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Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 550.0ft.

NA

55°F

13°C

Humidity 83%
Wind Speed WSW 0 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 50°F (10°C)
Visibility NA
Last update 12 Apr 03:00 PM PDT
Extended Forecast for

4 Miles SSW Onalaska WA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 60. West northwest wind around 5 mph.

    High: 60 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 9pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 43. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 43 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly before 11am. Mostly cloudy, with a high near 53. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 39. West southwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 48. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 35. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Rain then
    Rain Likely

  • Wednesday

    Wednesday: Rain likely, then showers and possibly a thunderstorm after 11am. High near 48. Chance of precipitation is 90%.

    High: 48 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain likely before 5am, then a slight chance of rain and snow. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Rain Likely
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 8am, then a chance of rain. Partly sunny, with a high near 52.

    High: 52 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

This Afternoon
A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 60. West northwest wind around 5 mph.
Tonight
A chance of rain before 9pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 43. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Monday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 53. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39. West southwest wind around 5 mph becoming calm in the evening.
Tuesday
Rain. High near 48. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 35. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain likely, then showers and possibly a thunderstorm after 11am. High near 48. Chance of precipitation is 90%.
Wednesday Night
Rain likely before 5am, then a slight chance of rain and snow. Mostly cloudy, with a low around 31.
Thursday
A slight chance of rain and snow before 8am, then a chance of rain. Partly sunny, with a high near 52.
Thursday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 41.
Sunday
Rain likely. Mostly cloudy, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.54°N 122.75°W (Elev. 535 ft)
Last Update:
11:27 am PDT Apr 12, 2026
Forecast Valid:
3pm PDT Apr 12, 2026-6pm PDT Apr 19, 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