Hourly Weather Forecast - Mattawa, Ontario, CA

3 PM
24°F
10%
8mph
NW
Partly Cloudy
Humidity
72%
Feels like
15°F
Dew Point
16°F
4 PM
22°F
0%
6mph
WNW
Partly Cloudy
Humidity
72%
Feels like
14°F
Dew Point
15°F
4:29 PM
5 PM
20°F
0%
4mph
WNW
Mostly Clear
Humidity
74%
Feels like
14°F
Dew Point
13°F
6 PM
19°F
0%
3mph
W
Mostly Clear
Humidity
77%
Feels like
14°F
Dew Point
13°F
7 PM
17°F
0%
2mph
WSW
Mostly Clear
Humidity
79%
Feels like
17°F
Dew Point
12°F
8 PM
16°F
0%
2mph
SW
Mostly Clear
Humidity
80%
Feels like
16°F
Dew Point
11°F
9 PM
15°F
0%
2mph
S
Mostly Clear
Humidity
81%
Feels like
15°F
Dew Point
10°F
10 PM
15°F
0%
2mph
S
Mostly Clear
Humidity
81%
Feels like
15°F
Dew Point
10°F
11 PM
15°F
0%
3mph
SSE
Mostly Clear
Humidity
82%
Feels like
10°F
Dew Point
10°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

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

Wednesday'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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