Downers Grove, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Downers Grove, IL in one place.
Showers and thunderstorms after 7am. Some of the storms could be severe and produce heavy rain. Cloudy. High near 70, with temperatures falling to around 68 in the afternoon. South southeast wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Local Weather Overview
This forecast page for Downers Grove, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 16, 2026 12:00 PM CDT.
The active forecast window currently covers Jun 17 to Jun 22, 2026 for Downers Grove, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 17 to Jun 22, 2026
- Latest sync
- Jun 16, 2026 12:00 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Downers Grove
Saturday looks like the warmest upcoming period in Downers Grove at 77 degrees F.
Thursday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 20 mph SSE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 16, 2026 12:00 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 1am. Some of the storms could be severe and produce heavy rain. Partly cloudy, with a low around 61. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Mostly sunny, with a high near 72. West wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly clear, with a low around 57.
Sunny, with a high near 75.
Mostly clear, with a low around 57.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 77.
A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
A chance of rain showers before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 76.
Showers and thunderstorms likely. Mostly cloudy, with a low around 62.
A chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 77.
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 17
|
Showers And Thunderstorms
|
70°F |
5 to 20 mph
SSE
|
|
Wednesday Night
Jun 17
|
Showers And Thunderstorms
|
61°F |
10 to 15 mph
WNW
|
|
Thursday
Jun 18
|
Mostly Sunny
|
72°F |
15 to 20 mph
W
|
|
Thursday Night
Jun 18
|
Mostly Clear
|
57°F |
5 to 10 mph
WNW
|
|
Juneteenth
Jun 19
|
Sunny
|
75°F |
5 to 15 mph
WNW
|
|
Friday Night
Jun 19
|
Mostly Clear
|
57°F |
5 to 10 mph
WNW
|
|
Saturday
Jun 20
|
Sunny then Slight Chance Showers And Thunderstorms
|
77°F |
5 to 10 mph
W
|
|
Saturday Night
Jun 20
|
Chance Showers And Thunderstorms
|
61°F |
5 to 10 mph
S
|
|
Sunday
Jun 21
|
Showers And Thunderstorms Likely
|
76°F |
5 to 15 mph
SE
|
|
Sunday Night
Jun 21
|
Showers And Thunderstorms Likely
|
62°F |
10 mph
E
|
|
Monday
Jun 22
|
Slight Chance Showers And Thunderstorms
|
77°F |
10 to 15 mph
NE
|
|
Monday Night
Jun 22
|
Slight Chance Rain Showers
|
60°F |
5 to 15 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Downers Grove.
