Hourly Weather Forecast - Highland Grove, Ontario, CA

12 AM
13°F
20%
1mph
SSW
Cloudy
Humidity
96%
Feels like
13°F
Dew Point
12°F
1 AM
14°F
30%
2mph
SSW
30% Chance of Flurries
Humidity
94%
Feels like
14°F
Dew Point
13°F
2 AM
15°F
30%
2mph
SSW
30% Chance of Snow
Humidity
93%
Feels like
15°F
Dew Point
14°F
3 AM
17°F
30%
2mph
S
30% Chance of Snow
Humidity
93%
Feels like
17°F
Dew Point
15°F
4 AM
18°F
30%
2mph
S
30 % Chance of Heavy Snow
Humidity
92%
Feels like
18°F
Dew Point
16°F
5 AM
19°F
30%
3mph
S
30 % Chance of Heavy Snow
Humidity
92%
Feels like
19°F
Dew Point
17°F
6 AM
20°F
30%
3mph
S
30 % Chance of Heavy Snow
Humidity
93%
Feels like
15°F
Dew Point
18°F
7 AM
20°F
30%
4mph
S
30 % Chance of Heavy Snow
Humidity
93%
Feels like
15°F
Dew Point
19°F
7:48 AM
8 AM
21°F
30%
4mph
S
30% Chance of Heavy Snow
Humidity
93%
Feels like
16°F
Dew Point
20°F
9 AM
23°F
30%
4mph
S
30% Chance of Heavy Snow
Humidity
94%
Feels like
17°F
Dew Point
21°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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