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Onalaska, WA Weather Forecast

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Onalaska, WA Weather Forecast

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Onalaska WA weather - Fog - 50°F
Fog
50°F
Updated 6:10 am
Feels Like 48°F
Humidity 100%
Wind N 0 mph
Barometer  30 in
Dew Point 50°F
Onalaska WA weather - Fog - 10°C
Fog
10°C
Updated 6:10 am
Feels Like 9°C
Humidity 100%
Wind N 0 km/h
Barometer  101.5 kPa
Dew Point 10°C
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Onalaska Weather Forecast

TODAY TONIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT
Onalaska, WA Weather - Today Chance Of Rain Onalaska, WA Weather - Tonight Partly Cloudy Onalaska, WA Weather - Labor Day Mostly Cloudy Onalaska, WA Weather - Monday Night Partly Cloudy Onalaska, WA Weather - Tuesday Mostly Sunny Onalaska, WA Weather - Tuesday Night Clear Onalaska, WA Weather - Wednesday Sunny Onalaska, WA Weather - Wednesday Night Mostly Clear Onalaska, WA Weather - Thursday Sunny Onalaska, WA Weather - Thursday Night Partly Cloudy Onalaska, WA Weather - Friday Chance Of Rain Onalaska, WA Weather - Friday Night Chance Of Rain
Chance of Rain Partly Cloudy Mostly Cloudy Partly Cloudy Mostly Sunny Clear Sunny Mostly Clear Sunny Partly Cloudy Chance of Rain Chance of Rain
Hi: 73°FHi: 23°C
 Lo: 50°FLo: 10°C Hi: 66°FHi: 19°C
 Lo: 50°FLo: 10°C Hi: 75°FHi: 24°C
 Lo: 51°FLo: 11°C Hi: 81°FHi: 27°C
 Lo: 53°FLo: 12°C Hi: 79°FHi: 26°C
 Lo: 51°FLo: 11°C Hi: 73°FHi: 23°C
 Lo: 51°FLo: 11°C
POP = Probability of Precipitation.
Weather Outlook Updated: 236 AM PDT Sun Sep 06 2026 Onalaska, WA Weather - WeatherWorld.com

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Issued: 230 AM PDT Sun Sep 6 2026

Aviation

...VFR conditions early this morning with light surface winds. VFR expected to prevail today, with the exception of HQM. Brief low clouds may develop this morning with MVFR/IFR conditions. Brief vis reductions also possible in the southern interior this morning. Surface flow will transition to onshore starting this afternoon, resulting in the marine layer bringing widespread MVFR cigs this evening along the coast and by Monday morning for the interior terminals.

KSEA...VFR today. Northeas...