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

Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Hazardous Weather Conditions

Current conditions at

Klamath Falls International Airport (KLMT)

Lat: 42.14703°NLon: 121.72548°WElev: 4081.0ft.

Clear

84°F

29°C

Humidity 14%
Wind Speed W 12 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 26 Aug 05:00 PM PDT
Extended Forecast for

Merrill OR

Red Flag Warning until August 26, 08:00pm
Red Flag Warning August 27, 02:00pm until August 27, 08:00pm
Click here for hazard details and duration
Red Flag Warning
Red Flag Warning
  •  
    Red Flag Warning until August 26, 08:00pm

    NOW until 8:00pm Wed

    Red Flag Warning

  • This Afternoon

    High: 85 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. West wind 5 to 9 mph becoming calm after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 84 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 85. West wind around 10 mph.
Tonight
Mostly cloudy, with a low around 50. West wind 5 to 9 mph becoming calm after midnight.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west 5 to 9 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 48. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
Mostly sunny, with a high near 82. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 80.
Sunday Night
Clear, with a low around 45.
Monday
Sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrill OR
 42.03°N 121.6°W (Elev. 4160 ft)
Last Update:
4:40 pm PDT Aug 26, 2026
Forecast Valid:
5pm PDT Aug 26, 2026-6pm PDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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