Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.
Gusty winds and low relative humidity will bring critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >
Hazardous Weather Conditions
Current conditions at
Berkeley Lab (LBNL1)
Lat: 37.8771°NLon: 122.2486°WElev: 888.0ft.NA
42°F
6°C
| Humidity | 71% |
| Wind Speed | NW 5 MPH |
| Barometer | NA |
| Dewpoint | 33°F (1°C) |
| Visibility | NA |
| Wind Chill | 39°F (4°C) |
| Last update | 19 Feb 11:15 PM PST |
Extended Forecast for
Hercules CA
Extreme Cold Warning February 20, 01:00am until February 20, 09:00am
Tonight
Low: 38 °F
Mostly Clear
Friday
High: 51 °F
Mostly Sunny
Friday Night
Low: 39 °F
Increasing
CloudsSaturday
High: 56 °F
Partly Sunny
then Slight
Chance RainSaturday Night
Low: 49 °F
Chance Rain
Sunday
High: 61 °F
Chance Rain
Sunday Night
Low: 52 °F
Chance Rain
Monday
High: 63 °F
Rain Likely
Monday Night
Low: 56 °F
Rain
Detailed Forecast
Tonight
Mostly clear, with a low around 38. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Friday
Mostly sunny, with a high near 51. Northeast wind around 6 mph.
Friday Night
Increasing clouds, with a low around 39. East wind 5 to 7 mph.
Saturday
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 56. East wind 8 to 13 mph becoming south southeast in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 49. South southeast wind around 14 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 50 percent chance of rain. Partly sunny, with a high near 61. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 52.
Monday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 63.
Monday Night
Rain. Cloudy, with a low around 56.
Tuesday
Rain. Cloudy, with a high near 59.
Tuesday Night
Rain likely. Cloudy, with a low around 52.
Wednesday
Rain likely. Mostly cloudy, with a high near 61.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 51.
Thursday
A chance of rain. Mostly sunny, with a high near 62.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Hercules CA
38.02°N 122.27°W (Elev. 92 ft)
38.02°N 122.27°W (Elev. 92 ft)
8:22 pm PST Feb 19, 2026
11pm PST Feb 19, 2026-6pm PST Feb 26, 2026
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