Grand Marsh, WI Weather Forecast
Local 7-day forecast
Scattered Rain Showers then Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Grand Marsh, WI in one place.
Scattered rain showers before 9am. Mostly cloudy, with a high near 73. West wind 8 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Grand Marsh, WI 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 14, 2026 6:55 PM CDT.
The active forecast window currently covers Sep 15 to Sep 20, 2026 for Grand Marsh, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 20, 2026
- Latest sync
- Sep 14, 2026 6:55 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand Marsh
Saturday looks like the warmest upcoming period in Grand Marsh at 74 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Tuesday at about 8 to 12 mph W.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 6:55 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ARX
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 48. North wind 1 to 6 mph.
Partly sunny, with a high near 70. East wind 3 to 7 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers after 7pm. Mostly cloudy, with a low around 55. East wind 2 to 6 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 1pm. Mostly cloudy, with a high near 73. Northeast wind around 3 mph. Chance of precipitation is 70%.
A chance of rain showers after 1am. Mostly cloudy, with a low around 56. East wind around 2 mph. Chance of precipitation is 30%.
Rain showers likely. Mostly cloudy, with a high near 72. Southeast wind 3 to 7 mph. Chance of precipitation is 60%.
Rain showers likely before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a high near 74. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Rain showers likely. Mostly cloudy, with a low around 56. Northeast wind around 7 mph. Chance of precipitation is 60%.
A chance of rain showers. Mostly cloudy, with a high near 68. Northeast wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Northeast wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Scattered Rain Showers then Mostly Cloudy
|
73°F |
8 to 12 mph
W
|
|
Tuesday Night
Sep 15
|
Partly Cloudy
|
48°F |
1 to 6 mph
N
|
|
Wednesday
Sep 16
|
Partly Sunny
|
70°F |
3 to 7 mph
E
|
|
Wednesday Night
Sep 16
|
Chance Rain Showers
|
55°F |
2 to 6 mph
E
|
|
Thursday
Sep 17
|
Chance Rain Showers
|
73°F |
3 mph
NE
|
|
Thursday Night
Sep 17
|
Mostly Cloudy then Chance Rain Showers
|
56°F |
2 mph
E
|
|
Friday
Sep 18
|
Rain Showers Likely
|
72°F |
3 to 7 mph
SE
|
|
Friday Night
Sep 18
|
Showers And Thunderstorms
|
60°F |
9 mph
SE
|
|
Saturday
Sep 19
|
Showers And Thunderstorms
|
74°F |
7 to 10 mph
SW
|
|
Saturday Night
Sep 19
|
Rain Showers Likely
|
56°F |
7 mph
NE
|
|
Sunday
Sep 20
|
Chance Rain Showers
|
68°F |
9 mph
NE
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
52°F |
5 to 8 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand Marsh.