Alliston
New Tecumseth, Simcoe County, Ontario, Canada
Current Weather
11°51°
Clear
Feels Like: 10°50°
Min: 1°33°
Max: 16°61°
The next few hours will be clear, with tomorrow reaching 18°C and dropping to 10°C. The coming days will be drizzle
Hourly Forecast
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Air Quality
Air quality is acceptable. However, there may be a risk for some people.
Daylight Hours
07:54
Sunrise
18:12
Sunset
Moon
17:18
Moonrise
05:55
Moonset
Daily Forecast
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View stargazing scoreWeather in Alliston tomorrow, October 25, 2026
Alliston could see fog on October 25, 2026, so early travel may need extra care. Visibility is the main watchpoint while the air stays still. Cloud leads the morning, peaking close to 100% near 05:00. Sunshine has little room until later in the day.Alliston could see fog on October 25, 2026, so early travel may need extra care. Visibility is the main watchpoint while the air stays still. Cloud leads the morning, peaking close to 100% near 05:00. Sunshine has little room until later in the day.
The day peaks near 18°C and cools toward 1°C. Moisture in the air spans 51%-100%, with the highest values around 03:00. Winds stay light, near 9 km/h by 01:00, so the day feels still more than breezy.The day peaks near 64°F and cools toward 34°F. Moisture in the air spans 51%-100%, with the highest values around 03:00. Winds stay light, near 5 mph by 01:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 83% around 17:00. Outdoor plans may still want a flexible backup. Expect visibility near 10.8 km, with poorer spells close to 0.1 km. The sun rises at 07:55 and sets at 18:10, for a total of 10 hours 15 minutes of sunlight today.The afternoon keeps an overcast feel, as cloud reaches about 83% around 17:00. Outdoor plans may still want a flexible backup. Expect visibility near 6.7 mi, with poorer spells close to 0.1 mi. The sun rises at 07:55 and sets at 18:10, for a total of 10 hours 15 minutes of sunlight today.
Taken together, murky spells in Alliston on October 25, 2026 favour slower morning movement before any clearer air arrives.Taken together, murky spells in Alliston on October 25, 2026 favour slower morning movement before any clearer air arrives.
Frequently asked questions about weather in Alliston
How warm does it get in Alliston?
The warmest month in Alliston is July, with average high temperatures of 27°C. The average temperature during this period is around 21°C.The warmest month in Alliston is July, with average high temperatures of 80°F. The average temperature during this period is around 70°F.
How cold does it get in Alliston?
The coldest month in Alliston is January, with average low temperatures of -9°C. The average temperature during this period is around -6°C.The coldest month in Alliston is January, with average low temperatures of 15°F. The average temperature during this period is around 22°F.
What is the wettest time of year in Alliston?
The wettest month in Alliston is April, with an average of 93 mm of precipitation.The wettest month in Alliston is April, with an average of 3.7 in of precipitation.
What is the driest time of year in Alliston?
The driest month in Alliston is February, with an average of 61 mm of precipitation.The driest month in Alliston is February, with an average of 2.4 in of precipitation.