Current Conditions

Janesville, Wisconsin

53°F12°C

Partly Cloudy

Wind

NE 7 mph12 km/h

Humidity

81%

Cloud Cover

28%

As of Tuesday, September 22, 2026 at 9:53 PM CDT

Today's Outlook

Night

Partly cloudy, with a low around 51°F11°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 67°F19°C	Low 51°F10°C	Precip 0 in0 mm—	Cloud 51%	Wind ENE 8 mph12 km/h	Wednesday: Mostly cloudy and mild, with a high of 67°F19°C and morning low of 51°F10°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h. Wednesday Night: Partly cloudy, with a low around 51°F11°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h.
Partly Cloudy	High 69°F21°C	Low 51°F11°C	Precip 0 in0 mm—	Cloud 50%	Wind ENE 6 mph10 km/h	Thursday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 51°F11°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h. Thursday Night: Mostly cloudy, with a low around 53°F12°C. Light wind from the ENE around 6 mph9 km/h.
Drizzle	High 69°F20°C	Low 56°F13°C	Precip 0.01 in0.3 mm12%	Cloud 87%	Wind E 5 mph8 km/h	Friday: Overcast and warm, with a high of 69°F20°C and morning low of 57°F14°C. Light wind from the E around 5 mph8 km/h. 12% chance of drizzle. Friday Night: Overcast, with a low around 56°F13°C. Light wind from the E around 5 mph7 km/h.
Drizzle	High 68°F20°C	Low 53°F12°C	Precip 0.02 in0.4 mm16%	Cloud 88%	Wind ESE 5 mph9 km/h	Saturday: Overcast and mild, with a high of 68°F20°C and morning low of 53°F12°C. Light wind from the ESE around 6 mph9 km/h. Saturday Night: Overcast, with a low around 54°F12°C. Light wind from the E around 5 mph8 km/h. 16% chance of drizzle overnight.
Drizzle	High 69°F20°C	Low 53°F12°C	Precip 0.04 in1.1 mm24%	Cloud 75%	Wind ENE 4 mph6 km/h	Sunday: Mostly cloudy and warm, with a high of 69°F20°C and morning low of 53°F12°C. Light wind from the ENE around 3 mph5 km/h. 20% chance of drizzle throughout the day. Sunday Night: Mostly cloudy, with a low around 54°F12°C. Light wind from the ENE around 4 mph6 km/h. 24% chance of drizzle overnight.
Partly Cloudy	High 72°F22°C	Low 52°F11°C	Precip 0 in0 mm—	Cloud 44%	Wind E 3 mph5 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 ENE around 3 mph5 km/h. Monday Night: Partly cloudy, with a low around 54°F12°C. Light wind from the E around 4 mph6 km/h.
Light Rain	High 71°F22°C	Low 54°F12°C	Precip 0.09 in2.2 mm34%	Cloud 81%	Wind SSE 7 mph11 km/h	Tuesday: Overcast and warm, with a high of 71°F22°C and morning low of 54°F12°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 19% chance of drizzle around midday. Tuesday Night: Mostly cloudy, with a low around 54°F12°C. Breezy from the SSE at 6 to 8 mph10 to 13 km/h. 34% chance of light rain in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	67°F19°C	51°F10°C	0 in0 mm· —	51%	Partly Cloudy	ENE 8 mph12 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 51°F10°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h. NightPartly cloudy, with a low around 51°F11°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h.
	ThursdaySep 24	69°F21°C	51°F11°C	0 in0 mm· —	50%	Partly Cloudy	ENE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 51°F11°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h. NightMostly cloudy, with a low around 53°F12°C. Light wind from the ENE around 6 mph9 km/h.
	FridaySep 25	69°F20°C	56°F13°C	0.01 in0.3 mm· 12%	87%	Drizzle	E 5 mph8 km/h
DayOvercast and warm, with a high of 69°F20°C and morning low of 57°F14°C. Light wind from the E around 5 mph8 km/h. 12% chance of drizzle. NightOvercast, with a low around 56°F13°C. Light wind from the E around 5 mph7 km/h.
	SaturdaySep 26	68°F20°C	53°F12°C	0.02 in0.4 mm· 16%	88%	Drizzle	ESE 5 mph9 km/h
DayOvercast and mild, with a high of 68°F20°C and morning low of 53°F12°C. Light wind from the ESE around 6 mph9 km/h. NightOvercast, with a low around 54°F12°C. Light wind from the E around 5 mph8 km/h. 16% chance of drizzle overnight.
	SundaySep 27	69°F20°C	53°F12°C	0.04 in1.1 mm· 24%	75%	Drizzle	ENE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 53°F12°C. Light wind from the ENE around 3 mph5 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Light wind from the ENE around 4 mph6 km/h. 24% chance of drizzle overnight.
	MondaySep 28	72°F22°C	52°F11°C	0 in0 mm· —	44%	Partly Cloudy	E 3 mph5 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 52°F11°C. Light wind from the ENE around 3 mph5 km/h. NightPartly cloudy, with a low around 54°F12°C. Light wind from the E around 4 mph6 km/h.
	TuesdaySep 29	71°F22°C	54°F12°C	0.09 in2.2 mm· 34%	81%	Light Rain	SSE 7 mph11 km/h
DayOvercast and warm, with a high of 71°F22°C and morning low of 54°F12°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 19% chance of drizzle around midday. NightMostly cloudy, with a low around 54°F12°C. Breezy from the SSE at 6 to 8 mph10 to 13 km/h. 34% chance of light rain in the evening.
	WednesdaySep 30	67°F19°C	59°F15°C	0.37 in9.3 mm· 42%	80%	Light Rain	SSE 8 mph13 km/h
DayOvercast and mild, with a high of 67°F19°C and morning low of 59°F15°C. Breezy from the S at 9 mph14 km/h. 42% chance of light rain throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the SSE at 8 mph13 km/h. 41% chance of light rain throughout the night.
	ThursdayOct 1	67°F20°C	55°F13°C	0.19 in4.9 mm· 27%	65%	Showers	WNW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 55°F13°C. Breezy from the WNW at 8 to 9 mph14 to 15 km/h. 27% chance of showers throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. 27% chance of showers throughout the night.
	FridayOct 2	68°F20°C	53°F12°C	0.11 in2.9 mm· 18%	60%	Showers	WSW 7 mph12 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 53°F12°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 17% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the SW at 7 mph11 km/h. 18% chance of showers throughout the night.
	SaturdayOct 3	68°F20°C	54°F12°C	0.11 in2.9 mm· 19%	65%	Showers	SSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 54°F12°C. Breezy from the SW at 8 to 10 mph14 to 16 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the SSW at 8 to 9 mph12 to 14 km/h. 19% chance of showers throughout the night.
	SundayOct 4	65°F18°C	53°F11°C	0.15 in3.8 mm· 25%	60%	Showers	WSW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 53°F11°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 25% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 55°F13°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 21% chance of showers throughout the night.
	MondayOct 5	64°F18°C	50°F10°C Feels 46°F8°C	0.11 in2.7 mm· 17%	53%	Drizzle	WSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 50°F10°C. Breezy from the W at 9 to 10 mph14 to 15 km/h. 14% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 51°F11°C. Breezy from the WSW at 8 mph12 km/h. 17% chance of drizzle throughout the night.
	TuesdayOct 6	66°F19°C	49°F9°C Feels 46°F8°C	0.07 in1.7 mm· 12%	45%	Drizzle	WSW 8 mph13 km/h
DayPartly cloudy and mild, with a high of 66°F19°C and morning low of 49°F9°C. Breezy from the WSW at 9 to 10 mph14 to 15 km/h. 12% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 50°F10°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 12% chance of drizzle throughout the night.
	WednesdayOct 7	65°F18°C	48°F9°C Feels 45°F7°C	0.08 in2 mm· 13%	46%	Showers	WNW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 48°F9°C. Breezy from the NW at 9 mph14 km/h. 13% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 50°F10°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 12% chance of showers throughout the night.

Nearby Cities

Beloit12 mi19 km Machesney Park23 mi37 km Loves Park25 mi40 km Rockford29 mi46 km Fitchburg30 mi48 km Belvidere30 mi49 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: 42.6828°N, 89.0187°W·Elevation: 255m·Timezone: America/Chicago·Population: 64,123