Hourly Weather Forecast - Portola, CA

12 AM
32°F
0%
2mph
WSW
Partly Cloudy
Humidity
71%
Feels like
32°F
Dew Point
24°F
1 AM
32°F
0%
2mph
SW
Mostly Clear
Humidity
73%
Feels like
32°F
Dew Point
24°F
2 AM
32°F
0%
2mph
SSW
Partly Cloudy
Humidity
75%
Feels like
32°F
Dew Point
25°F
3 AM
32°F
0%
2mph
SW
Partly Cloudy
Humidity
78%
Feels like
32°F
Dew Point
26°F
4 AM
32°F
10%
2mph
SW
Partly Cloudy
Humidity
81%
Feels like
32°F
Dew Point
26°F
5 AM
32°F
10%
2mph
SW
Partly Cloudy
Humidity
81%
Feels like
32°F
Dew Point
27°F
6 AM
33°F
20%
2mph
WSW
Partly Cloudy
Humidity
84%
Feels like
33°F
Dew Point
28°F
7 AM
34°F
20%
2mph
SW
Mostly Cloudy
Humidity
83%
Feels like
34°F
Dew Point
30°F
7:16 AM
8 AM
38°F
10%
2mph
SW
Mostly Cloudy
Humidity
79%
Feels like
38°F
Dew Point
32°F
9 AM
43°F
10%
3mph
SW
Mostly Cloudy
Humidity
72%
Feels like
43°F
Dew Point
34°F
10 AM
48°F
30%
3mph
SSW
30% Chance Rain Showers
Humidity
66%
Feels like
47°F
Dew Point
37°F
11 AM
52°F
30%
3mph
SW
30% Chance Rain Showers
Humidity
61%
Feels like
52°F
Dew Point
40°F
12 PM
56°F
20%
5mph
WSW
Mostly Cloudy
Humidity
57%
Feels like
56°F
Dew Point
41°F
1 PM
58°F
40%
6mph
WSW
40% Chance Rain Showers
Humidity
55%
Feels like
58°F
Dew Point
42°F
2 PM
59°F
40%
6mph
WSW
40% Chance Rain Showers
Humidity
56%
Feels like
59°F
Dew Point
43°F
3 PM
55°F
40%
6mph
WSW
40% Chance of Light Rain
Humidity
63%
Feels like
55°F
Dew Point
43°F
4 PM
50°F
30%
6mph
WSW
30% Chance of Light Rain
Humidity
76%
Feels like
47°F
Dew Point
42°F
4:38 PM
5 PM
44°F
30%
6mph
WSW
30% Chance of Light Rain
Humidity
92%
Feels like
41°F
Dew Point
42°F
6 PM
41°F
30%
7mph
SW
30% Chance Rain Showers
Humidity
100%
Feels like
37°F
Dew Point
41°F
7 PM
40°F
30%
7mph
SW
30% Chance Rain Showers
Humidity
100%
Feels like
35°F
Dew Point
40°F
8 PM
39°F
30%
8mph
SW
30% Chance Rain Showers
Humidity
100%
Feels like
34°F
Dew Point
39°F
9 PM
39°F
30%
9mph
WSW
30% Chance of Light Rain
Humidity
100%
Feels like
33°F
Dew Point
39°F
10 PM
39°F
30%
9mph
WSW
30% Chance of Light Rain
Humidity
100%
Feels like
33°F
Dew Point
39°F
11 PM
39°F
40%
10mph
WSW
40% Chance of Light Rain
Humidity
100%
Feels like
33°F
Dew Point
39°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

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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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