Chehalis, WA Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Chehalis, WA in one place.
Patchy fog and showers and thunderstorms before 2pm, then a chance of rain between 2pm and 4pm. Mostly cloudy, with a high near 73. Southwest wind 3 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Chehalis, WA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 15, 2026 11:00 AM PDT.
The active forecast window currently covers Jul 16 to Jul 21, 2026 for Chehalis, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 21, 2026
- Latest sync
- Jul 15, 2026 11:00 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Chehalis
Monday looks like the warmest upcoming period in Chehalis at 92 degrees F.
Friday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Thursday at about 3 to 10 mph SW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Jul 15, 2026 11:00 AM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KLGX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy fog after 2am. Mostly cloudy, with a low around 52. South southwest wind 3 to 10 mph.
Patchy fog before 8am. Mostly sunny, with a high near 78. South southwest wind 3 to 8 mph.
Mostly clear, with a low around 51.
Mostly sunny, with a high near 82.
Mostly clear, with a low around 52.
Sunny, with a high near 89.
Mostly clear, with a low around 56.
Mostly sunny, with a high near 92.
Partly cloudy, with a low around 59.
Mostly sunny, with a high near 88.
Partly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Patchy Fog
|
73°F |
3 to 10 mph
SW
|
|
Thursday Night
Jul 16
|
Mostly Cloudy then Patchy Fog
|
52°F |
3 to 10 mph
SSW
|
|
Friday
Jul 17
|
Patchy Fog then Mostly Sunny
|
78°F |
3 to 8 mph
SSW
|
|
Friday Night
Jul 17
|
Mostly Clear
|
51°F |
0 to 9 mph
WNW
|
|
Saturday
Jul 18
|
Mostly Sunny
|
82°F |
0 to 5 mph
NNW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
52°F |
0 to 6 mph
NNW
|
|
Sunday
Jul 19
|
Sunny
|
89°F |
0 to 6 mph
N
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
56°F |
0 to 5 mph
NNW
|
|
Monday
Jul 20
|
Mostly Sunny
|
92°F |
2 mph
N
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
59°F |
2 mph
NW
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
88°F |
0 to 6 mph
NNW
|
|
Tuesday Night
Jul 21
|
Partly Cloudy
|
56°F |
0 to 6 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chehalis.
