National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

FW3625 San Ramon (F3625)

Lat: 37.738°NLon: 121.945°WElev: 415.09ft.

NA

84°F

29°C

Humidity 22%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 41°F (5°C)
Visibility NA
Heat Index81°F (27°C)
Last update 28 Aug 03:40 PM PDT
Extended Forecast for

4 Miles ENE San Ramon CA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly sunny, with a high near 81. Calm wind becoming west southwest 5 to 7 mph.

    High: 81 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 55. West wind 5 to 9 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 78. Light west southwest wind becoming southwest 6 to 11 mph in the morning.

    High: 78 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Mostly sunny, with a high near 81. South wind 5 to 7 mph becoming west southwest in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 81. Calm wind becoming west southwest 5 to 7 mph.
Tonight
Mostly clear, with a low around 55. West wind 5 to 9 mph becoming calm in the evening.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 78. Light west southwest wind becoming southwest 6 to 11 mph in the morning.
Saturday Night
Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Sunday
Mostly sunny, with a high near 81. South wind 5 to 7 mph becoming west southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 55.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 80.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 55.
Friday
Patchy fog. Otherwise, sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE San Ramon CA
 37.79°N 121.9°W (Elev. 725 ft)
Last Update:
1:26 pm PDT Aug 28, 2026
Forecast Valid:
3pm PDT Aug 28, 2026-6pm PDT Sep 4, 2026
 
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