am–8pmConfident
8am–8pm — no rain since Sunday, ground firm
- Good:Grass wetness
- Grass dryno rain since Sunday
- Good:Ground firmness
- Ground firm1mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.98
- Good:Temperature
- Temperature13°C
- Good:Wind
- Wind light7 km/h
- Sociable hours
- A bit early or late, but finestarts when it stops being antisocial
Limiting factor:none
Thursday 3 September: Good. 3pm–6pm — grass dry — dried off since a shower 2 hours ago
Thursday 3 September · 3pm–6pmConfident
3pm–6pm — grass dry — dried off since a shower 2 hours ago
- Poor:Grass wetness
- Grass drydried off since a shower 2 hours ago
- Good:Ground firmness
- Ground firm1mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.95
- Good:Temperature
- Temperature15°C
- Good:Wind
- Wind light14 km/h
- Sociable hours
- Fine by the neighboursstarts once the rain has passed
Limiting factor:grass wetness
Friday 4 September: Good. 2pm–4pm — dried off since a shower 1 hour ago, ground firm
Friday 4 September · 2pm–4pmConfident
2pm–4pm — dried off since a shower 1 hour ago, ground firm
- Marginal:Grass wetness
- Grass drydried off since a shower 0 hours ago
- Good:Ground firmness
- Ground firm22mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.86
- Good:Temperature
- Temperature14°C
- Good:Wind
- Wind light5 km/h
- Sociable hours
- Fine by the neighboursstarts once the rain has passed
Limiting factor:none
Saturday 5 September: Good. No — 0.1mm of rain falling.
Saturday 5 SeptemberReasonably confident
No — 0.1mm of rain falling.
- Poor:Grass wetness
- Grass wetrain 4 hours ago
- Good:Ground firmness
- Ground firm24mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.55
- Good:Temperature
- Temperature14°C
- Good:Wind
- Wind light11 km/h
Limiting factor:grass wetness
Sunday 6 September: Good. 10am–8pm — grass dry — rain earlier today
Sunday 6 September · 10am–8pmReasonably confident
10am–8pm — grass dry — rain earlier today
- Good:Grass wetness
- Grass dryrain earlier today
- Good:Ground firmness
- Ground firm26mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.53
- Good:Temperature
- Temperature12°C
- Good:Wind
- Wind light4 km/h
- Sociable hours
- Fine by the neighboursstarts once the dew has burnt off
Limiting factor:grass wetness
Monday 7 September: Good. 9am–8pm — grass dry — no rain since Saturday
Monday 7 September · 9am–8pmReasonably confident
9am–8pm — grass dry — no rain since Saturday
- Good:Grass wetness
- Grass dryno rain since Saturday
- Good:Ground firmness
- Ground firm25mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.65
- Good:Temperature
- Temperature10°C
- Good:Wind
- Wind light5 km/h
- Sociable hours
- A bit early or late, but finestarts once the dew has burnt off
Limiting factor:grass wetness
Tuesday 8 September: Good. 5pm–8pm — rain earlier today, ground firm
Tuesday 8 September · 5pm–8pmReasonably confident
5pm–8pm — rain earlier today, ground firm
- Poor:Grass wetness
- Grass dryrain earlier today
- Good:Ground firmness
- Ground firm25mm rain over the last week
- Good:Growth
- Growing steadilygrowth potential 0.43
- Good:Temperature
- Temperature15°C
- Good:Wind
- Wind light4 km/h
- Sociable hours
- A bit early or late, but finestarts once the dew has burnt off
Limiting factor:none
Wednesday 9 September: Not worth it. No — ground frozen.
Wednesday 9 SeptemberLow confidence this far out
No — ground frozen.
- Good:Grass wetness
- Grass dryrain earlier today
- Good:Ground firmness
- Ground firm27mm rain over the last week
- Poor:Growth
- Barely growinggrowth potential 0.13
- Good:Temperature
- Temperature10°C
- Good:Wind
- Wind light2 km/h
Limiting factor:growth
Thursday 10 September: Not worth it. No — ground frozen.
Thursday 10 SeptemberLow confidence this far out
No — ground frozen.
- Poor:Grass wetness
- Grass wetraining now
- Marginal:Ground firmness
- Ground soft in places27mm rain over the last week
- Poor:Growth
- Barely growinggrowth potential 0.17
- Good:Temperature
- Temperature10°C
- Good:Wind
- Wind light7 km/h
Limiting factor:grass wetness
Nearby
Your own postcode
These are town-centre figures. Yours will differ a little.