Current Conditions

Sun Prairie, Wisconsin

75°F24°C

Drizzle

Wind

S 6 mph10 km/h

Humidity

69%

Cloud Cover

77%

As of Tuesday, September 8, 2026 at 6:03 PM CDT

Today's Outlook

Night

Overcast, with a low around 73°F23°C. Breezy from the S at 7 to 8 mph12 to 14 km/h. 42% chance of drizzle throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 77°F25°C	Low 72°F22°C	Precip 0.05 in1.2 mm42%	Cloud 86%	Wind S 8 mph14 km/h	Tuesday: Overcast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the SSE at 9 to 10 mph15 to 16 km/h. 39% chance of drizzle throughout the day. Tuesday Night: Overcast, with a low around 73°F23°C. Breezy from the S at 7 to 8 mph12 to 14 km/h. 42% chance of drizzle throughout the night.
Rain	High 83°F28°C	Low 70°F21°C	Precip 0.51 in13 mm97%	Cloud 69%	Wind WSW 8 mph12 km/h	Wednesday: Mostly cloudy and warm, with a high of 83°F28°C and morning low of 71°F21°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 91% chance of rain in the morning. Humid. Wednesday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. 97% chance of rain overnight.
Clear	High 77°F25°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 34%	Wind NNW 4 mph7 km/h	Thursday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 59°F15°C. Light wind from the NNW around 4 mph7 km/h. Thursday Night: Partly cloudy, with a low around 62°F16°C. Light wind from the NNW around 4 mph7 km/h.
Clear	High 82°F28°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 9%	Wind S 7 mph12 km/h	Friday: Mostly clear and warm, with a high of 82°F28°C and morning low of 57°F14°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. Friday Night: Mostly clear, with a low around 57°F14°C. Breezy from the S at 7 to 9 mph11 to 14 km/h.
Drizzle	High 80°F26°C	Low 65°F18°C	Precip 0.05 in1.2 mm23%	Cloud 49%	Wind WSW 9 mph14 km/h	Saturday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 65°F19°C. Breezy from the W at 9 to 10 mph15 to 17 km/h. 23% chance of drizzle throughout the day. Saturday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h.
Showers	High 71°F21°C	Low 55°F13°C	Precip 0.06 in1.6 mm15%	Cloud 36%	Wind NNW 7 mph10 km/h	Sunday: Partly cloudy and warm, with a high of 71°F21°C and morning low of 55°F13°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. 15% chance of showers around midday. Dry air. Sunday Night: Partly cloudy, with a low around 58°F14°C. Light wind from the NNW around 6 mph9 km/h. 15% chance of drizzle in the evening.
Showers	High 73°F23°C	Low 54°F12°C	Precip 0.3 in7.6 mm37%	Cloud 65%	Wind SE 9 mph15 km/h	Monday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 54°F12°C. Breezy from the SE at 9 to 11 mph15 to 18 km/h. 37% chance of light rain throughout the day. Monday Night: Mostly cloudy, with a low around 54°F12°C. Breezy from the SSE at 9 to 12 mph14 to 20 km/h. 27% chance of showers throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	77°F25°C	72°F22°C	0.05 in1.2 mm· 42%	86%	Drizzle	S 8 mph14 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the SSE at 9 to 10 mph15 to 16 km/h. 39% chance of drizzle throughout the day. NightOvercast, with a low around 73°F23°C. Breezy from the S at 7 to 8 mph12 to 14 km/h. 42% chance of drizzle throughout the night.
	WednesdaySep 9	83°F28°C	70°F21°C	0.51 in13 mm· 97%	69%	Rain	WSW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 71°F21°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 91% chance of rain in the morning. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. 97% chance of rain overnight.
	ThursdaySep 10	77°F25°C	59°F15°C	0 in0 mm· —	34%	Clear	NNW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 59°F15°C. Light wind from the NNW around 4 mph7 km/h. NightPartly cloudy, with a low around 62°F16°C. Light wind from the NNW around 4 mph7 km/h.
	FridaySep 11	82°F28°C	57°F14°C	0 in0 mm· —	9%	Clear	S 7 mph12 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 57°F14°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. NightMostly clear, with a low around 57°F14°C. Breezy from the S at 7 to 9 mph11 to 14 km/h.
	SaturdaySep 12	80°F26°C	65°F18°C	0.05 in1.2 mm· 23%	49%	Drizzle	WSW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 65°F19°C. Breezy from the W at 9 to 10 mph15 to 17 km/h. 23% chance of drizzle throughout the day. NightPartly cloudy, with a low around 65°F18°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h.
	SundaySep 13	71°F21°C	55°F13°C	0.06 in1.6 mm· 15%	36%	Showers	NNW 7 mph10 km/h
DayPartly cloudy and warm, with a high of 71°F21°C and morning low of 55°F13°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. 15% chance of showers around midday. Dry air. NightPartly cloudy, with a low around 58°F14°C. Light wind from the NNW around 6 mph9 km/h. 15% chance of drizzle in the evening.
	MondaySep 14	73°F23°C	54°F12°C	0.3 in7.6 mm· 37%	65%	Showers	SE 9 mph15 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 54°F12°C. Breezy from the SE at 9 to 11 mph15 to 18 km/h. 37% chance of light rain throughout the day. NightMostly cloudy, with a low around 54°F12°C. Breezy from the SSE at 9 to 12 mph14 to 20 km/h. 27% chance of showers throughout the night.
	TuesdaySep 15	76°F24°C	64°F18°C	0.21 in5.3 mm· 43%	71%	Light Rain	SW 10 mph16 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 65°F18°C. Breezy from the WSW at 11 mph17 km/h. 37% chance of light rain throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the SW at 9 to 13 mph15 to 20 km/h. 43% chance of showers throughout the night.
	WednesdaySep 16	73°F23°C	57°F14°C	0.11 in2.9 mm· 19%	60%	Showers	ESE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 57°F14°C. Breezy from the ESE at 7 mph11 km/h. 16% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F15°C. Breezy from the E at 6 to 7 mph10 to 12 km/h. 19% chance of showers throughout the night.
	ThursdaySep 17	77°F25°C	63°F17°C	0.44 in11.3 mm· 45%	65%	Rain	S 9 mph14 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 43% chance of rain throughout the day. NightMostly cloudy, with a low around 63°F17°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 45% chance of showers throughout the night.
	FridaySep 18	72°F22°C	60°F16°C	0.25 in6.3 mm· 25%	57%	Showers	W 8 mph13 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 60°F16°C. Breezy from the W at 8 to 9 mph14 to 15 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 25% chance of showers throughout the night.
	SaturdaySep 19	69°F20°C	56°F13°C	0.24 in6 mm· 31%	58%	Showers	NW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 56°F13°C. Breezy from the WNW at 8 to 9 mph14 to 15 km/h. 24% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the NW at 7 to 8 mph12 to 12 km/h. 31% chance of showers throughout the night.
	SundaySep 20	66°F19°C	52°F11°C	0.11 in2.9 mm· 17%	53%	Showers	NNW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 52°F11°C. Breezy from the NNW at 8 to 9 mph13 to 14 km/h. 15% chance of showers throughout the day. Dry air. NightPartly cloudy, with a low around 54°F12°C. Breezy from the NNW at 7 mph11 km/h. 17% chance of showers throughout the night.
	MondaySep 21	67°F19°C	48°F9°C	0.05 in1.2 mm· 12%	47%	Drizzle	N 7 mph11 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 48°F9°C. Breezy from the NNW at 7 to 8 mph12 to 13 km/h. Dry air. NightPartly cloudy, with a low around 51°F10°C. Breezy from the NNE at 7 mph11 km/h. 12% chance of drizzle overnight.
	TuesdaySep 22	69°F20°C	49°F10°C Feels 46°F8°C	0.09 in2.4 mm· 11%	47%	Drizzle	S 7 mph12 km/h
DayPartly cloudy and warm, with a high of 69°F20°C and morning low of 49°F10°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 11% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 51°F10°C. Breezy from the SSE at 7 mph11 km/h. 11% chance of drizzle throughout the night.

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