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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Klamath Falls International Airport (KLMT)

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

Clear

36°F

2°C

Humidity 85%
Wind Speed SSW 5 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 07 Dec 06:53 PM PST
Extended Forecast for

Klamath Falls OR

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 51. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 51 °F

    Patchy Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. South southwest wind around 10 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 10am. Partly sunny, with a high near 54. Southwest wind around 10 mph.

    High: 54 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 36. Southwest wind around 8 mph.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain. Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 56.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 32. Calm wind.
Monday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 51. Calm wind becoming south southwest around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 32. South southwest wind around 10 mph.
Tuesday
A 30 percent chance of rain after 10am. Partly sunny, with a high near 54. Southwest wind around 10 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 36. Southwest wind around 8 mph.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 56.
Wednesday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 33.
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 30.
Friday
Patchy fog before 10am. Otherwise, sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Klamath Falls OR
 42.23°N 121.77°W (Elev. 4173 ft)
Last Update:
3:41 pm PST Dec 7, 2025
Forecast Valid:
7pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation