Current Conditions

McHenry, Illinois

72°F22°C

Partly Cloudy

Wind

W 3 mph5 km/h

Humidity

43%

Cloud Cover

23%

As of Thursday, July 23, 2026 at 11:09 AM CDT

Today's Outlook

Day

Partly cloudy and warm, with a high of 78°F25°C and morning low of 59°F15°C. Light wind from the WSW around 3 mph4 km/h. Dry air.

Night

Overcast, with a low around 67°F19°C. Light wind from the SSE around 4 mph6 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
ThursdayJul 23	Partly Cloudy	High 78°F25°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 60%	Wind SSW 3 mph5 km/h	Thursday: Partly cloudy and warm, with a high of 78°F25°C and morning low of 59°F15°C. Light wind from the WSW around 3 mph4 km/h. Dry air. Thursday Night: Overcast, with a low around 67°F19°C. Light wind from the SSE around 4 mph6 km/h.
FridayJul 24	Partly Cloudy	High 80°F27°C	Low 62°F17°C	Precip 0 in0 mm—	Cloud 57%	Wind S 5 mph8 km/h	Friday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 63°F17°C. Light wind from the S around 5 mph7 km/h. Friday Night: Mostly cloudy, with a low around 62°F17°C. Light wind from the SSW around 5 mph8 km/h.
SaturdayJul 25	Partly Cloudy	High 82°F28°C	Low 65°F18°C	Precip 0 in0.1 mm1%	Cloud 42%	Wind SW 7 mph11 km/h	Saturday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 66°F19°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. Saturday Night: Mostly clear, with a low around 65°F18°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h.
SundayJul 26	Drizzle	High 91°F33°CFeels 95°F35°C	Low 71°F22°C	Precip 0.02 in0.5 mm10%	Cloud 58%	Wind SW 6 mph10 km/h	Sunday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 72°F22°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h. Heat risk in the afternoon. Sunday Night: Mostly cloudy, with a low around 71°F22°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 10% chance of drizzle in the evening.
MondayJul 27	Showers	High 92°F33°CFeels 100°F38°C	Low 75°F24°C	Precip 0.26 in6.6 mm27%	Cloud 46%	Wind SW 8 mph13 km/h	Monday: Partly cloudy and hot, with a high of 92°F33°C and morning low of 75°F24°C — feels like 100°F38°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 26% chance of showers throughout the day. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 76°F24°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 27% chance of showers throughout the night.
TuesdayJul 28	Drizzle	High 85°F30°C	Low 72°F22°C	Precip 0.04 in1 mm13%	Cloud 30%	Wind NNE 7 mph12 km/h	Tuesday: Partly cloudy and warm, with a high of 85°F30°C and morning low of 74°F23°C. Breezy from the NNE at 8 mph12 km/h. 10% chance of drizzle in the afternoon. Humid. Tuesday Night: Mostly clear, with a low around 72°F22°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. 13% chance of drizzle throughout the night.
WednesdayJul 29	Drizzle	High 85°F29°C	Low 67°F19°C	Precip 0.04 in1 mm17%	Cloud 22%	Wind NE 6 mph10 km/h	Wednesday: Mostly clear and warm, with a high of 85°F29°C and morning low of 68°F20°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. Wednesday Night: Mostly clear, with a low around 67°F19°C. Light wind from the ENE around 6 mph9 km/h. 17% chance of drizzle throughout the night.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	ThursdayJul 23	78°F25°C	59°F15°C	0 in0 mm· —	60%	Partly Cloudy	SSW 3 mph5 km/h
DayPartly cloudy and warm, with a high of 78°F25°C and morning low of 59°F15°C. Light wind from the WSW around 3 mph4 km/h. Dry air. NightOvercast, with a low around 67°F19°C. Light wind from the SSE around 4 mph6 km/h.
	FridayJul 24	80°F27°C	62°F17°C	0 in0 mm· —	57%	Partly Cloudy	S 5 mph8 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 63°F17°C. Light wind from the S around 5 mph7 km/h. NightMostly cloudy, with a low around 62°F17°C. Light wind from the SSW around 5 mph8 km/h.
	SaturdayJul 25	82°F28°C	65°F18°C	0 in0.1 mm· 1%	42%	Partly Cloudy	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 66°F19°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. NightMostly clear, with a low around 65°F18°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h.
	SundayJul 26	91°F33°C Feels 95°F35°C	71°F22°C	0.02 in0.5 mm· 10%	58%	Drizzle	SW 6 mph10 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 72°F22°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 10% chance of drizzle in the evening.
	MondayJul 27	92°F33°C Feels 100°F38°C	75°F24°C	0.26 in6.6 mm· 27%	46%	Showers	SW 8 mph13 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 75°F24°C — feels like 100°F38°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 26% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 76°F24°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 27% chance of showers throughout the night.
	TuesdayJul 28	85°F30°C	72°F22°C	0.04 in1 mm· 13%	30%	Drizzle	NNE 7 mph12 km/h
DayPartly cloudy and warm, with a high of 85°F30°C and morning low of 74°F23°C. Breezy from the NNE at 8 mph12 km/h. 10% chance of drizzle in the afternoon. Humid. NightMostly clear, with a low around 72°F22°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. 13% chance of drizzle throughout the night.
	WednesdayJul 29	85°F29°C	67°F19°C	0.04 in1 mm· 17%	22%	Drizzle	NE 6 mph10 km/h
DayMostly clear and warm, with a high of 85°F29°C and morning low of 68°F20°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. NightMostly clear, with a low around 67°F19°C. Light wind from the ENE around 6 mph9 km/h. 17% chance of drizzle throughout the night.
	ThursdayJul 30	88°F31°C	68°F20°C	0.05 in1.2 mm· 12%	31%	Drizzle	SW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 69°F21°C. Light wind from the W around 6 mph10 km/h. 12% chance of drizzle in the morning. NightPartly cloudy, with a low around 68°F20°C. Light wind from the S around 6 mph9 km/h. 11% chance of drizzle throughout the night.
	FridayJul 31	89°F32°C	70°F21°C	0.04 in1.1 mm· 14%	38%	Drizzle	WSW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 89°F32°C and morning low of 71°F22°C. Breezy from the W at 7 mph11 km/h. 13% chance of drizzle in the morning. NightPartly cloudy, with a low around 70°F21°C. Light wind from the WSW around 6 mph10 km/h. 14% chance of drizzle throughout the night.
	SaturdayAug 1	87°F31°C	70°F21°C	0.06 in1.5 mm· 16%	36%	Drizzle	WNW 7 mph11 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 70°F21°C. Breezy from the WNW at 7 to 8 mph11 to 13 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 70°F21°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 14% chance of drizzle before dawn.
	SundayAug 2	87°F31°C	69°F21°C	0.05 in1.3 mm· 11%	44%	Drizzle	WSW 7 mph11 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 69°F21°C. Breezy from the WSW at 7 to 8 mph12 to 14 km/h. NightPartly cloudy, with a low around 69°F21°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 11% chance of drizzle throughout the night.
	MondayAug 3	87°F31°C	70°F21°C	0.09 in2.3 mm· 17%	51%	Drizzle	SW 8 mph12 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 71°F21°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 70°F21°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. 17% chance of drizzle throughout the night.
	TuesdayAug 4	86°F30°C	70°F21°C	0.13 in3.2 mm· 20%	49%	Showers	WSW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 70°F21°C. Breezy from the WSW at 8 to 9 mph13 to 15 km/h. 17% chance of showers throughout the day. NightPartly cloudy, with a low around 70°F21°C. Breezy from the SW at 7 mph11 km/h. 20% chance of drizzle throughout the night.
	WednesdayAug 5	85°F30°C	69°F21°C	0.13 in3.2 mm· 22%	46%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 69°F21°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 14% chance of showers throughout the day. NightPartly cloudy, with a low around 69°F21°C. Breezy from the WSW at 7 mph11 km/h. 22% chance of drizzle throughout the night.
	ThursdayAug 6	84°F29°C	68°F20°C	0.1 in2.6 mm· 15%	40%	Showers	W 7 mph11 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 68°F20°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 15% chance of showers throughout the day. NightPartly cloudy, with a low around 68°F20°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 15% 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