Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

TRINITY RIVER NEAR DOUGLAS CITY 1SW (DCYC1)

Lat: 40.64528°NLon: 122.95667°WElev: 1598ft.

NA

N/A

Humidity NA
Wind Speed NA NA MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

4 Miles S Helena CA

  • Tonight

    Tonight: Patchy smoke after 11pm. Mostly clear, with a low around 61. West wind 6 to 11 mph becoming light and variable  after midnight.

    Low: 61 °F

    Patchy Smoke

  • Tuesday

    Tuesday: Patchy smoke before 11am. Mostly sunny, with a high near 79. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 79 °F

    Patchy Smoke
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy smoke between 11pm and 2am. Partly cloudy, with a low around 63. West wind 5 to 11 mph.

    Low: 63 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 79. East wind around 5 mph becoming calm.

    High: 79 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. Northwest wind 5 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

Detailed Forecast

Tonight
Patchy smoke after 11pm. Mostly clear, with a low around 61. West wind 6 to 11 mph becoming light and variable after midnight.
Tuesday
Patchy smoke before 11am. Mostly sunny, with a high near 79. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Tuesday Night
Patchy smoke between 11pm and 2am. Partly cloudy, with a low around 63. West wind 5 to 11 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 79. East wind around 5 mph becoming calm.
Wednesday Night
Mostly clear, with a low around 62. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 77. Light and variable wind becoming south 5 to 7 mph in the morning.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Sunny, with a high near 72.
Friday Night
Clear, with a low around 52.
Saturday
Sunny, with a high near 71.
Saturday Night
Clear, with a low around 56.
Sunday
Sunny, with a high near 75.
Sunday Night
Clear, with a low around 58.
Monday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Helena CA
 40.7°N 123.14°W (Elev. 4839 ft)
2:10 pm PDT Aug 17, 2026
8pm PDT Aug 17, 2026-6pm PDT Aug 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