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

Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Clear

72°F

22°C

Humidity 53%
Wind Speed SW 3 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 23 Aug 10:20 AM PDT
Extended Forecast for

6 Miles SW Saint Helena CA

  • Today

    Today: Mostly cloudy early, then becoming sunny, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Widespread haze before 9am. Sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 78 °F

    Haze then
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 55. West northwest wind 3 to 7 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. West southwest wind 3 to 5 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy early, then becoming sunny, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.
Monday
Widespread haze before 9am. Sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 55. West northwest wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 78. West southwest wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Saint Helena CA
 38.45°N 122.56°W (Elev. 1594 ft)
Last Update:
9:17 am PDT Aug 23, 2026
Forecast Valid:
10am PDT Aug 23, 2026-6pm PDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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