Casco, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Casco, WI in one place.
Mostly sunny, with a high near 81. Heat index values as high as 82. Northeast wind 2 to 7 mph.
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: Jul 9, 2026 11:18 PM CDT.
The active forecast window currently covers Jul 10 to Jul 16, 2026 for Casco, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 16, 2026
- Latest sync
- Jul 9, 2026 11:18 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Casco
Tuesday looks like the warmest upcoming period in Casco at 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Tuesday at about 9 to 13 mph W.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 9, 2026 11:18 PM CDT
- Coverage
- 7 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
Mostly clear, with a low around 61. East northeast wind 0 to 6 mph.
Sunny, with a high near 83. Heat index values as high as 84. East wind 1 to 6 mph.
Mostly clear, with a low around 63. South southeast wind around 5 mph.
Sunny, with a high near 85.
Mostly clear, with a low around 67.
Sunny, with a high near 89.
Mostly clear, with a low around 70.
Sunny, with a high near 91.
Partly cloudy, with a low around 69.
Mostly sunny, with a high near 85.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Mostly Sunny
|
81°F |
2 to 7 mph
NE
|
|
Friday Night
Jul 10
|
Mostly Clear
|
61°F |
0 to 6 mph
ENE
|
|
Saturday
Jul 11
|
Sunny
|
83°F |
1 to 6 mph
E
|
|
Saturday Night
Jul 11
|
Mostly Clear
|
63°F |
5 mph
SSE
|
|
Sunday
Jul 12
|
Sunny
|
85°F |
3 to 8 mph
SSW
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
67°F |
7 mph
SW
|
|
Monday
Jul 13
|
Sunny
|
89°F |
9 mph
WSW
|
|
Monday Night
Jul 13
|
Mostly Clear
|
70°F |
8 mph
SW
|
|
Tuesday
Jul 14
|
Sunny
|
91°F |
9 to 13 mph
W
|
|
Tuesday Night
Jul 14
|
Partly Cloudy
|
69°F |
8 to 12 mph
W
|
|
Wednesday
Jul 15
|
Mostly Sunny
|
85°F |
8 mph
NNE
|
|
Wednesday Night
Jul 15
|
Partly Cloudy then Slight Chance Rain Showers
|
66°F |
6 mph
S
|
|
Thursday
Jul 16
|
Slight Chance Rain Showers then Mostly Sunny
|
84°F |
7 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Casco.