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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Klamath Falls International Airport (KLMT)

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

Clear

81°F

27°C

Humidity 28%
Wind Speed NNW 10 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 19 Aug 08:20 PM PDT
Extended Forecast for

Klamath Falls OR

Fire Weather Watch August 21, 02:00pm until August 21, 09:00pm
Click here for hazard details and duration
Fire Weather Watch

  • Tonight

    Tonight: Clear, with a low around 55. North northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 91. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 91 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 87. Light and variable wind becoming south southwest 8 to 13 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 87 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53. Southwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 26 mph.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 55. North northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Increasing clouds, with a high near 91. Calm wind becoming southwest 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 58. Southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 87. Light and variable wind becoming south southwest 8 to 13 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Partly cloudy, with a low around 53. Southwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 26 mph.
Saturday
Sunny, with a high near 83.
Saturday Night
Clear, with a low around 48.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Klamath Falls OR
 42.23°N 121.8°W (Elev. 4199 ft)
Last Update:
8:26 pm PDT Aug 19, 2026
Forecast Valid:
8pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026
 
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