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.

Overcast

39°F

4°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 07 Dec 08:53 PM PST
Extended Forecast for

8 Miles WSW Klamath Falls OR

  • Tonight

    Tonight: A 20 percent chance of rain before 10pm. Snow level 7100 feet. Mostly cloudy, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 48. South southwest wind 3 to 6 mph.

    High: 48 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 32. Southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 49. West southwest wind around 11 mph.

    High: 49 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 37. West southwest wind around 11 mph.

    Low: 37 °F

    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly before 10am. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of rain before 10pm. Snow level 7100 feet. Mostly cloudy, with a low around 32. South wind around 6 mph.
Monday
Partly sunny, with a high near 48. South southwest wind 3 to 6 mph.
Monday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 32. Southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 49. West southwest wind around 11 mph.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 37. West southwest wind around 11 mph.
Wednesday
A 30 percent chance of rain, mainly before 10am. Partly sunny, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 30.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
A slight chance of rain. Snow level 6300 feet rising to 7000 feet in the afternoon. Mostly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WSW Klamath Falls OR
 42.18°N 121.94°W (Elev. 4948 ft)
Last Update:
3:41 pm PST Dec 7, 2025
Forecast Valid:
9pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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