National Weather Service Forecast for: Evanston IL
Issued by: National Weather Service Chicago, IL
Updated: 2:20 am CDT Aug 26, 2026
 
Overnight

Overnight: A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 67. South southwest wind around 10 mph, with gusts as high as 15 mph.
Slight Chance
Showers
 Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 84. South southwest wind around 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Chance
Showers
 Wednesday
Night
Wednesday Night: A 10 percent chance of showers before 7pm. Mostly clear, with a low around 66. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Slight Chance
Showers then
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 75. Northwest wind 5 to 10 mph becoming northeast in the afternoon.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: Sunny, with a high near 76.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 65.
Partly Cloudy

 Saturday

Saturday: Partly sunny, with a high near 80.
Partly Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 70.
Mostly Cloudy
Lo 67 °F Hi 84 °F Lo 66 °F Hi 75 °F Lo 66 °F Hi 76 °F Lo 65 °F Hi 80 °F Lo 70 °F

Hazardous Weather Outlook
 

Overnight
 
 A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 67. South southwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday
 
 A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 84. South southwest wind around 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
 
 A 10 percent chance of showers before 7pm. Mostly clear, with a low around 66. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
 
 Sunny, with a high near 75. Northwest wind 5 to 10 mph becoming northeast in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Friday
 
 Sunny, with a high near 76.
Friday Night
 
 Partly cloudy, with a low around 65.
Saturday
 
 Partly sunny, with a high near 80.
Saturday Night
 
 Mostly cloudy, with a low around 70.
Sunday
 
 Mostly sunny, with a high near 85.
Sunday Night
 
 A chance of showers. Partly cloudy, with a low around 73.
Monday
 
 Partly sunny, with a high near 85.
Monday Night
 
 A chance of showers. Mostly cloudy, with a low around 72.
Tuesday
 
 A chance of showers. Mostly sunny, with a high near 82.

 

Forecast from NOAA-NWS for Evanston IL.