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Tropical Storm Edouard Along the Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard off the central Gulf Coast will bring tropical storm conditions and heavy rainfall to portions of Upper Texas and southwestern Louisiana coasts Tuesday into Wednesday. Storm Surge Watches and Tropical Storm Warnings are in effect. Hot and humid conditions will continue to expand from the Central Plains into the Ohio Valley and Mid-Atlantic this week. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

80°F

27°C

Humidity 49%
Wind Speed SSW 0 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 59°F (15°C)
Visibility NA
Heat Index81°F (27°C)
Last update 31 Aug 05:30 PM PDT
Extended Forecast for

Onalaska WA

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: A 10 percent chance of rain after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 69. Calm wind becoming south southwest around 6 mph.

    High: 69 °F

    Patchy Fog
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 11pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 52. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain, mainly after 11am. High near 64. South southeast wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 49. South wind 7 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain then
    Rain Likely

  • Thursday

    Thursday: Rain likely, then showers and possibly a thunderstorm after 11am. High near 63. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Showers

  • Thursday Night

    Thursday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Rain Likely

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 67.

    High: 67 °F

    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain. Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 52. Calm wind.
Tuesday
A 10 percent chance of rain after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 69. Calm wind becoming south southwest around 6 mph.
Tuesday Night
A slight chance of rain before 11pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 52. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Wednesday
Rain, mainly after 11am. High near 64. South southeast wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 49. South wind 7 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain likely, then showers and possibly a thunderstorm after 11am. High near 63. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Friday
A chance of rain. Mostly cloudy, with a high near 67.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Saturday
A slight chance of rain. Partly sunny, with a high near 71.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 49.
Sunday
A slight chance of rain. Mostly sunny, with a high near 72.
Sunday Night
A chance of rain. Partly cloudy, with a low around 51.
Labor Day
A slight chance of rain. Partly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
Last Update:
1:16 pm PDT Aug 31, 2026
Forecast Valid:
5pm PDT Aug 31, 2026-6pm PDT Sep 7, 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