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

88°F

31°C

Humidity 29%
Wind Speed S 6 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 23 Aug 01:15 PM PDT
Extended Forecast for

4 Miles SSW Saint Helena CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. Light and variable wind becoming southwest around 6 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 79. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. West southwest wind 5 to 9 mph becoming light west northwest  after midnight.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. West wind around 6 mph becoming calm  in the morning.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. Light and variable wind becoming southwest around 6 mph.
Tonight
Partly cloudy, with a low around 62. West southwest wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 79. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 58. West southwest wind 5 to 9 mph becoming light west northwest after midnight.
Tuesday
Mostly sunny, with a high near 80. West wind around 6 mph becoming calm in the morning.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Saint Helena CA
 38.46°N 122.5°W (Elev. 2372 ft)
1:26 pm PDT Aug 23, 2026
1pm PDT Aug 23, 2026-6pm PDT Aug 29, 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