Casco, WI Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Casco, WI in one place.
Sunny, with a high near 83.
Local Weather Overview
This forecast page for Casco, 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: May 23, 2026 2:46 PM CDT.
The active forecast window currently covers May 26 to May 29, 2026 for Casco, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 26 to May 29, 2026
- Latest sync
- May 23, 2026 2:46 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Casco
Tuesday looks like the warmest upcoming period in Casco at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Friday at about 7 to 12 mph NE.
The forecast from May 26 through May 29 stays mostly dry.
Forecast Details
- Last updated
- May 23, 2026 2:46 PM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- GRB
- Radar station
- KGRB
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 57.
Mostly sunny, with a high near 75.
Partly cloudy, with a low around 52.
Sunny, with a high near 71.
Mostly clear, with a low around 50.
Sunny, with a high near 69.
Mostly clear, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Sunny
|
83°F |
6 to 10 mph
SSW
|
|
Tuesday Night
May 26
|
Partly Cloudy
|
57°F |
3 to 9 mph
SE
|
|
Wednesday
May 27
|
Mostly Sunny
|
75°F |
3 to 8 mph
ENE
|
|
Wednesday Night
May 27
|
Partly Cloudy
|
52°F |
7 mph
NE
|
|
Thursday
May 28
|
Sunny
|
71°F |
7 to 10 mph
NE
|
|
Thursday Night
May 28
|
Mostly Clear
|
50°F |
6 to 9 mph
NE
|
|
Friday
May 29
|
Sunny
|
69°F |
7 to 12 mph
NE
|
|
Friday Night
May 29
|
Mostly Clear
|
49°F |
5 to 10 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Casco.