Clarkston, WA 99403 Monthly Weather

Asotin County11:38 PM PDT46.39°N, 117.06°W
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October 2026

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175°/49°Avg 72°/47°
280°/51°Avg 71°/47°
380°/48°Avg 71°/46°
481°/51°Avg 70°/46°
583°/49°Avg 70°/46°
679°/47°Avg 69°/45°
778°/47°Avg 68°/45°
876°/45°Avg 68°/45°
978°/46°<0.01 inAvg 67°/44°
1061°/44°Avg 66°/44°
1153°/43°0.02 inAvg 66°/44°
1254°/36°<0.01 inAvg 65°/43°
1360°/32°Avg 65°/43°
1466°/37°Avg 64°/42°
1569°/39°Avg 63°/42°
1680°/41°Avg 63°/42°
1773°/44°Avg 62°/41°
1868°/46°Avg 62°/41°
19Avg 61°/41°
20Avg 60°/40°
21 Mostly Clear then Slight Chance Rain Showers –/47°Avg 60°/40°
22 Rain Showers 67°/47°Avg 59°/40°
23 Slight Chance Rain Showers then Mostly Sunny 60°/36°Avg 59°/40°
24 Mostly Sunny 62°/39°Avg 58°/39°
25 Partly Sunny 64°/39°Avg 58°/39°
26 Chance Rain Showers 62°/38°Avg 57°/39°
27 Slight Chance Rain Showers 60°/37°Avg 57°/39°
28 Slight Chance Rain Showers 58°/–Avg 56°/38°
29 Partly cloudy 59°/41°Avg 56°/38°
30 Cloudy 60°/46°Avg 55°/38°
31Avg 55°/38°
Average high72° (normal 67°)
Average low44° (normal 44°)
Warmest / coldest83° / 32°
Precipitation0.02 in (normal 0.55 in to date)
Record high today83° (2003)
Record low today24° (1984)

Observed: Lewiston Area, 4 km away, records since 1881. 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 4Conservative index and reflects what the press published. Terms of use.