Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

Lat: 37.83389°NLon: 122.06694°WElev: 1760.0ft.

NA

52°F

11°C

Humidity 38%
Wind Speed NNW 0 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 17 Apr 10:28 PM PDT
Extended Forecast for

Walnut Creek CA

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Light south southwest wind.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. Light southwest wind.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of showers.  Partly sunny, with a high near 72. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 72 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm.  Low around 50. Chance of precipitation is 80%.

    Low: 50 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  Cloudy, with a high near 64.

    High: 64 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 44. Light south southwest wind.
Saturday
Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 50. Light southwest wind.
Sunday
Partly sunny, with a high near 74. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 49. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 72. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm. Low around 50. Chance of precipitation is 80%.
Tuesday
Showers, with thunderstorms also possible after 11am. Cloudy, with a high near 64.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Wednesday
A chance of rain. Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut Creek CA
 37.9°N 122.07°W (Elev. 203 ft)
10:56 pm PDT Apr 17, 2026
11pm PDT Apr 17, 2026-6pm PDT Apr 24, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database