Grantsburg, IL Weather Forecast
Local 7-day forecast
Widespread Frost then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grantsburg, IL in one place.
Widespread frost before 8am. Sunny. High near 57, with temperatures falling to around 51 in the afternoon. North wind around 3 mph.
Local Weather Overview
This forecast page for Grantsburg, IL 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: Nov 6, 2026 12:53 PM CST.
The active forecast window currently covers Nov 7 to Nov 12, 2026 for Grantsburg, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 7 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 12:53 PM CST
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Grantsburg
Tuesday looks like the warmest upcoming period in Grantsburg at 69 degrees F.
Saturday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Thursday at about 1 to 8 mph NNW.
The forecast from Nov 7 through Nov 12 stays mostly dry.
Forecast Details
- Last updated
- Nov 6, 2026 12:53 PM CST
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KPAH
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Widespread frost after 9pm. Mostly clear, with a low around 29. Wind around 0 mph.
Widespread frost before 8am. Sunny, with a high near 62. West southwest wind 0 to 6 mph.
Patchy frost after 4am. Clear, with a low around 34. West wind around 2 mph.
Patchy frost before 7am. Sunny, with a high near 67. West southwest wind 0 to 5 mph.
Clear, with a low around 38. Southwest wind around 1 mph.
Sunny, with a high near 69. West southwest wind 0 to 5 mph.
Mostly clear, with a low around 40. Wind around 0 mph.
Mostly sunny, with a high near 67. North northwest wind 0 to 5 mph.
Partly cloudy, with a low around 38. North wind around 1 mph.
Mostly sunny, with a high near 60. North northwest wind 1 to 8 mph.
Partly cloudy, with a low around 34. North wind around 2 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Nov 7
|
Widespread Frost then Sunny
|
57°F |
3 mph
N
|
|
Saturday Night
Nov 7
|
Widespread Frost
|
29°F |
0 mph
|
|
Sunday
Nov 8
|
Widespread Frost then Sunny
|
62°F |
0 to 6 mph
WSW
|
|
Sunday Night
Nov 8
|
Clear then Patchy Frost
|
34°F |
2 mph
W
|
|
Monday
Nov 9
|
Patchy Frost then Sunny
|
67°F |
0 to 5 mph
WSW
|
|
Monday Night
Nov 9
|
Clear
|
38°F |
1 mph
SW
|
|
Tuesday
Nov 10
|
Sunny
|
69°F |
0 to 5 mph
WSW
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
40°F |
0 mph
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
67°F |
0 to 5 mph
NNW
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
38°F |
1 mph
N
|
|
Thursday
Nov 12
|
Mostly Sunny
|
60°F |
1 to 8 mph
NNW
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
34°F |
2 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grantsburg.