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

Hazardous Weather Conditions

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

36°C

97°F

Humidity 19%
Wind Speed N 10 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 9°C (49°F)
Visibility 16 km
Heat Index34°C (94°F)
Last update 12 Jul 07:00 PM PDT
Extended Forecast for

Yreka CA

Extreme Heat Warning July 12, 07:19pm until July 14, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 12, 07:19pm until July 14, 08:00pm

    NOW until 8:00pm Mon

    Extreme Heat Warning

  • Tonight

    Low: 20 °C

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 39. Light and variable wind becoming north northeast 6 to 11 km/h in the afternoon.

    High: 39 °C

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20. North wind 13 to 18 km/h becoming light west northwest after midnight. Winds could gust as high as 32 km/h.

    Low: 20 °C

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 37. Light and variable wind becoming north 8 to 13 km/h in the afternoon.

    High: 37 °C

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 18. North wind 13 to 18 km/h becoming light after midnight. Winds could gust as high as 32 km/h.

    Low: 18 °C

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 39.

    High: 39 °C

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18.

    Low: 18 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 37.

    High: 37 °C

    Hot

Detailed Forecast

Tonight
Clear, with a low around 20. North wind 8 to 13 km/h becoming light and variable in the evening.
Sunday
Sunny and hot, with a high near 39. Light and variable wind becoming north northeast 6 to 11 km/h in the afternoon.
Sunday Night
Mostly clear, with a low around 20. North wind 13 to 18 km/h becoming light west northwest after midnight. Winds could gust as high as 32 km/h.
Monday
Sunny and hot, with a high near 37. Light and variable wind becoming north 8 to 13 km/h in the afternoon.
Monday Night
Clear, with a low around 18. North wind 13 to 18 km/h becoming light after midnight. Winds could gust as high as 32 km/h.
Tuesday
Sunny and hot, with a high near 39.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Sunny and hot, with a high near 37.
Wednesday Night
Mostly clear, with a low around 18.
Thursday
Sunny and hot, with a high near 37.
Thursday Night
Mostly clear, with a low around 17.
Friday
Sunny and hot, with a high near 36.
Friday Night
Mostly clear, with a low around 17.
Saturday
Sunny and hot, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.72°N 122.65°W (Elev. 2762 m)
Last Update:
4:41 pm PDT Jul 12, 2025
Forecast Valid:
7pm PDT Jul 12, 2025-6pm PDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation