Chehalis, WA 98532 Monthly Weather

Lewis County5:32 PM PDT46.64°N, 122.97°W
← September

October 2026

Sun
Mon
Tue
Wed
Thu
Fri
Sat
167°/50°
266°/51°
366°/51°
472°/53°
569°/51°
661°/48°
761°/46°
869°/47°
952°/40°
1051°/38°
1153°/37°
1256°/38°
1359°/45°
1460°/49°
1569°/54°
1670°/53°
1757°/42°
18
19
20 Patchy Frost then Sunny 66°/36°
21 Areas Of Fog then Sunny 70°/37°
22 Mostly Cloudy 60°/34°
23 Mostly Sunny 59°/33°
24 Light Rain Likely 55°/35°
25 Chance Light Rain 58°/35°
26 Mostly Sunny 60°/35°
27 Cloudy 66°/43°
28 Cloudy 66°/42°
29
30
31
Average high62°
Average low47°
Warmest / coldest72° / 37°
Record high today71° (2013)
Record low today32° (2012)

Observed: Abernathy Mountain Washington, 34 km away, records since 1995. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.