Hourly Weather Forecast - Alliston, Ontario, CA

10 AM
5°F
30%
5mph
NNW
30% Chance of Heavy Snow
Humidity
82%
Feels like
-5°F
Dew Point
1°F
11 AM
6°F
30%
6mph
NNW
30% Chance of Heavy Snow
Humidity
79%
Feels like
-4°F
Dew Point
1°F
12 PM
8°F
30%
6mph
NNW
30% Chance of Snow
Humidity
77%
Feels like
-3°F
Dew Point
2°F
1 PM
8°F
30%
7mph
NNW
30% Chance Snow Showers
Humidity
76%
Feels like
-3°F
Dew Point
2°F
2 PM
8°F
0%
7mph
NNW
Partly Cloudy
Humidity
77%
Feels like
-4°F
Dew Point
2°F
3 PM
8°F
0%
8mph
NNW
Partly Cloudy
Humidity
80%
Feels like
-5°F
Dew Point
3°F
4 PM
7°F
0%
8mph
NNW
Partly Cloudy
Humidity
82%
Feels like
-5°F
Dew Point
3°F
4:41 PM
5 PM
7°F
10%
8mph
NNW
Mostly Cloudy
Humidity
88%
Feels like
-5°F
Dew Point
4°F
6 PM
8°F
10%
8mph
NW
Mostly Cloudy
Humidity
90%
Feels like
-4°F
Dew Point
5°F
7 PM
8°F
10%
7mph
NW
Mostly Cloudy
Humidity
92%
Feels like
-4°F
Dew Point
6°F
8 PM
9°F
30%
6mph
NW
30% Chance Snow Showers
Humidity
94%
Feels like
-2°F
Dew Point
7°F
9 PM
9°F
30%
5mph
NW
30 % Chance of Heavy Snow
Humidity
93%
Feels like
0°F
Dew Point
7°F
10 PM
9°F
30%
4mph
WNW
30 % Chance of Heavy Snow
Humidity
93%
Feels like
1°F
Dew Point
7°F
11 PM
8°F
30%
4mph
WNW
30% Chance of Snow
Humidity
99%
Feels like
1°F
Dew Point
8°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Sunday Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

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