Downers Grove, IA Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Downers Grove, IA in one place.
A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms. Mostly cloudy. High near 74, with temperatures falling to around 70 in the afternoon. Northwest wind around 5 mph. Chance of precipitation is 50%.
Local Weather Overview
This forecast page for Downers Grove, IA 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 1:33 PM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Downers Grove, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 1:33 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Downers Grove
Saturday looks like the warmest upcoming period in Downers Grove at 79 degrees F.
Monday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Friday Night at about 10 to 15 mph SE.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 1:33 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58. North wind around 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy. High near 69, with temperatures falling to around 67 in the afternoon. East wind around 5 mph. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms. Mostly cloudy, with a low around 62. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 71. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 71.
Partly cloudy, with a low around 50.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 15
|
Chance Showers And Thunderstorms
|
74°F |
5 mph
NW
|
|
Tonight
Sep 15
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
58°F |
5 mph
N
|
|
Wednesday
Sep 16
|
Chance Showers And Thunderstorms
|
69°F |
5 mph
E
|
|
Wednesday Night
Sep 16
|
Chance Showers And Thunderstorms
|
62°F |
5 mph
E
|
|
Thursday
Sep 17
|
Showers And Thunderstorms
|
78°F |
0 to 5 mph
NE
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms
|
62°F |
5 mph
E
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
78°F |
5 to 10 mph
SE
|
|
Friday Night
Sep 18
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
64°F |
10 to 15 mph
SE
|
|
Saturday
Sep 19
|
Showers And Thunderstorms Likely
|
79°F |
10 to 15 mph
SW
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms
|
59°F |
5 to 10 mph
NW
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
71°F |
10 mph
NE
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
53°F |
5 to 10 mph
NE
|
|
Monday
Sep 21
|
Slight Chance Rain Showers then Mostly Sunny
|
71°F |
5 to 10 mph
NE
|
|
Monday Night
Sep 21
|
Partly Cloudy
|
50°F |
5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Downers Grove.