Pacific Storm System Across the West; Fire Weather Concerns in the Southeast

A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday. Fire weather concerns will continue into Tuesday across the Mid-South and Southeast as gusty winds and dry conditions persist. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

48°F

9°C

Humidity 100%
Wind Speed SSW 7 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 21 Apr 12:28 AM PDT
Extended Forecast for

Walnut Creek CA

  • Overnight

    Overnight: Rain, mainly before 5am, then showers after 5am.  Low around 51. South wind around 5 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Rain

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then rain likely and possibly a thunderstorm after 5pm.  High near 62. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain before 11pm, then a chance of rain after 2am.  Mostly cloudy, with a low around 47. Southwest wind 5 to 8 mph.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly before 11am.  Mostly sunny, with a high near 65. West wind 3 to 6 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 44. West wind 5 to 7 mph becoming calm  after midnight.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 7am.  Otherwise, sunny, with a high near 71.

    High: 71 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain, mainly before 5am, then showers after 5am. Low around 51. South wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then rain likely and possibly a thunderstorm after 5pm. High near 62. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of rain before 11pm, then a chance of rain after 2am. Mostly cloudy, with a low around 47. Southwest wind 5 to 8 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 40 percent chance of rain, mainly before 11am. Mostly sunny, with a high near 65. West wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 44. West wind 5 to 7 mph becoming calm after midnight.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 71.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut Creek CA
 37.9°N 122.07°W (Elev. 203 ft)
12:31 am PDT Apr 21, 2026
1am PDT Apr 21, 2026-6pm PDT Apr 27, 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