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Onalaska WI Weather - Clear - 68°F
Clear
68°F
Updated 3:52 am
Feels Like 67°F
Humidity 87%
Wind ESE 8 mph
Barometer  30.1 in
Dew Point 64°F
Onalaska WI Weather - Clear - 20°C
Clear
20°C
Updated 3:52 am
Feels Like 19°C
Humidity 87%
Wind ESE 13 km/h
Barometer  101.9 kPa
Dew Point 18°C
Onalaska, WI Weather and Current Conditionsonalaska wi weather forecast

Onalaska, WI Weather Forecast

Onalaska Wisconsin WeatherOnalaska, Wisconsin Weather Weather Forecast
14 day API forecast for Onalaska, Wisconsin. Note. The 7-day weather forecast for Onalaska, WI is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Onalaska, WI Weather Forecast Dated: 352 AM Mon Sep 07 2026
Expect a mild stretch 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.

Monday, September 7, 2026

Mid-Morning
Onalaska Weather - 2026-09-07 - Morning - Sunny
67°F 20°C
Sunny
Mid-Afternoon
Onalaska Weather - 2026-09-07 - Afternoon - Overcast
71°F 21°C
Overcast
Early-Evening
Onalaska Weather - 2026-09-07 - Evening - Overcast
70°F 21°C
Overcast
Pleasant near 71°F 21°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds out of the S at 7 mph 12 km/h. Gusts up to 27 mph 43 km/h.

Tuesday, September 8, 2026

Mid-Morning
Onalaska Weather - 2026-09-08 - Morning - Light Rain
63°F 17°C
Light Rain
Mid-Afternoon
Onalaska Weather - 2026-09-08 - Afternoon - Scattered Showers
80°F 27°C
Scattered Showers
Early-Evening
Onalaska Weather - 2026-09-08 - Evening - Overcast
73°F 23°C
Overcast
Balmy with temperatures reaching 80°F 27°C, scattered downpours possible, with lower humidity and barometric pressure falling. Winds switching from the SSE to the S at 8 mph 13 km/h. Gusts up to 22 mph 36 km/h.

Wednesday, September 9, 2026

Mid-Morning
Onalaska Weather - 2026-09-09 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Onalaska Weather - 2026-09-09 - Afternoon - Sunny
87°F 31°C
Sunny
Early-Evening
Onalaska Weather - 2026-09-09 - Evening - Sunny
76°F 24°C
Sunny
Quite warm around 87°F 31°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds moving from the NW to the WNW at 10 mph 16 km/h.

Thursday, September 10, 2026

Mid-Morning
Onalaska Weather - 2026-09-10 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Onalaska Weather - 2026-09-10 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Onalaska Weather - 2026-09-10 - Evening - Sunny
71°F 22°C
Sunny
Warm temperatures up to 80°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the N to the S at 5 mph 8 km/h.

Friday, September 11, 2026

Mid-Morning
Onalaska Weather - 2026-09-11 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Onalaska Weather - 2026-09-11 - Afternoon - Cloudy
88°F 31°C
Cloudy
Early-Evening
Onalaska Weather - 2026-09-11 - Evening - Nearby Thunderstorms
80°F 27°C
Nearby Thunderstorms
Very warm with a high of 88°F 31°C, locally heavy thunderstorms at times, with steady humidity and barometric pressure falling. Winds shifting from the S to the SE at 14 mph 22 km/h. Gusts up to 25 mph 41 km/h.

Saturday, September 12, 2026

Mid-Morning
Onalaska Weather - 2026-09-12 - Morning - Light Fog
66°F 19°C
Light Fog
Mid-Afternoon
Onalaska Weather - 2026-09-12 - Afternoon - Light Showers
67°F 20°C
Light Showers
Early-Evening
Onalaska Weather - 2026-09-12 - Evening - Light Showers
67°F 19°C
Light Showers
Mildly cool near 67°F 20°C, dry early, with showers continuing through afternoon and evening, with steady humidity and steady pressure. Winds turning from the SW to the NE at 5 mph 8 km/h.

Sunday, September 13, 2026

Mid-Morning
Onalaska Weather - 2026-09-13 - Morning - Heavy Rain Showers
54°F 12°C
Heavy Rain Showers
Mid-Afternoon
Onalaska Weather - 2026-09-13 - Afternoon - Light Showers
53°F 12°C
Light Showers
Early-Evening
Onalaska Weather - 2026-09-13 - Evening - Light Showers
52°F 11°C
Light Showers
Chilly near 53°F 12°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds out of the NW at 11 mph 18 km/h. Gusts up to 25 mph 41 km/h.

Monday, September 14, 2026

Mid-Morning
Onalaska Weather - 2026-09-14 - Morning - Scattered Showers
52°F 11°C
Scattered Showers
Mid-Afternoon
Onalaska Weather - 2026-09-14 - Afternoon - Sunny
63°F 17°C
Sunny
Early-Evening
Onalaska Weather - 2026-09-14 - Evening - Sunny
57°F 14°C
Sunny
Cool with a high near 63°F 17°C, scattered downpours possible, with lower humidity and barometric pressure rising. Winds tapering down from NNW 12 mph 20 km/h to NW 4 mph 7 km/h.

Tuesday, September 15, 2026

Mid-Morning
Onalaska Weather - 2026-09-15 - Morning - Sunny
53°F 12°C
Sunny
Mid-Afternoon
Onalaska Weather - 2026-09-15 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
Onalaska Weather - 2026-09-15 - Evening - Sunny
60°F 15°C
Sunny
Refreshing around 67°F 19°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the SE to the SSE at 7 mph 11 km/h.

Wednesday, September 16, 2026

Mid-Morning
Onalaska Weather - 2026-09-16 - Morning - Light Fog
56°F 13°C
Light Fog
Mid-Afternoon
Onalaska Weather - 2026-09-16 - Afternoon - Sunny
69°F 21°C
Sunny
Early-Evening
Onalaska Weather - 2026-09-16 - Evening - Sunny
62°F 17°C
Sunny
Mild with a high of 69°F 21°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the S to the SSE at 9 mph 14 km/h.

Thursday, September 17, 2026

Mid-Morning
Onalaska Weather - 2026-09-17 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Onalaska Weather - 2026-09-17 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Onalaska Weather - 2026-09-17 - Evening - Overcast
64°F 18°C
Overcast
Pleasant near 71°F 22°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and barometric pressure falling. Winds turning from the S to the SSE at 8 mph 13 km/h.

Friday, September 18, 2026

Mid-Morning
Onalaska Weather - 2026-09-18 - Morning - Sunny
62°F 16°C
Sunny
Mid-Afternoon
Onalaska Weather - 2026-09-18 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Onalaska Weather - 2026-09-18 - Evening - Sunny
72°F 22°C
Sunny
Comfortable with temperatures reaching 78°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds SSW at 16 mph 25 km/h. Gusts up to 23 mph 37 km/h.

Saturday, September 19, 2026

Mid-Morning
Onalaska Weather - 2026-09-19 - Morning - Overcast
69°F 21°C
Overcast
Mid-Afternoon
Onalaska Weather - 2026-09-19 - Afternoon - Cloudy
76°F 24°C
Cloudy
Early-Evening
Onalaska Weather - 2026-09-19 - Evening - Light Showers
68°F 20°C
Light Showers
Enjoyable around 76°F 24°C, drier conditions through late afternoon before showers move in, with lower humidity and barometric pressure rising. Winds picking up from WSW at 4 mph 7 km/h to NNW at 13 mph 20 km/h. Gusts up to 23 mph 36 km/h.

Sunday, September 20, 2026

Mid-Morning
Onalaska Weather - 2026-09-20 - Morning - Cloudy
48°F 9°C
Cloudy
Mid-Afternoon
Onalaska Weather - 2026-09-20 - Afternoon - Sunny
62°F 17°C
Sunny
Early-Evening
Onalaska Weather - 2026-09-20 - Evening - Sunny
54°F 13°C
Sunny
Mildly cool near 62°F 17°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the SSE to the ESE at 7 mph 11 km/h.

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Weather by the Numbers

Mon, 7th
Onalaska WI Weather - Monday, Sep 7, 2026 - Overcast
Hi: 72°F 22°C
Lo: 62°F 17°C
Sunrise 06:35 AM
Sunset 07:30 PM
Wind SSE 11 mph18 km/h
Dew Point 52°F11°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 12% *
Humidity 51%
Tue, 8th
Onalaska WI Weather - Tuesday, Sep 8, 2026 - Patchy Rain Nearby
Hi: 80°F 27°C
Lo: 63°F 17°C
Sunrise 06:36 AM
Sunset 07:28 PM
Wind S 11 mph17 km/h
Dew Point 61°F16°C
uv Index 1
Barometric Pressure 29.97 in1015 mb
POP 23% *
Humidity 76%
Wed, 9th
Onalaska WI Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 87°F 31°C
Lo: 67°F 19°C
Sunrise 06:37 AM
Sunset 07:26 PM
Wind W 6 mph10 km/h
Dew Point 53°F12°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 39%
Thu, 10th
Onalaska WI Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 81°F 27°C
Lo: 59°F 15°C
Sunrise 06:39 AM
Sunset 07:25 PM
Wind NNW 5 mph9 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 36%
Fri, 11th
Onalaska WI Weather - Friday, Sep 11, 2026 - Light Rain Shower
Hi: 89°F 32°C
Lo: 59°F 15°C
Sunrise 06:40 AM
Sunset 07:23 PM
Wind SW 9 mph15 km/h
Dew Point 65°F18°C
uv Index 5
Barometric Pressure 29.77 in1008 mb
POP 65% *
Humidity 75%
Sat, 12th
Onalaska WI Weather - Saturday, Sep 12, 2026 - Patchy Rain Nearby
Hi: 69°F 21°C
Lo: 64°F 18°C
Sunrise 06:41 AM
Sunset 07:21 PM
Wind ESE 7 mph11 km/h
Dew Point 64°F18°C
uv Index 5
Barometric Pressure 29.74 in1007 mb
POP 59% *
Humidity 86%
Sun, 13th
Onalaska WI Weather - Sunday, Sep 13, 2026 - Moderate Or Heavy Rain Shower
Hi: 64°F 18°C
Lo: 51°F 11°C
Sunrise 06:42 AM
Sunset 07:19 PM
Wind NNW 9 mph14 km/h
Dew Point 53°F12°C
uv Index 3
Barometric Pressure 29.74 in1007 mb
POP 79% *
Humidity 99%
Mon, 14th
Onalaska WI Weather - Monday, Sep 14, 2026 - Sunny
Hi: 64°F 18°C
Lo: 48°F 9°C
Sunrise 06:43 AM
Sunset 07:17 PM
Wind NNW 13 mph21 km/h
Dew Point 42°F6°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 3% *
Humidity 54%
Tue, 15th
Onalaska WI Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 67°F 19°C
Lo: 45°F 7°C
Sunrise 06:44 AM
Sunset 07:15 PM
Wind S 6 mph10 km/h
Dew Point 42°F6°C
uv Index 5
Barometric Pressure 30.36 in1028 mb
POP 2% *
Humidity 47%
Wed, 16th
Onalaska WI Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 69°F 21°C
Lo: 49°F 9°C
Sunrise 06:45 AM
Sunset 07:13 PM
Wind S 14 mph22 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 30.3 in1026 mb
POP 2% *
Humidity 50%
Thu, 17th
Onalaska WI Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 72°F 22°C
Lo: 49°F 9°C
Sunrise 06:47 AM
Sunset 07:12 PM
Wind S 10 mph16 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 30.27 in1025 mb
POP 1% *
Humidity 44%
Fri, 18th
Onalaska WI Weather - Friday, Sep 18, 2026 - Sunny
Hi: 78°F 26°C
Lo: 52°F 11°C
Sunrise 06:48 AM
Sunset 07:10 PM
Wind SSW 14 mph23 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 2% *
Humidity 48%
Sat, 19th
Onalaska WI Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 79°F 26°C
Lo: 59°F 15°C
Sunrise 06:49 AM
Sunset 07:08 PM
Wind WNW 7 mph12 km/h
Dew Point 60°F16°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 11% *
Humidity 59%
Sun, 20th
Onalaska WI Weather - Sunday, Sep 20, 2026 - Overcast
Hi: 63°F 17°C
Lo: 42°F 5°C
Sunrise 06:50 AM
Sunset 07:06 PM
Wind ENE 8 mph13 km/h
Dew Point 32°F0°C
uv Index 3
Barometric Pressure 30.42 in1030 mb
POP 3% *
Humidity 40%
* POP = Probability of Precipitation. Data for 12:00 PM.