Current Conditions

Belvidere, Illinois

80°F27°C

Partly Cloudy

Wind

S 7 mph12 km/h

Humidity

55%

Cloud Cover

58%

As of Tuesday, September 8, 2026 at 6:58 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 76°F24°C. Breezy from the S at 8 mph12 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 82°F28°C	Low 76°F24°C	Precip 0 in0.1 mm5%	Cloud 74%	Wind S 8 mph13 km/h	Tuesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 77°F25°C. Breezy from the SSE at 9 to 11 mph14 to 18 km/h. Tuesday Night: Mostly cloudy, with a low around 76°F24°C. Breezy from the S at 8 mph12 km/h.
Rain	High 81°F27°CFeels 84°F29°C	Low 71°F22°C	Precip 0.56 in14.1 mm99%	Cloud 84%	Wind WSW 8 mph12 km/h	Wednesday: Overcast and warm, with a high of 81°F27°C and morning low of 71°F22°C. Breezy from the WSW at 8 to 9 mph14 to 15 km/h. 99% chance of rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 71°F22°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. 86% chance of light rain overnight.
Partly Cloudy	High 79°F26°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 54%	Wind N 5 mph8 km/h	Thursday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 64°F18°C. Light wind from the NNE around 5 mph8 km/h. Thursday Night: Partly cloudy, with a low around 64°F18°C. Light wind from the N around 5 mph8 km/h.
Clear	High 82°F28°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 12%	Wind SSE 6 mph10 km/h	Friday: Mostly clear and warm, with a high of 82°F28°C and morning low of 57°F14°C. Breezy from the SSE at 7 to 8 mph11 to 12 km/h. Friday Night: Mostly clear, with a low around 58°F14°C. Breezy from the SSE at 6 to 8 mph9 to 12 km/h.
Drizzle	High 83°F29°C	Low 65°F18°C	Precip 0.03 in0.8 mm12%	Cloud 45%	Wind WSW 8 mph13 km/h	Saturday: Mostly cloudy and warm, with a high of 83°F29°C and morning low of 65°F18°C. Breezy from the WSW at 9 to 10 mph14 to 16 km/h. 12% chance of drizzle throughout the day. Saturday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. 10% chance of drizzle in the evening.
Drizzle	High 74°F23°C	Low 58°F15°C	Precip 0.03 in0.7 mm12%	Cloud 35%	Wind NNW 7 mph11 km/h	Sunday: Partly cloudy and warm, with a high of 74°F23°C and morning low of 58°F15°C. Breezy from the NNW at 8 mph12 km/h. 12% chance of drizzle around midday. Dry air. Sunday Night: Partly cloudy, with a low around 61°F16°C. Breezy from the N at 6 to 7 mph10 to 11 km/h.
Showers	High 77°F25°C	Low 56°F13°C	Precip 0.19 in4.9 mm27%	Cloud 57%	Wind SE 9 mph14 km/h	Monday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 56°F13°C. Breezy from the SE at 9 to 11 mph15 to 18 km/h. 27% chance of showers throughout the day. Monday Night: Mostly cloudy, with a low around 56°F14°C. Breezy from the SE at 9 to 12 mph14 to 20 km/h. 15% chance of drizzle throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	82°F28°C	76°F24°C	0 in0.1 mm· 5%	74%	Partly Cloudy	S 8 mph13 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 77°F25°C. Breezy from the SSE at 9 to 11 mph14 to 18 km/h. NightMostly cloudy, with a low around 76°F24°C. Breezy from the S at 8 mph12 km/h.
	WednesdaySep 9	81°F27°C Feels 84°F29°C	71°F22°C	0.56 in14.1 mm· 99%	84%	Rain	WSW 8 mph12 km/h
DayOvercast and warm, with a high of 81°F27°C and morning low of 71°F22°C. Breezy from the WSW at 8 to 9 mph14 to 15 km/h. 99% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. 86% chance of light rain overnight.
	ThursdaySep 10	79°F26°C	64°F18°C	0 in0 mm· —	54%	Partly Cloudy	N 5 mph8 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 64°F18°C. Light wind from the NNE around 5 mph8 km/h. NightPartly cloudy, with a low around 64°F18°C. Light wind from the N around 5 mph8 km/h.
	FridaySep 11	82°F28°C	57°F14°C	0 in0 mm· —	12%	Clear	SSE 6 mph10 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 57°F14°C. Breezy from the SSE at 7 to 8 mph11 to 12 km/h. NightMostly clear, with a low around 58°F14°C. Breezy from the SSE at 6 to 8 mph9 to 12 km/h.
	SaturdaySep 12	83°F29°C	65°F18°C	0.03 in0.8 mm· 12%	45%	Drizzle	WSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 83°F29°C and morning low of 65°F18°C. Breezy from the WSW at 9 to 10 mph14 to 16 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. 10% chance of drizzle in the evening.
	SundaySep 13	74°F23°C	58°F15°C	0.03 in0.7 mm· 12%	35%	Drizzle	NNW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 58°F15°C. Breezy from the NNW at 8 mph12 km/h. 12% chance of drizzle around midday. Dry air. NightPartly cloudy, with a low around 61°F16°C. Breezy from the N at 6 to 7 mph10 to 11 km/h.
	MondaySep 14	77°F25°C	56°F13°C	0.19 in4.9 mm· 27%	57%	Showers	SE 9 mph14 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 56°F13°C. Breezy from the SE at 9 to 11 mph15 to 18 km/h. 27% chance of showers throughout the day. NightMostly cloudy, with a low around 56°F14°C. Breezy from the SE at 9 to 12 mph14 to 20 km/h. 15% chance of drizzle throughout the night.
	TuesdaySep 15	80°F27°C	67°F19°C	0.15 in3.9 mm· 21%	70%	Light Rain	SW 10 mph17 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 67°F19°C. Breezy from the SW at 11 to 12 mph18 to 19 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SSW at 10 to 13 mph15 to 20 km/h. 21% chance of light rain throughout the night.
	WednesdaySep 16	77°F25°C	61°F16°C	0.17 in4.2 mm· 21%	61%	Showers	E 7 mph11 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 61°F16°C. Breezy from the E at 7 mph11 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 62°F17°C. Breezy from the E at 7 to 8 mph11 to 12 km/h. 20% chance of showers throughout the night.
	ThursdaySep 17	81°F27°C	66°F19°C	0.21 in5.4 mm· 36%	61%	Showers	S 9 mph15 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Breezy from the SSW at 10 to 11 mph16 to 17 km/h. 36% chance of showers throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the S at 8 to 9 mph13 to 14 km/h. 33% chance of showers throughout the night.
	FridaySep 18	75°F24°C	64°F18°C	0.19 in4.9 mm· 23%	52%	Showers	W 9 mph15 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 64°F18°C. Breezy from the W at 10 mph16 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the WSW at 8 to 10 mph14 to 15 km/h. 23% chance of showers throughout the night.
	SaturdaySep 19	71°F22°C	57°F14°C	0.22 in5.6 mm· 23%	56%	Showers	WNW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 57°F14°C. Breezy from the WNW at 9 mph14 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the NW at 7 to 8 mph12 to 12 km/h. 23% chance of showers throughout the night.
	SundaySep 20	69°F20°C	53°F12°C	0.13 in3.4 mm· 19%	53%	Showers	NNW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 53°F12°C. Breezy from the NNW at 8 to 9 mph13 to 14 km/h. 13% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 55°F13°C. Breezy from the NNW at 7 mph11 km/h. 19% chance of showers throughout the night.
	MondaySep 21	69°F21°C	51°F10°C	0.08 in2.1 mm· 12%	51%	Showers	NNE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 51°F10°C. Breezy from the N at 7 to 8 mph12 to 13 km/h. 12% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 52°F11°C. Breezy from the NE at 7 mph11 km/h. 11% chance of showers throughout the night.
	TuesdaySep 22	70°F21°C	51°F10°C	0.07 in1.8 mm· 12%	50%	Drizzle	SSE 7 mph12 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 51°F10°C. Breezy from the SSW at 8 mph12 km/h. 12% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 52°F11°C. Breezy from the SE at 7 mph11 km/h. 11% chance of drizzle throughout the night.

Nearby Cities

Machesney Park11 mi19 km Loves Park12 mi19 km Rockford13 mi21 km Beloit19 mi31 km Woodstock21 mi33 km Sycamore21 mi33 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: 42.2639°N, 88.8443°W·Elevation: 238m·Timezone: America/Chicago·Population: 25,132