Grand River, IA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Grand River, IA in one place.
Showers and thunderstorms likely before 3pm. Cloudy, with a high near 76. East wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Grand River, 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 1:29 PM CDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Grand River, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 1:29 PM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand River
Friday looks like the warmest upcoming period in Grand River at 83 degrees F.
Monday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Friday at about 7 to 12 mph SSE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 1:29 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KDMX
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 1am, then showers and thunderstorms likely. Mostly cloudy. Low around 65, with temperatures rising to around 67 overnight. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. East northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 67. Chance of precipitation is 60%.
Showers and thunderstorms likely. 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 60. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 70. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 55.
Partly sunny, with a high near 67.
Partly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Showers And Thunderstorms Likely
|
76°F |
5 to 8 mph
E
|
|
Wednesday Night
Sep 16
|
Chance Showers And Thunderstorms
|
65°F |
5 mph
NE
|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely
|
82°F |
5 mph
ENE
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms
|
65°F |
7 mph
E
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms
|
83°F |
7 to 12 mph
SSE
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
67°F |
10 mph
SSW
|
|
Saturday
Sep 19
|
Showers And Thunderstorms Likely
|
79°F |
10 mph
WSW
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms
|
60°F |
8 mph
NNW
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
70°F |
9 mph
N
|
|
Sunday Night
Sep 20
|
Slight Chance Showers And Thunderstorms
|
55°F |
5 to 8 mph
NNE
|
|
Monday
Sep 21
|
Partly Sunny
|
67°F |
7 mph
NE
|
|
Monday Night
Sep 21
|
Partly Cloudy
|
52°F |
6 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand River.