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

33°C

91°F

Humidity 25%
Wind Speed N 3 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 11°C (51°F)
Visibility 16 km
Heat Index31°C (88°F)
Last update 13 Jul 11:53 AM PDT
Extended Forecast for

15 Miles NE Weed CA

Heat Advisory July 13, 12:01pm until July 15, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 13, 12:01pm until July 15, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • This Afternoon

    High: 33 °C

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Widespread haze. Mostly clear, with a low around 16. West northwest wind 8 to 13 km/h becoming east southeast in the evening.

    Low: 16 °C

    Slight Chance
    T-storms then
    Haze

  • Monday

    Monday: A 20 percent chance of showers after 11am. Sunny, with a high near 32. Northeast wind 10 to 16 km/h becoming west northwest in the afternoon.

    High: 32 °C

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before 11pm. Widespread haze between 9pm and 10pm. Mostly clear, with a low around 14. West northwest wind 16 to 21 km/h becoming north northeast 8 to 13 km/h after midnight. Winds could gust as high as 32 km/h.

    Low: 14 °C

    Slight Chance
    Showers then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 31. East southeast wind 10 to 16 km/h becoming west in the morning.

    High: 31 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 14.

    Low: 14 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 30.

    High: 30 °C

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 14.

    Low: 14 °C

    Mostly Clear

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 33. Light west northwest wind becoming west 8 to 13 km/h.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Widespread haze. Mostly clear, with a low around 16. West northwest wind 8 to 13 km/h becoming east southeast in the evening.
Monday
A 20 percent chance of showers after 11am. Sunny, with a high near 32. Northeast wind 10 to 16 km/h becoming west northwest in the afternoon.
Monday Night
A 20 percent chance of showers before 11pm. Widespread haze between 9pm and 10pm. Mostly clear, with a low around 14. West northwest wind 16 to 21 km/h becoming north northeast 8 to 13 km/h after midnight. Winds could gust as high as 32 km/h.
Tuesday
Sunny, with a high near 31. East southeast wind 10 to 16 km/h becoming west in the morning.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Sunny, with a high near 30.
Wednesday Night
Mostly clear, with a low around 14.
Thursday
Sunny, with a high near 29.
Thursday Night
Mostly clear, with a low around 13.
Friday
Sunny, with a high near 29.
Friday Night
Mostly clear, with a low around 13.
Saturday
Sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NE Weed CA
 41.59°N 122.19°W (Elev. 4806 m)
Last Update:
10:41 am PDT Jul 13, 2025
Forecast Valid:
12pm PDT Jul 13, 2025-6pm PDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation