Hourly Weather Forecast - Alliston, Ontario, CA

7 PM
26°F
30%
9mph
SW
30 % Chance of Heavy Snow
Humidity
90%
Feels like
17°F
Dew Point
23°F
8 PM
27°F
10%
8mph
SW
Mostly Cloudy
Humidity
90%
Feels like
18°F
Dew Point
24°F
9 PM
27°F
30%
8mph
SW
30% Chance of Snow
Humidity
91%
Feels like
18°F
Dew Point
24°F
10 PM
27°F
0%
8mph
SW
Cloudy
Humidity
92%
Feels like
19°F
Dew Point
25°F
11 PM
27°F
30%
7mph
SW
30% Chance of Snow
Humidity
93%
Feels like
19°F
Dew Point
25°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Outdoor Sports Guide