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Onalaska, WA Weather Forecast
Onalaska, WA Weather Forecast Dated: 626 AM Wed Sep 02 2026 (Onalaska Time)
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Wednesday, September 2, 2026
Mid-Morning
60°F 16°C
Drizzle
Mid-Afternoon
54°F 12°C
Light Showers
Early-Evening
54°F 12°C
Light Showers
Brisk around 54°F 12°C, rounds of showers expected off and on all day, with increasing humidity and steady pressure. Winds turning from the SSE to the SE at 4 mph 7 km/h.
Thursday, September 3, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
67°F 19°C
Light Showers
Early-Evening
57°F 14°C
Light Showers
Mildly cool near 67°F 19°C, clouds and showers taking over for the afternoon and evening, with steady humidity and steady pressure.
Friday, September 4, 2026
Mid-Morning
53°F 12°C
Light Fog
Mid-Afternoon
71°F 22°C
Scattered Showers
Early-Evening
61°F 17°C
Overcast
Enjoyable around 71°F 22°C, locally heavy downpours at times, with lower humidity and steady pressure.
Saturday, September 5, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
67°F 19°C
Sunny
Mild temperatures up to 78°F 26°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling.
Sunday, September 6, 2026
Mid-Morning
60°F 16°C
Partly Cloudy
Mid-Afternoon
83°F 28°C
Partly Cloudy
Early-Evening
72°F 23°C
Overcast
Very warm with a high of 83°F 28°C, partly cloudy through the afternoon, turning overcast this evening, with steady humidity and barometric pressure falling.
Monday, September 7, 2026
Mid-Morning
59°F 15°C
Light Showers
Mid-Afternoon
62°F 17°C
Scattered Showers
Early-Evening
61°F 16°C
Scattered Showers
Mildly cool near 62°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure.
Tuesday, September 8, 2026
Mid-Morning
57°F 14°C
Scattered Showers
Mid-Afternoon
64°F 18°C
Scattered Showers
Early-Evening
59°F 15°C
Sunny
Comfortable at 64°F 18°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Wednesday, September 9, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
71°F 21°C
Sunny
Early-Evening
60°F 16°C
Sunny
Enjoyable around 71°F 21°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Thursday, September 10, 2026
Mid-Morning
55°F 13°C
Scattered Showers
Mid-Afternoon
60°F 15°C
Light Showers
Early-Evening
55°F 13°C
Sunny
Refreshing around 60°F 15°C, locally heavy downpours at times, with increasing humidity and barometric pressure falling.
Friday, September 11, 2026
Mid-Morning
53°F 11°C
Scattered Showers
Mid-Afternoon
60°F 16°C
Light Showers
Early-Evening
56°F 14°C
Cloudy
Mildly cool near 60°F 16°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
69°F 21°C
Sunny
Early-Evening
61°F 16°C
Nearby Thunderstorms
Pleasant near 69°F 21°C, locally heavy thunderstorms at times, with lower humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
53°F 11°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
61°F 16°C
Nearby Thunderstorms
Comfortable with temperatures reaching 73°F 23°C, heavy thunderstorms conditions at times, with lower humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
62°F 17°C
Light Showers
Enjoyable around 73°F 23°C, drier conditions through late afternoon before showers move in, with steady humidity and steady pressure.
Tuesday, September 15, 2026
Mid-Morning
52°F 11°C
Cloudy
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
60°F 15°C
Overcast
Mild temperatures up to 70°F 21°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure.
Onalaska, WA Weather Radar Map
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