Current Conditions

Onalaska, Wisconsin

82°F28°C

Clear

Wind

SW 7 mph11 km/h

Humidity

65%

Cloud Cover

39%

As of Wednesday, September 2, 2026 at 1:54 PM CDT

Today's Outlook

Day

Partly cloudy and hot, with a high of 88°F31°C and morning low of 82°F28°C. Light wind from the SW around 6 mph10 km/h. Humid.

Night

Mostly clear, with a low around 78°F25°C. Light wind from the SE around 3 mph5 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 88°F31°CFeels 92°F33°C	Low 78°F25°C	Precip 0.01 in0.2 mm5%	Cloud 22%	Wind SW 5 mph8 km/h	Wednesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 82°F28°C. Light wind from the SW around 6 mph10 km/h. Humid. Wednesday Night: Mostly clear, with a low around 78°F25°C. Light wind from the SE around 3 mph5 km/h.
Showers	High 86°F30°CFeels 90°F32°C	Low 72°F22°C	Precip 0.14 in3.5 mm34%	Cloud 47%	Wind SSE 6 mph9 km/h	Thursday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 72°F22°C. Light wind from the S around 6 mph9 km/h. 34% chance of drizzle throughout the day. Humid. Thursday Night: Partly cloudy, with a low around 73°F23°C. Breezy from the SE at 5 to 7 mph9 to 11 km/h. 33% chance of showers throughout the night.
Showers	High 88°F31°CFeels 94°F34°C	Low 72°F22°C	Precip 0.21 in5.3 mm35%	Cloud 56%	Wind ESE 6 mph10 km/h	Friday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 72°F22°C. Light wind from the SE around 6 mph9 km/h. 30% chance of light rain throughout the day. Heavy, humid air. Friday Night: Partly cloudy, with a low around 72°F22°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h. 35% chance of showers throughout the night.
Showers	High 86°F30°CFeels 90°F32°C	Low 70°F21°C	Precip 0.06 in1.6 mm12%	Cloud 57%	Wind ESE 6 mph10 km/h	Saturday: Mostly cloudy and warm, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the ESE around 6 mph10 km/h. 10% chance of drizzle in the morning. Humid. Saturday Night: Partly cloudy, with a low around 72°F22°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. 12% chance of showers throughout the night.
Light Rain	High 82°F28°CFeels 85°F29°C	Low 69°F20°C	Precip 0.13 in3.3 mm20%	Cloud 71%	Wind SE 6 mph9 km/h	Sunday: Overcast and warm, with a high of 82°F28°C and morning low of 69°F20°C. Light wind from the SE around 6 mph9 km/h. 20% chance of light rain throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the SE around 6 mph9 km/h. 20% chance of drizzle throughout the night.
Light Rain	High 82°F28°C	Low 68°F20°C	Precip 0.1 in2.5 mm20%	Cloud 75%	Wind SSE 8 mph12 km/h	Monday: Overcast and warm, with a high of 82°F28°C and morning low of 68°F20°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 20% chance of light rain throughout the day. Humid. Monday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the SE at 7 to 10 mph12 to 15 km/h. 16% chance of drizzle throughout the night.
Showers	High 89°F31°CFeels 93°F34°C	Low 70°F21°C	Precip 0.17 in4.2 mm27%	Cloud 66%	Wind S 10 mph16 km/h	Tuesday: Mostly cloudy and hot, with a high of 89°F31°C and morning low of 70°F21°C. Breezy from the S at 11 mph17 km/h. 27% chance of showers throughout the day. Humid. Tuesday Night: Mostly cloudy, with a low around 71°F22°C. Breezy from the S at 10 mph15 km/h. 25% chance of showers throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	88°F31°C Feels 92°F33°C	78°F25°C	0.01 in0.2 mm· 5%	22%	Clear	SW 5 mph8 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 82°F28°C. Light wind from the SW around 6 mph10 km/h. Humid. NightMostly clear, with a low around 78°F25°C. Light wind from the SE around 3 mph5 km/h.
	ThursdaySep 3	86°F30°C Feels 90°F32°C	72°F22°C	0.14 in3.5 mm· 34%	47%	Showers	SSE 6 mph9 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 72°F22°C. Light wind from the S around 6 mph9 km/h. 34% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 73°F23°C. Breezy from the SE at 5 to 7 mph9 to 11 km/h. 33% chance of showers throughout the night.
	FridaySep 4	88°F31°C Feels 94°F34°C	72°F22°C	0.21 in5.3 mm· 35%	56%	Showers	ESE 6 mph10 km/h
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 72°F22°C. Light wind from the SE around 6 mph9 km/h. 30% chance of light rain throughout the day. Heavy, humid air. NightPartly cloudy, with a low around 72°F22°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h. 35% chance of showers throughout the night.
	SaturdaySep 5	86°F30°C Feels 90°F32°C	70°F21°C	0.06 in1.6 mm· 12%	57%	Showers	ESE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the ESE around 6 mph10 km/h. 10% chance of drizzle in the morning. Humid. NightPartly cloudy, with a low around 72°F22°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. 12% chance of showers throughout the night.
	SundaySep 6	82°F28°C Feels 85°F29°C	69°F20°C	0.13 in3.3 mm· 20%	71%	Light Rain	SE 6 mph9 km/h
DayOvercast and warm, with a high of 82°F28°C and morning low of 69°F20°C. Light wind from the SE around 6 mph9 km/h. 20% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Light wind from the SE around 6 mph9 km/h. 20% chance of drizzle throughout the night.
	MondaySep 7	82°F28°C	68°F20°C	0.1 in2.5 mm· 20%	75%	Light Rain	SSE 8 mph12 km/h
DayOvercast and warm, with a high of 82°F28°C and morning low of 68°F20°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 20% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the SE at 7 to 10 mph12 to 15 km/h. 16% chance of drizzle throughout the night.
	TuesdaySep 8	89°F31°C Feels 93°F34°C	70°F21°C	0.17 in4.2 mm· 27%	66%	Showers	S 10 mph16 km/h
DayMostly cloudy and hot, with a high of 89°F31°C and morning low of 70°F21°C. Breezy from the S at 11 mph17 km/h. 27% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the S at 10 mph15 km/h. 25% chance of showers throughout the night.
	WednesdaySep 9	85°F30°C	72°F22°C	0.21 in5.3 mm· 38%	55%	Showers	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 72°F22°C. Breezy from the WSW at 8 to 9 mph13 to 15 km/h. 28% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 73°F23°C. Breezy from the SW at 8 to 9 mph12 to 14 km/h. 38% chance of showers throughout the night.
	ThursdaySep 10	81°F27°C	66°F19°C	0.23 in5.8 mm· 31%	52%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Breezy from the WSW at 7 to 8 mph12 to 14 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the WSW at 7 mph11 km/h. 31% chance of showers throughout the night.
	FridaySep 11	79°F26°C	64°F18°C	0.23 in5.9 mm· 25%	56%	Showers	SSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 64°F18°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 7 to 8 mph12 to 12 km/h. 25% chance of showers throughout the night.
	SaturdaySep 12	77°F25°C	62°F17°C	0.2 in5.1 mm· 21%	57%	Showers	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 62°F17°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the SSW at 7 to 8 mph12 to 13 km/h. 21% chance of showers throughout the night.
	SundaySep 13	77°F25°C	61°F16°C	0.19 in4.8 mm· 23%	59%	Showers	S 8 mph13 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 61°F16°C. Breezy from the S at 9 to 10 mph14 to 16 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 63°F17°C. Breezy from the S at 8 mph12 km/h. 23% chance of showers throughout the night.
	MondaySep 14	76°F25°C	62°F16°C	0.24 in6.1 mm· 24%	54%	Showers	SSW 8 mph14 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 62°F16°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the SSW at 8 mph13 km/h. 24% chance of showers throughout the night.
	TuesdaySep 15	76°F24°C	59°F15°C	0.16 in4.1 mm· 19%	43%	Showers	SW 8 mph13 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 59°F15°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Breezy from the SW at 7 to 8 mph12 to 12 km/h. 19% chance of showers throughout the night.
	WednesdaySep 16	74°F24°C	58°F14°C	0.12 in3.1 mm· 16%	41%	Showers	WSW 7 mph12 km/h
DayPartly cloudy and warm, with a high of 74°F24°C and morning low of 58°F14°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 60°F15°C. Breezy from the WSW at 7 mph11 km/h. 16% chance of showers throughout the night.

Nearby Cities

North La Crosse3 mi4 km La Crosse6 mi9 km Winona23 mi37 km Rochester62 mi100 km Eau Claire65 mi105 km Marshfield76 mi122 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 43.8844°N, 91.2351°W·Elevation: 216m·Timezone: America/Chicago·Population: 18,468