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

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.

Clear

66°F

19°C

Humidity 50%
Wind Speed E 4 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 18 Aug 12:53 AM PDT
Extended Forecast for

6 Miles S Montague CA

  • Overnight

    Overnight: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Calm wind becoming north around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 57. North wind 5 to 9 mph becoming calm  in the evening.

    Low: 57 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 95. Light and variable wind.

    High: 95 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Thursday Night

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

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 56. Calm wind.
Tuesday
Sunny, with a high near 93. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 57. North wind 5 to 9 mph becoming calm in the evening.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 95. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 58. North northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 95.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 87.
Saturday Night
Clear, with a low around 52.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Montague CA
 41.65°N 122.51°W (Elev. 2598 ft)
11:26 pm PDT Aug 17, 2026
1am PDT Aug 18, 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