What is today's weather forecast for Mount Prospect, IL?

Today's forecast for Mount Prospect shows a low of 16 degrees Fahrenheit. Partly cloudy, with a low around 16.

What is the 7-day weather forecast for Mount Prospect, IL?

The 7-day forecast for Mount Prospect shows highs from 28 to 46 degrees and lows from 13 to 31 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Mount Prospect, IL this week?

Yes, rain is possible in Mount Prospect this week. Precipitation chances: Wednesday (40% chance), Thursday (90% chance).

How accurate is the Mount Prospect weather forecast?

WeatherForYou provides highly accurate Mount Prospect forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Mount Prospect, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

22°F
Feels Like 18°F

Humidity 62% Dew Point 11°F Wind SW 3 MPH Barometer 30.08 in.

Visibility 10 mi.

Report from a NOAA weather station 4 mi. NNE of central Mount Prospect
at 5:52 PM Mon, Dec 15, 2025

Point Forecast at a Glance

MonDec 15

TueDec 16

WedDec 17

ThuDec 18

90%

FriDec 19

SatDec 20

SunDec 21

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Sharp cooling trend with high temperatures dropping from 35°F to 34°F, falling as low as 28°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 36°F and lows around 22°F.

This Date in Weather History

1839 - The first of triple storms hit Massachusetts Bay. The storm produced whole gales, and more than 20 inches of snow in interior New England. There was great loss of life at Gloucester MA.

Mount Prospect, IL 7 Day Weather Forecast Details

Monday Dec 15

Night: Partly cloudy, with a low around 16. Southwest wind around 5 mph, with gusts as high as 10 mph.

Tuesday Dec 16

Day: Mostly sunny, with a high near 35. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

Night: Cloudy, then gradually becoming partly cloudy, with a low around 30. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Wednesday Dec 17

Day: Mostly sunny, with a high near 38. West wind 5 to 10 mph becoming south in the afternoon.

Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 31. South wind 10 to 15 mph, with gusts as high as 30 mph.

Thursday Dec 18

Day: Rain before noon, then a chance of rain and snow. High near 46. Breezy. Chance of precipitation is 90%.

Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 13. Breezy. Chance of precipitation is 20%.

Friday Dec 19

Day: Partly sunny, with a high near 28.

Night: Mostly cloudy, with a low around 22.

Saturday Dec 20

Day: Mostly cloudy, with a high near 42.

Night: Mostly cloudy, with a low around 23.

Sunday Dec 21

Day: Mostly sunny, with a high near 34.

Night: Mostly cloudy, with a low around 26.

Monday Dec 22

Day: Mostly cloudy, with a high near 38.

About Mount Prospect, IL

Mount Prospect is a village in Cook County, Illinois, United States. It is part of Elk Grove and Wheeling townships, about 20 miles (32 km) northwest of downtown Chicago and approximately 4 miles (6.4 km) north of O'Hare International Airport. As of the 2020 census, the village had a total population of 56,852.

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How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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