Hourly Weather Forecast - Ajax, Ontario, CA

12 AM
18°F
0%
8mph
WSW
Partly Cloudy
Humidity
74%
Feels like
8°F
Dew Point
11°F
1 AM
17°F
0%
7mph
WSW
Mostly Cloudy
Humidity
76%
Feels like
7°F
Dew Point
11°F
2 AM
16°F
0%
7mph
WSW
Partly Cloudy
Humidity
80%
Feels like
6°F
Dew Point
11°F
3 AM
15°F
0%
6mph
WSW
Partly Cloudy
Humidity
85%
Feels like
6°F
Dew Point
11°F
4 AM
14°F
0%
6mph
W
Partly Cloudy
Humidity
89%
Feels like
5°F
Dew Point
11°F
5 AM
13°F
0%
5mph
WSW
Partly Cloudy
Humidity
94%
Feels like
5°F
Dew Point
12°F
6 AM
13°F
0%
5mph
WSW
Partly Cloudy
Humidity
94%
Feels like
5°F
Dew Point
12°F
7 AM
15°F
0%
5mph
WSW
Partly Cloudy
Humidity
88%
Feels like
7°F
Dew Point
12°F
7:43 AM
8 AM
17°F
0%
5mph
WSW
Partly Cloudy
Humidity
81%
Feels like
9°F
Dew Point
12°F
9 AM
20°F
0%
5mph
WSW
Partly Cloudy
Humidity
77%
Feels like
13°F
Dew Point
14°F
10 AM
23°F
0%
6mph
WSW
Partly Cloudy
Humidity
75%
Feels like
15°F
Dew Point
16°F
11 AM
26°F
0%
7mph
SW
Partly Cloudy
Humidity
72%
Feels like
17°F
Dew Point
18°F
12 PM
28°F
0%
9mph
SW
Mostly Cloudy
Humidity
69%
Feels like
19°F
Dew Point
19°F
1 PM
29°F
0%
11mph
SW
Cloudy
Humidity
69%
Feels like
19°F
Dew Point
20°F
2 PM
29°F
0%
12mph
SW
Cloudy
Humidity
72%
Feels like
20°F
Dew Point
22°F
3 PM
30°F
0%
12mph
SW
Cloudy
Humidity
74%
Feels like
20°F
Dew Point
23°F
4 PM
31°F
0%
13mph
SW
Cloudy
Humidity
75%
Feels like
21°F
Dew Point
24°F
4:39 PM
5 PM
31°F
0%
13mph
SW
Mostly Cloudy
Humidity
75%
Feels like
21°F
Dew Point
24°F
6 PM
31°F
0%
14mph
SW
Partly Cloudy
Humidity
77%
Feels like
21°F
Dew Point
25°F
7 PM
31°F
0%
14mph
SW
Partly Cloudy
Humidity
77%
Feels like
21°F
Dew Point
25°F
8 PM
31°F
0%
15mph
SW
Partly Cloudy
Humidity
79%
Feels like
21°F
Dew Point
26°F
9 PM
33°F
0%
15mph
SW
Mostly Cloudy
Humidity
79%
Feels like
22°F
Dew Point
27°F
10 PM
33°F
0%
15mph
SW
Cloudy
Humidity
79%
Feels like
23°F
Dew Point
27°F
11 PM
34°F
0%
16mph
SW
Cloudy
Humidity
79%
Feels like
24°F
Dew Point
28°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's 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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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