Grantsburg, WI Weather Forecast
Local 7-day forecast
Areas Of Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Grantsburg, WI in one place.
Areas of smoke. Partly cloudy, with a low around 67. Southeast wind around 0 mph.
Local Weather Overview
This forecast page for Grantsburg, 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 17, 2026 5:05 AM CDT.
The active forecast window currently covers Jul 17 to Jul 23, 2026 for Grantsburg, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 5:05 AM CDT
- Forecast office
- DLH
- Source
- NOAA / NWS
Daily Outlook
This Week in Grantsburg
Friday looks like the warmest upcoming period in Grantsburg at 94 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Monday at about 10 to 15 mph W.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 5:05 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DLH
- Radar station
- KDLH
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy smoke before 9am. Sunny. High near 94, with temperatures falling to around 92 in the afternoon. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 8pm, then a chance of showers and thunderstorms between 8pm and 9pm. Mostly clear, with a low around 66. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Patchy smoke between 7am and 4pm. Sunny, with a high near 88. North wind 5 to 10 mph.
Mostly clear, with a low around 61. East wind 0 to 5 mph.
Mostly sunny, with a high near 90. South wind 0 to 5 mph.
A slight chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 69. South wind 5 to 10 mph, with gusts as high as 25 mph.
Showers and thunderstorms likely before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. West wind 10 to 15 mph, with gusts as high as 25 mph.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 63. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 81. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 55. North wind 0 to 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 81. Northwest wind 0 to 5 mph.
Mostly clear, with a low around 56. West wind 0 to 5 mph.
Sunny, with a high near 84. Southwest wind 0 to 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 17
|
Areas Of Smoke
|
67°F |
0 mph
|
|
Friday
Jul 17
|
Patchy Smoke then Sunny
|
94°F |
5 to 10 mph
SW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
66°F |
5 to 10 mph
NW
|
|
Saturday
Jul 18
|
Patchy Smoke
|
88°F |
5 to 10 mph
N
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
61°F |
0 to 5 mph
E
|
|
Sunday
Jul 19
|
Mostly Sunny
|
90°F |
0 to 5 mph
S
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms
|
69°F |
5 to 10 mph
S
|
|
Monday
Jul 20
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
94°F |
10 to 15 mph
W
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
63°F |
10 to 15 mph
NW
|
|
Tuesday
Jul 21
|
Sunny
|
81°F |
10 to 15 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
55°F |
0 to 15 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
81°F |
0 to 5 mph
NW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
56°F |
0 to 5 mph
W
|
|
Thursday
Jul 23
|
Sunny
|
84°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grantsburg.
