Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

87°F

31°C

Humidity 14%
Wind Speed NE 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 04 Aug 11:53 AM PDT
Extended Forecast for

11 Miles S Ashland OR

Heat Advisory August 5, 11:00am until August 6, 11:00pm
Red Flag Warning August 4, 12:14pm until August 4, 09:00pm
Red Flag Warning August 5, 02:00pm until August 5, 09:00pm
Click here for hazard details and duration
Heat Advisory
Red Flag Warning
Red Flag Warning
  •  
    Red Flag Warning August 4, 12:14pm until August 4, 09:00pm

    NOW until 9:00pm Tue

    Red Flag Warning

  • This Afternoon

    High: 97 °F

    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke after 8pm. Clear, with a low around 66. North northwest wind 5 to 9 mph becoming calm  after midnight.

    Low: 66 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Areas of smoke before 2pm, then patchy smoke after 3pm. Sunny and hot, with a high near 96. Calm wind becoming south around 6 mph in the afternoon.

    High: 96 °F

    Areas Smoke

  • Wednesday Night

    Wednesday Night: Patchy smoke before 7pm, then patchy smoke after 9pm. Clear, with a low around 67. North northwest wind 5 to 9 mph becoming calm  after midnight.

    Low: 67 °F

    Patchy Smoke

  • Thursday

    Thursday: Sunny and hot, with a high near 96. Light and variable wind.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

This Afternoon
Patchy smoke before 2pm. Sunny and hot, with a high near 97. Light and variable wind becoming north around 6 mph.
Tonight
Patchy smoke after 8pm. Clear, with a low around 66. North northwest wind 5 to 9 mph becoming calm after midnight.
Wednesday
Areas of smoke before 2pm, then patchy smoke after 3pm. Sunny and hot, with a high near 96. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Patchy smoke before 7pm, then patchy smoke after 9pm. Clear, with a low around 67. North northwest wind 5 to 9 mph becoming calm after midnight.
Thursday
Sunny and hot, with a high near 96. Light and variable wind.
Thursday Night
Clear, with a low around 67.
Friday
Sunny, with a high near 95.
Friday Night
Clear, with a low around 65.
Saturday
Sunny, with a high near 90.
Saturday Night
Clear, with a low around 61.
Sunday
Sunny, with a high near 86.
Sunday Night
Clear, with a low around 59.
Monday
Sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles S Ashland OR
 42.03°N 122.67°W (Elev. 3868 ft)
11:25 am PDT Aug 4, 2026
12pm PDT Aug 4, 2026-6pm PDT Aug 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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