Hourly Weather Forecast - Alliston, Ontario, CA

12 AM
28°F
70%
14mph
W
70% Chance Snow Showers
Humidity
79%
Feels like
16°F
Dew Point
22°F
1 AM
26°F
70%
15mph
W
70% Chance of Flurries
Humidity
75%
Feels like
14°F
Dew Point
19°F
2 AM
24°F
70%
15mph
W
70% Chance Snow Showers
Humidity
74%
Feels like
12°F
Dew Point
17°F
3 AM
22°F
0%
14mph
WNW
Mostly Cloudy
Humidity
73%
Feels like
9°F
Dew Point
15°F
4 AM
21°F
0%
13mph
W
Partly Cloudy
Humidity
73%
Feels like
8°F
Dew Point
13°F
5 AM
20°F
0%
13mph
W
Partly Cloudy
Humidity
73%
Feels like
7°F
Dew Point
13°F
6 AM
20°F
0%
13mph
W
Partly Cloudy
Humidity
73%
Feels like
7°F
Dew Point
13°F
7 AM
20°F
0%
12mph
W
Partly Cloudy
Humidity
73%
Feels like
8°F
Dew Point
13°F
7:51 AM
8 AM
21°F
10%
13mph
W
Partly Cloudy
Humidity
74%
Feels like
8°F
Dew Point
14°F
9 AM
21°F
30%
13mph
W
30% Chance Snow Showers
Humidity
75%
Feels like
8°F
Dew Point
14°F
10 AM
21°F
30%
13mph
W
30% Chance of Snow
Humidity
75%
Feels like
9°F
Dew Point
15°F
11 AM
21°F
30%
13mph
WNW
30% Chance of Heavy Snow
Humidity
76%
Feels like
9°F
Dew Point
15°F
12 PM
21°F
30%
13mph
WNW
30% Chance of Snow
Humidity
76%
Feels like
9°F
Dew Point
15°F
1 PM
21°F
10%
12mph
WNW
Mostly Cloudy
Humidity
76%
Feels like
8°F
Dew Point
15°F
2 PM
20°F
10%
12mph
NW
Mostly Cloudy
Humidity
76%
Feels like
8°F
Dew Point
14°F
3 PM
20°F
10%
11mph
WNW
Mostly Cloudy
Humidity
76%
Feels like
8°F
Dew Point
14°F
4 PM
19°F
10%
11mph
WNW
Partly Cloudy
Humidity
76%
Feels like
8°F
Dew Point
13°F
4:43 PM
5 PM
19°F
10%
10mph
WNW
Partly Cloudy
Humidity
76%
Feels like
8°F
Dew Point
13°F
6 PM
19°F
10%
9mph
WNW
Mostly Clear
Humidity
76%
Feels like
9°F
Dew Point
13°F
7 PM
19°F
10%
8mph
WNW
Mostly Clear
Humidity
77%
Feels like
9°F
Dew Point
13°F
8 PM
20°F
10%
6mph
WNW
Mostly Clear
Humidity
78%
Feels like
11°F
Dew Point
14°F
9 PM
20°F
10%
5mph
W
Partly Cloudy
Humidity
78%
Feels like
12°F
Dew Point
14°F
10 PM
20°F
10%
4mph
W
Partly Cloudy
Humidity
80%
Feels like
13°F
Dew Point
14°F
11 PM
19°F
0%
4mph
WSW
Partly Cloudy
Humidity
82%
Feels like
13°F
Dew Point
15°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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