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

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

37°F

3°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 37°F (3°C)
Visibility 7.00 mi
Last update 10 Nov 03:35 AM PST
Extended Forecast for

Prosser WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 37. Light east wind.

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 57. Southwest wind 3 to 5 mph.

    High: 57 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 33. Light west wind.

    Low: 33 °F

    Partly Cloudy
    then Patchy
    Fog

  • Veterans Day

    Veterans Day: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 54. Light and variable wind.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 20 percent chance of rain. Patchy fog before 10am. Otherwise, cloudy, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.

    High: 54 °F

    Rain Likely
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 37. Light east wind.
Monday
Mostly cloudy, with a high near 57. Southwest wind 3 to 5 mph.
Monday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 33. Light west wind.
Veterans Day
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 54. Light and variable wind.
Tuesday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 37. Calm wind.
Wednesday
A 20 percent chance of rain. Patchy fog before 10am. Otherwise, cloudy, with a high near 52.
Wednesday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Thursday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 35.
Friday
A slight chance of rain before 10am, then a slight chance of rain after 4pm. Partly sunny, with a high near 52.
Friday Night
A chance of rain. Mostly cloudy, with a low around 35.
Saturday
A chance of rain. Mostly cloudy, with a high near 53.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 38.
Sunday
A chance of rain. Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
Last Update:
3:22 am PST Nov 10, 2025
Forecast Valid:
3am PST Nov 10, 2025-6pm PST Nov 16, 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