Current Conditions

McHenry, Illinois

57°F14°C

Partly Cloudy

Wind

NE 8 mph14 km/h

Humidity

78%

Cloud Cover

52%

As of Tuesday, September 22, 2026 at 10:35 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 55°F13°C. Breezy from the ENE at 8 to 9 mph12 to 14 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 64°F18°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 63%	Wind ENE 9 mph14 km/h	Wednesday: Mostly cloudy and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the ENE at 10 to 11 mph16 to 18 km/h. Wednesday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the ENE at 8 to 9 mph12 to 14 km/h.
Partly Cloudy	High 66°F19°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 44%	Wind ENE 6 mph10 km/h	Thursday: Partly cloudy and mild, with a high of 66°F19°C and morning low of 55°F13°C. Breezy from the ENE at 7 to 8 mph12 to 13 km/h. Thursday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the ENE around 6 mph9 km/h.
Cloudy	High 67°F19°C	Low 57°F14°C	Precip 0 in0.1 mm7%	Cloud 81%	Wind E 5 mph8 km/h	Friday: Overcast and mild, with a high of 67°F19°C and morning low of 57°F14°C. Breezy from the E at 5 to 7 mph9 to 11 km/h. Friday Night: Overcast, with a low around 57°F14°C. Light wind from the ENE around 5 mph7 km/h.
Cloudy	High 67°F19°C	Low 54°F12°C	Precip 0.01 in0.2 mm6%	Cloud 82%	Wind E 5 mph8 km/h	Saturday: Overcast and mild, with a high of 67°F19°C and morning low of 54°F12°C. Light wind from the ESE around 6 mph9 km/h. Saturday Night: Overcast, with a low around 56°F13°C. Light wind from the E around 5 mph8 km/h.
Drizzle	High 69°F21°C	Low 55°F13°C	Precip 0.04 in0.9 mm18%	Cloud 71%	Wind ENE 4 mph6 km/h	Sunday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 55°F13°C. Light wind from the ENE around 4 mph6 km/h. 18% chance of drizzle in the morning. Sunday Night: Mostly cloudy, with a low around 55°F13°C. Light wind from the ENE around 4 mph6 km/h. 18% chance of drizzle overnight.
Clear	High 72°F22°C	Low 53°F12°C	Precip 0 in0 mm—	Cloud 35%	Wind ENE 4 mph6 km/h	Monday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 53°F12°C. Light wind from the NE around 3 mph5 km/h. Monday Night: Partly cloudy, with a low around 55°F13°C. Light wind from the ENE around 4 mph7 km/h.
Light Rain	High 72°F22°C	Low 54°F12°C	Precip 0.07 in1.7 mm30%	Cloud 77%	Wind SSE 6 mph10 km/h	Tuesday: Overcast and warm, with a high of 72°F22°C and morning low of 54°F12°C. Breezy from the S at 6 to 8 mph10 to 12 km/h. 13% chance of drizzle around midday. Tuesday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. 30% chance of light rain in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	64°F18°C	55°F13°C	0 in0 mm· —	63%	Partly Cloudy	ENE 9 mph14 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the ENE at 10 to 11 mph16 to 18 km/h. NightMostly cloudy, with a low around 55°F13°C. Breezy from the ENE at 8 to 9 mph12 to 14 km/h.
	ThursdaySep 24	66°F19°C	55°F13°C	0 in0 mm· —	44%	Partly Cloudy	ENE 6 mph10 km/h
DayPartly cloudy and mild, with a high of 66°F19°C and morning low of 55°F13°C. Breezy from the ENE at 7 to 8 mph12 to 13 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the ENE around 6 mph9 km/h.
	FridaySep 25	67°F19°C	57°F14°C	0 in0.1 mm· 7%	81%	Cloudy	E 5 mph8 km/h
DayOvercast and mild, with a high of 67°F19°C and morning low of 57°F14°C. Breezy from the E at 5 to 7 mph9 to 11 km/h. NightOvercast, with a low around 57°F14°C. Light wind from the ENE around 5 mph7 km/h.
	SaturdaySep 26	67°F19°C	54°F12°C	0.01 in0.2 mm· 6%	82%	Cloudy	E 5 mph8 km/h
DayOvercast and mild, with a high of 67°F19°C and morning low of 54°F12°C. Light wind from the ESE around 6 mph9 km/h. NightOvercast, with a low around 56°F13°C. Light wind from the E around 5 mph8 km/h.
	SundaySep 27	69°F21°C	55°F13°C	0.04 in0.9 mm· 18%	71%	Drizzle	ENE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 55°F13°C. Light wind from the ENE around 4 mph6 km/h. 18% chance of drizzle in the morning. NightMostly cloudy, with a low around 55°F13°C. Light wind from the ENE around 4 mph6 km/h. 18% chance of drizzle overnight.
	MondaySep 28	72°F22°C	53°F12°C	0 in0 mm· —	35%	Clear	ENE 4 mph6 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 53°F12°C. Light wind from the NE around 3 mph5 km/h. NightPartly cloudy, with a low around 55°F13°C. Light wind from the ENE around 4 mph7 km/h.
	TuesdaySep 29	72°F22°C	54°F12°C	0.07 in1.7 mm· 30%	77%	Light Rain	SSE 6 mph10 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 54°F12°C. Breezy from the S at 6 to 8 mph10 to 12 km/h. 13% chance of drizzle around midday. NightMostly cloudy, with a low around 55°F13°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. 30% chance of light rain in the evening.
	WednesdaySep 30	68°F20°C	60°F15°C	0.37 in9.4 mm· 37%	82%	Light Rain	S 8 mph13 km/h
DayOvercast and mild, with a high of 68°F20°C and morning low of 60°F15°C. Breezy from the S at 9 mph14 km/h. 37% chance of light rain throughout the day. NightOvercast, with a low around 61°F16°C. Breezy from the SSE at 8 mph13 km/h. 37% chance of light rain throughout the night.
	ThursdayOct 1	68°F20°C	57°F14°C	0.19 in4.9 mm· 27%	65%	Showers	W 8 mph13 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 57°F14°C. Breezy from the WNW at 9 mph14 km/h. 24% chance of showers throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the W at 8 mph12 km/h. 27% chance of showers throughout the night.
	FridayOct 2	68°F20°C	55°F13°C	0.12 in3 mm· 20%	59%	Showers	WSW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 55°F13°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the WSW at 7 to 8 mph11 to 12 km/h. 19% chance of showers throughout the night.
	SaturdayOct 3	68°F20°C	55°F13°C	0.11 in2.7 mm· 20%	65%	Showers	SW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 55°F13°C. Breezy from the SW at 8 to 10 mph13 to 15 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F14°C. Breezy from the SSW at 8 mph12 km/h. 20% chance of showers throughout the night.
	SundayOct 4	65°F19°C	54°F12°C	0.15 in3.9 mm· 21%	59%	Showers	WSW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 65°F19°C and morning low of 54°F12°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 21% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 56°F13°C. Breezy from the WSW at 8 to 9 mph14 to 14 km/h. 19% chance of showers throughout the night.
	MondayOct 5	65°F18°C	51°F11°C	0.11 in2.8 mm· 17%	54%	Showers	W 9 mph14 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 51°F11°C. Breezy from the W at 9 to 10 mph15 to 16 km/h. 14% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 17% chance of showers throughout the night.
	TuesdayOct 6	66°F19°C	50°F10°C	0.06 in1.5 mm· 13%	44%	Drizzle	W 8 mph13 km/h
DayPartly cloudy and mild, with a high of 66°F19°C and morning low of 50°F10°C. Breezy from the W at 9 to 10 mph14 to 16 km/h. 12% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 52°F11°C. Breezy from the W at 8 mph12 km/h. 13% chance of drizzle throughout the night.
	WednesdayOct 7	65°F18°C	50°F10°C Feels 46°F8°C	0.09 in2.4 mm· 15%	46%	Drizzle	WNW 8 mph13 km/h
DayPartly cloudy and mild, with a high of 65°F18°C and morning low of 50°F10°C. Breezy from the NW at 9 mph14 km/h. 15% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 51°F11°C. Breezy from the WNW at 8 mph13 km/h. 13% chance of drizzle throughout the night.

Nearby Cities

Crystal Lake7 mi11 km Cary9 mi14 km Round Lake9 mi14 km Woodstock9 mi15 km Round Lake Beach9 mi15 km Lake in the Hills11 mi18 km

About This Forecast

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Coordinates: 42.3334°N, 88.2668°W·Elevation: 243m·Timezone: America/Chicago·Population: 26,657