Hourly Weather Forecast - Plympton-Wyoming, Ontario, CA

12 AM
40°F
40%
14mph
SW
40% Chance of Light Rain
Humidity
94%
Feels like
33°F
Dew Point
39°F
1 AM
39°F
20%
13mph
WSW
Cloudy
Humidity
90%
Feels like
31°F
Dew Point
36°F
2 AM
38°F
20%
14mph
WSW
Cloudy
Humidity
83%
Feels like
30°F
Dew Point
33°F
3 AM
37°F
20%
14mph
WSW
Cloudy
Humidity
79%
Feels like
28°F
Dew Point
31°F
4 AM
35°F
10%
16mph
WSW
Cloudy
Humidity
73%
Feels like
26°F
Dew Point
28°F
5 AM
34°F
40%
17mph
WSW
40% Chance of Flurries
Humidity
71%
Feels like
23°F
Dew Point
26°F
6 AM
32°F
40%
19mph
WSW
40% Chance of Flurries
Humidity
71%
Feels like
20°F
Dew Point
23°F
7 AM
30°F
40%
20mph
WSW
40% Chance of Flurries
Humidity
78%
Feels like
17°F
Dew Point
24°F
7:55 AM
8 AM
28°F
30%
21mph
WSW
30% Chance of Flurries
Humidity
80%
Feels like
15°F
Dew Point
23°F
9 AM
29°F
20%
22mph
WSW
Windy
Humidity
82%
Feels like
15°F
Dew Point
24°F
10 AM
29°F
20%
22mph
W
Windy
Humidity
81%
Feels like
15°F
Dew Point
24°F
11 AM
29°F
30%
22mph
W
30% Chance Snow Showers
Humidity
83%
Feels like
15°F
Dew Point
24°F
12 PM
28°F
30%
22mph
W
30% Chance Frozen Mix
Humidity
77%
Feels like
14°F
Dew Point
22°F
1 PM
27°F
20%
23mph
W
Windy
Humidity
72%
Feels like
13°F
Dew Point
19°F
2 PM
26°F
10%
23mph
W
Windy
Humidity
67%
Feels like
11°F
Dew Point
16°F
3 PM
25°F
0%
22mph
W
Windy
Humidity
66%
Feels like
10°F
Dew Point
15°F
4 PM
24°F
0%
21mph
WNW
Windy
Humidity
68%
Feels like
9°F
Dew Point
15°F
4:55 PM
5 PM
23°F
0%
20mph
WNW
Mostly Cloudy
Humidity
68%
Feels like
9°F
Dew Point
14°F
6 PM
23°F
0%
19mph
WNW
Mostly Cloudy
Humidity
69%
Feels like
8°F
Dew Point
14°F
7 PM
22°F
0%
17mph
WNW
Partly Cloudy
Humidity
68%
Feels like
9°F
Dew Point
14°F
8 PM
22°F
0%
15mph
WNW
Partly Cloudy
Humidity
69%
Feels like
9°F
Dew Point
14°F
9 PM
22°F
0%
13mph
WNW
Partly Cloudy
Humidity
70%
Feels like
9°F
Dew Point
13°F
10 PM
22°F
0%
12mph
W
Partly Cloudy
Humidity
66%
Feels like
10°F
Dew Point
12°F
11 PM
22°F
0%
11mph
W
Partly Cloudy
Humidity
69%
Feels like
11°F
Dew Point
13°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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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