Current Conditions

Sun Prairie, Wisconsin

51°F11°C

Clear

Wind

NE 7 mph12 km/h

Humidity

84%

Cloud Cover

As of Tuesday, September 22, 2026 at 11:01 PM CDT

Today's Outlook

Night

Mostly clear, with a low around 48°F9°C. Light wind from the ENE around 6 mph10 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 68°F20°C	Low 47°F9°CFeels 44°F7°C	Precip 0 in0 mm—	Cloud 38%	Wind ENE 7 mph11 km/h	Wednesday: Mostly cloudy and mild, with a high of 68°F20°C and morning low of 47°F9°C. Breezy from the ENE at 8 to 9 mph13 to 14 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 48°F9°C. Light wind from the ENE around 6 mph10 km/h.
Partly Cloudy	High 70°F21°C	Low 49°F10°C	Precip 0 in0 mm—	Cloud 53%	Wind E 6 mph9 km/h	Thursday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 49°F10°C. Light wind from the E around 6 mph9 km/h. Thursday Night: Mostly cloudy, with a low around 51°F10°C. Light wind from the E around 5 mph9 km/h.
Drizzle	High 69°F21°C	Low 55°F13°C	Precip 0.01 in0.3 mm13%	Cloud 87%	Wind E 5 mph7 km/h	Friday: Overcast and warm, with a high of 69°F21°C and morning low of 56°F13°C. Light wind from the E around 5 mph7 km/h. 13% chance of drizzle. Friday Night: Overcast, with a low around 55°F13°C. Light wind from the E around 4 mph7 km/h.
Drizzle	High 68°F20°C	Low 51°F11°C	Precip 0.02 in0.5 mm11%	Cloud 87%	Wind ESE 6 mph9 km/h	Saturday: Overcast and warm, with a high of 68°F20°C and morning low of 51°F11°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. Saturday Night: Overcast, with a low around 52°F11°C. Light wind from the ESE around 5 mph8 km/h. 11% chance of drizzle overnight.
Drizzle	High 68°F20°C	Low 52°F11°C	Precip 0.04 in1.1 mm21%	Cloud 74%	Wind E 4 mph6 km/h	Sunday: Mostly cloudy and warm, with a high of 68°F20°C and morning low of 52°F11°C. Light wind from the E around 3 mph5 km/h. 20% chance of drizzle throughout the day. Sunday Night: Mostly cloudy, with a low around 53°F12°C. Light wind from the E around 4 mph6 km/h. 21% chance of drizzle overnight.
Partly Cloudy	High 72°F22°C	Low 52°F11°C	Precip 0 in0 mm—	Cloud 46%	Wind E 4 mph6 km/h	Monday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 52°F11°C. Light wind from the ESE around 3 mph5 km/h. Monday Night: Partly cloudy, with a low around 54°F12°C. Light wind from the E around 4 mph7 km/h.
Light Rain	High 70°F21°C	Low 54°F12°C	Precip 0.12 in3 mm38%	Cloud 82%	Wind SSE 7 mph12 km/h	Tuesday: Overcast and warm, with a high of 70°F21°C and morning low of 54°F12°C. Breezy from the SSE at 8 to 9 mph12 to 14 km/h. 26% chance of light rain throughout the day. Tuesday Night: Mostly cloudy, with a low around 54°F12°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 38% chance of light rain in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	68°F20°C	47°F9°C Feels 44°F7°C	0 in0 mm· —	38%	Clear	ENE 7 mph11 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 47°F9°C. Breezy from the ENE at 8 to 9 mph13 to 14 km/h. Dry air. NightMostly clear, with a low around 48°F9°C. Light wind from the ENE around 6 mph10 km/h.
	ThursdaySep 24	70°F21°C	49°F10°C	0 in0 mm· —	53%	Partly Cloudy	E 6 mph9 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 49°F10°C. Light wind from the E around 6 mph9 km/h. NightMostly cloudy, with a low around 51°F10°C. Light wind from the E around 5 mph9 km/h.
	FridaySep 25	69°F21°C	55°F13°C	0.01 in0.3 mm· 13%	87%	Drizzle	E 5 mph7 km/h
DayOvercast and warm, with a high of 69°F21°C and morning low of 56°F13°C. Light wind from the E around 5 mph7 km/h. 13% chance of drizzle. NightOvercast, with a low around 55°F13°C. Light wind from the E around 4 mph7 km/h.
	SaturdaySep 26	68°F20°C	51°F11°C	0.02 in0.5 mm· 11%	87%	Drizzle	ESE 6 mph9 km/h
DayOvercast and warm, with a high of 68°F20°C and morning low of 51°F11°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. NightOvercast, with a low around 52°F11°C. Light wind from the ESE around 5 mph8 km/h. 11% chance of drizzle overnight.
	SundaySep 27	68°F20°C	52°F11°C	0.04 in1.1 mm· 21%	74%	Drizzle	E 4 mph6 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 52°F11°C. Light wind from the E around 3 mph5 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 53°F12°C. Light wind from the E around 4 mph6 km/h. 21% chance of drizzle overnight.
	MondaySep 28	72°F22°C	52°F11°C	0 in0 mm· —	46%	Partly Cloudy	E 4 mph6 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 52°F11°C. Light wind from the ESE around 3 mph5 km/h. NightPartly cloudy, with a low around 54°F12°C. Light wind from the E around 4 mph7 km/h.
	TuesdaySep 29	70°F21°C	54°F12°C	0.12 in3 mm· 38%	82%	Light Rain	SSE 7 mph12 km/h
DayOvercast and warm, with a high of 70°F21°C and morning low of 54°F12°C. Breezy from the SSE at 8 to 9 mph12 to 14 km/h. 26% chance of light rain throughout the day. NightMostly cloudy, with a low around 54°F12°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 38% chance of light rain in the evening.
	WednesdaySep 30	68°F20°C	58°F15°C	0.31 in7.9 mm· 40%	82%	Light Rain	S 8 mph13 km/h
DayOvercast and mild, with a high of 68°F20°C and morning low of 58°F15°C. Breezy from the SSW at 8 to 9 mph14 to 15 km/h. 38% chance of light rain throughout the day. NightOvercast, with a low around 59°F15°C. Breezy from the S at 8 mph12 km/h. 40% chance of light rain throughout the night.
	ThursdayOct 1	67°F20°C	54°F12°C	0.17 in4.2 mm· 25%	59%	Showers	W 8 mph13 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 54°F12°C. Breezy from the W at 9 to 10 mph15 to 16 km/h. 25% chance of showers throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the W at 8 mph12 km/h. 25% chance of showers throughout the night.
	FridayOct 2	68°F20°C	53°F12°C	0.1 in2.5 mm· 19%	58%	Drizzle	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 53°F12°C. Breezy from the WSW at 9 mph14 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Breezy from the SSW at 7 mph12 km/h. 18% chance of drizzle throughout the night.
	SaturdayOct 3	68°F20°C	54°F12°C	0.12 in3.1 mm· 24%	69%	Showers	SSW 8 mph14 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 54°F12°C. Breezy from the SSW at 9 to 10 mph14 to 16 km/h. 23% chance of light rain throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 24% chance of showers throughout the night.
	SundayOct 4	63°F17°C	52°F11°C	0.17 in4.4 mm· 30%	60%	Showers	W 10 mph16 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 52°F11°C. Breezy from the W at 11 to 12 mph17 to 19 km/h. 30% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the WSW at 9 mph14 km/h. 27% chance of showers throughout the night.
	MondayOct 5	62°F17°C	48°F9°C Feels 44°F7°C	0.08 in2 mm· 14%	55%	Drizzle	W 9 mph15 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 48°F9°C. Breezy from the W at 10 to 11 mph16 to 18 km/h. 14% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 49°F10°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 11% chance of drizzle throughout the night.
	TuesdayOct 6	62°F16°C	47°F8°C Feels 43°F6°C	0.08 in2 mm· 16%	49%	Drizzle	WNW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 62°F16°C and morning low of 47°F8°C. Breezy from the WNW at 9 to 10 mph14 to 16 km/h. 15% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 48°F9°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 16% chance of drizzle throughout the night.
	WednesdayOct 7	63°F17°C	45°F7°C Feels 41°F5°C	0.04 in1 mm· 11%	37%	Drizzle	WNW 8 mph13 km/h
DayPartly cloudy and mild, with a high of 63°F17°C and morning low of 45°F7°C. Breezy from the WNW at 9 to 10 mph14 to 15 km/h. 11% chance of drizzle in the morning. Dry air. NightPartly cloudy, with a low around 46°F8°C. Breezy from the WNW at 7 mph12 km/h.

Nearby Cities

Madison12 mi20 km Middleton16 mi25 km Fitchburg20 mi32 km Watertown24 mi39 km Beaver Dam27 mi43 km Janesville36 mi58 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.

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Coordinates: 43.1836°N, 89.2137°W·Elevation: 292m·Timezone: America/Chicago·Population: 32,365