River Grove, IL Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for River Grove, IL in one place.
A chance of rain showers. Mostly cloudy, with a high near 73. Northeast wind 5 to 10 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for River 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: Sep 15, 2026 7:52 AM CDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for River Grove, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 7:52 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in River Grove
Saturday looks like the warmest upcoming period in River Grove at 81 degrees F.
Sunday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 7:52 AM 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
A slight chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 66. Southeast wind 0 to 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 64.
A chance of rain showers. Mostly cloudy, with a high near 76.
A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Chance Rain Showers
|
73°F |
5 to 10 mph
NE
|
|
Wednesday Night
Sep 16
|
Showers And Thunderstorms Likely
|
66°F |
0 to 5 mph
SE
|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely
|
77°F |
5 mph
NNW
|
|
Thursday Night
Sep 17
|
Mostly Cloudy then Slight Chance Rain Showers
|
64°F |
5 mph
NE
|
|
Friday
Sep 18
|
Chance Rain Showers
|
76°F |
5 to 10 mph
ENE
|
|
Friday Night
Sep 18
|
Slight Chance Showers And Thunderstorms
|
65°F |
10 mph
ESE
|
|
Saturday
Sep 19
|
Chance Showers And Thunderstorms
|
81°F |
10 to 15 mph
SSW
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
64°F |
10 mph
WNW
|
|
Sunday
Sep 20
|
Chance Rain Showers
|
73°F |
10 to 15 mph
N
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
58°F |
10 to 15 mph
NE
|
|
Monday
Sep 21
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
69°F |
10 to 15 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around River Grove.