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

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

CHEHALIS (CLSW1)

Lat: 46.61°NLon: 122.90833°WElev: 262.0ft.

NA

51°F

11°C

Humidity 83%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 17 Mar 04:09 AM PDT
Extended Forecast for

3 Miles N Napavine WA

  • Overnight

    Overnight: Rain. Low around 46. Light south wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain

  • Tuesday

    Tuesday: Rain. High near 54. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 49. South southeast wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • Wednesday

    Wednesday: Rain. High near 58. South wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely. Cloudy, with a low around 49. South wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Rain Likely

  • Thursday

    Thursday: Rain. High near 60. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Rain

  • Friday

    Friday: Rain. Cloudy, with a high near 58.

    High: 58 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
Rain. Low around 46. Light south wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 54. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 49. South southeast wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 58. South wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely. Cloudy, with a low around 49. South wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 60. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 51. Chance of precipitation is 80%.
Friday
Rain. Cloudy, with a high near 58.
Friday Night
A chance of rain before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 37.
Saturday
A chance of rain and snow before 11am, then a slight chance of rain. Partly sunny, with a high near 53.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 33.
Sunday
A chance of rain. Partly sunny, with a high near 53.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Napavine WA
 46.62°N 122.91°W (Elev. 400 ft)
Last Update:
2:25 am PDT Mar 17, 2026
Forecast Valid:
4am PDT Mar 17, 2026-6pm PDT Mar 23, 2026
 
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