National Weather Service Forecast for: Mount Prospect IL
Issued by: National Weather Service Chicago, IL
Updated: 4:26 am CDT Jun 2, 2025
 
Today

Today: Mostly sunny, with a high near 84. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny

 Tonight

Tonight: Partly cloudy, with a low around 67. South wind 10 to 15 mph.
Partly Cloudy

 Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 87. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Breezy.
Mostly Sunny
then Chance
T-storms
 Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 59. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Showers

 Wednesday

Wednesday: Showers and possibly a thunderstorm before 1pm, then showers likely. High near 64. North northeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Showers

 Wednesday
Night
Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 55.
Chance
Showers

 Thursday

Thursday: A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 71.
Chance
Showers

 Thursday
Night
Thursday Night: A chance of showers. Mostly cloudy, with a low around 57.
Chance
Showers

 Friday

Friday: A chance of showers. Mostly sunny, with a high near 71.
Chance
Showers
Hi 84 °F Lo 67 °F Hi 87 °F Lo 59 °F Hi 64 °F Lo 55 °F Hi 71 °F Lo 57 °F Hi 71 °F

 

Today
 
 Mostly sunny, with a high near 84. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
 
 Partly cloudy, with a low around 67. South wind 10 to 15 mph.
Tuesday
 
 A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 87. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 59. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Wednesday
 
 Showers and possibly a thunderstorm before 1pm, then showers likely. High near 64. North northeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Wednesday Night
 
 A 40 percent chance of showers. Mostly cloudy, with a low around 55.
Thursday
 
 A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 71.
Thursday Night
 
 A chance of showers. Mostly cloudy, with a low around 57.
Friday
 
 A chance of showers. Mostly sunny, with a high near 71.
Friday Night
 
 Mostly cloudy, with a low around 55.
Saturday
 
 Mostly sunny, with a high near 73.
Saturday Night
 
 Partly cloudy, with a low around 56.
Sunday
 
 A chance of showers. Partly sunny, with a high near 79.

 

Forecast from NOAA-NWS for Mount Prospect IL.