Hourly Weather Forecast - Nepean, Ontario, CA

12 AM
24°F
50%
12mph
S
50% Chance of Snow
Humidity
90%
Feels like
13°F
Dew Point
21°F
1 AM
24°F
50%
12mph
SSW
50% Chance of Flurries
Humidity
90%
Feels like
13°F
Dew Point
22°F
2 AM
25°F
50%
11mph
SSW
50% Chance of Flurries
Humidity
92%
Feels like
14°F
Dew Point
23°F
3 AM
26°F
50%
11mph
SSW
50% Chance of Flurries
Humidity
95%
Feels like
16°F
Dew Point
25°F
4 AM
26°F
40%
11mph
SW
40% Chance of Flurries
Humidity
96%
Feels like
16°F
Dew Point
25°F
5 AM
26°F
40%
11mph
SW
40% Chance of Flurries
Humidity
96%
Feels like
16°F
Dew Point
25°F
6 AM
27°F
30%
11mph
SW
30% Chance Frozen Mix
Humidity
88%
Feels like
17°F
Dew Point
24°F
7 AM
27°F
20%
12mph
SW
Cloudy
Humidity
81%
Feels like
17°F
Dew Point
22°F
7:39 AM
8 AM
28°F
10%
13mph
WSW
Mostly Cloudy
Humidity
77%
Feels like
17°F
Dew Point
21°F
9 AM
27°F
10%
15mph
WSW
Mostly Cloudy
Humidity
79%
Feels like
16°F
Dew Point
22°F
10 AM
28°F
20%
16mph
W
Partly Cloudy
Humidity
77%
Feels like
15°F
Dew Point
21°F
11 AM
28°F
30%
17mph
W
30% Chance Snow Showers
Humidity
76%
Feels like
16°F
Dew Point
22°F
12 PM
29°F
30%
17mph
W
30% Chance Snow Showers
Humidity
73%
Feels like
17°F
Dew Point
22°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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