Current Conditions

Mount Prospect, Illinois

83°F28°C
Drizzle

Feels like89°F32°C

Wind

SW 7 mph12 km/h

Humidity

75%

Cloud Cover

11%

As of Wednesday, September 2, 2026 at 10:21 PM CDT

Today's Outlook

Night

Partly cloudy, with a low around 78°F26°C. Breezy from the S at 7 mph11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 88°F31°CFeels 95°F35°CLow 77°F25°CPrecip 0.03 in0.7 mm26%Cloud 41%Wind SSW 6 mph10 km/hThursday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 77°F25°C — feels like 95°F35°C. Light wind from the SW around 6 mph9 km/h. 26% chance of drizzle around midday. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the S at 7 mph11 km/h.
ShowersHigh 89°F31°CFeels 96°F36°CLow 75°F24°CPrecip 0.07 in1.7 mm22%Cloud 55%Wind ESE 7 mph10 km/hFriday: Mostly cloudy and hot, with a high of 89°F31°C and morning low of 75°F24°C — feels like 97°F36°C. Breezy from the SE at 7 mph11 km/h. 16% chance of drizzle in the morning. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 76°F25°C. Breezy from the E at 6 to 7 mph10 to 12 km/h. 22% chance of showers throughout the night.
ShowersHigh 82°F28°CFeels 87°F30°CLow 74°F23°CPrecip 0.13 in3.3 mm24%Cloud 52%Wind NE 7 mph11 km/hSaturday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 75°F24°C. Breezy from the NE at 7 to 9 mph12 to 15 km/h. 24% chance of drizzle throughout the day. Heavy, humid air. Saturday Night: Partly cloudy, with a low around 74°F23°C. Breezy from the NE at 7 to 8 mph11 to 13 km/h. 24% chance of showers throughout the night.
Partly CloudyHigh 79°F26°CLow 71°F21°CPrecip 0.02 in0.5 mm5%Cloud 60%Wind E 7 mph11 km/hSunday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 71°F21°C. Breezy from the ESE at 7 to 8 mph11 to 13 km/h. Humid. Sunday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the E at 7 mph11 km/h.
Partly CloudyHigh 80°F27°CLow 69°F20°CPrecip 0.02 in0.6 mm5%Cloud 60%Wind SE 7 mph11 km/hMonday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 69°F20°C. Breezy from the SE at 7 to 8 mph11 to 12 km/h. Monday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the ESE at 7 mph11 km/h.
Partly CloudyHigh 87°F30°CLow 69°F20°CPrecip 0.02 in0.6 mm7%Cloud 58%Wind S 9 mph15 km/hTuesday: Mostly cloudy and hot, with a high of 87°F30°C and morning low of 69°F20°C. Breezy from the S at 9 to 10 mph15 to 17 km/h. Humid. Tuesday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the SSE at 9 to 11 mph15 to 17 km/h.
HotHigh 90°F32°CFeels 95°F35°CLow 75°F24°CPrecip 0.04 in1.1 mm9%Cloud 44%Wind SW 10 mph16 km/hWednesday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 75°F24°C — feels like 95°F35°C. Breezy from the SW at 10 to 11 mph16 to 17 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 76°F25°C. Breezy from the SSW at 10 to 11 mph16 to 18 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 388°F31°C
Feels 95°F35°C
77°F25°C0.03 in0.7 mm· 26%41%DrizzleSSW 6 mph10 km/h
FridaySep 489°F31°C
Feels 96°F36°C
75°F24°C0.07 in1.7 mm· 22%55%ShowersESE 7 mph10 km/h
SaturdaySep 582°F28°C
Feels 87°F30°C
74°F23°C0.13 in3.3 mm· 24%52%ShowersNE 7 mph11 km/h
SundaySep 679°F26°C71°F21°C0.02 in0.5 mm· 5%60%Partly CloudyE 7 mph11 km/h
MondaySep 780°F27°C69°F20°C0.02 in0.6 mm· 5%60%Partly CloudySE 7 mph11 km/h
TuesdaySep 887°F30°C69°F20°C0.02 in0.6 mm· 7%58%Partly CloudyS 9 mph15 km/h
WednesdaySep 990°F32°C
Feels 95°F35°C
75°F24°C0.04 in1.1 mm· 9%44%HotSW 10 mph16 km/h
ThursdaySep 1083°F28°C74°F23°C0.16 in4.1 mm· 24%55%ShowersWSW 9 mph15 km/h
FridaySep 1180°F27°C69°F20°C0.17 in4.2 mm· 21%53%ShowersSW 9 mph14 km/h
SaturdaySep 1278°F26°C67°F20°C0.16 in4 mm· 24%51%ShowersSW 9 mph15 km/h
SundaySep 1378°F26°C66°F19°C0.14 in3.5 mm· 17%54%ShowersSSW 9 mph14 km/h
MondaySep 1478°F26°C66°F19°C0.13 in3.3 mm· 19%51%ShowersSSW 9 mph15 km/h
TuesdaySep 1577°F25°C65°F19°C0.13 in3.2 mm· 16%51%ShowersSW 9 mph14 km/h
WednesdaySep 1676°F24°C64°F18°C0.11 in2.7 mm· 15%44%ShowersWSW 9 mph14 km/h
ThursdaySep 1775°F24°C62°F17°C0.07 in1.9 mm· 14%40%DrizzleWSW 8 mph14 km/h

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About This Forecast

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Coordinates: 42.0664°N, 87.9373°W·Elevation: 204m·Timezone: America/Chicago·Population: 54,747