Weather Alert
Grantsburg Weather Warning NWS WEATHER ALERT FOR THE GRANTSBURG, WI AREA - Issued: 119 PM CDT Sun Sep 20 2026 Grantsburg Weather Warning

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Grantsburg, WI Weather - Hour by Hour Forecast

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Grantsburg, WI Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 51°F11°C, dew point 43°F6°C, humidity 74%. Wind direction is NNE at 8 mph13 km/h with visibility of 10 mi16 km. Barometric pressure is 30.26 in1024 mb.
Tonight - Mostly cloudy. Cooler with lows in the upper 30s. Northeast winds 5 to 10 mph... Full Forecast
Monday - Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 60s. East winds around 5 mph... Full Forecast

Grantsburg Hourly Weather

24 Hour Forecast Scroll
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Grantsburg, WI Hourly Weather - Cloudy - 9:00 PM Grantsburg, WI Hourly Weather - Cloudy - 10:00 PM Grantsburg, WI Hourly Weather - Cloudy - 11:00 PM Grantsburg, WI Hourly Weather - Cloudy - 12:00 AM Grantsburg, WI Hourly Weather - Cloudy - 1:00 AM Grantsburg, WI Hourly Weather - Cloudy - 2:00 AM Grantsburg, WI Hourly Weather - Mostly Cloudy - 3:00 AM Grantsburg, WI Hourly Weather - Mostly Cloudy - 4:00 AM Grantsburg, WI Hourly Weather - Mostly Cloudy - 5:00 AM Grantsburg, WI Hourly Weather - Mostly Cloudy - 6:00 AM Grantsburg, WI Hourly Weather - Mostly Cloudy - 7:00 AM Grantsburg, WI Hourly Weather - Mostly Cloudy - 8:00 AM Grantsburg, WI Hourly Weather - Clear - 9:00 AM Grantsburg, WI Hourly Weather - Clear - 10:00 AM Grantsburg, WI Hourly Weather - Clear - 11:00 AM Grantsburg, WI Hourly Weather - Mostly Clear - 12:00 PM Grantsburg, WI Hourly Weather - Mostly Clear - 1:00 PM Grantsburg, WI Hourly Weather - Mostly Clear - 2:00 PM Grantsburg, WI Hourly Weather - Clear - 3:00 PM Grantsburg, WI Hourly Weather - Clear - 4:00 PM Grantsburg, WI Hourly Weather - Clear - 5:00 PM Grantsburg, WI Hourly Weather - Clear - 6:00 PM Grantsburg, WI Hourly Weather - Clear - 7:00 PM Grantsburg, WI Hourly Weather - Clear - 8:00 PM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Clear Clear Clear Mostly Clear Mostly Clear Mostly Clear Clear Clear Clear Clear Clear Clear
50°F10°C 48°F9°C 48°F9°C 47°F8°C 47°F8°C 46°F8°C 46°F8°C 45°F7°C 45°F7°C 45°F7°C 45°F7°C 47°F8°C 50°F10°C 52°F11°C 54°F12°C 57°F14°C 59°F15°C 59°F15°C 60°F16°C 60°F16°C 59°F15°C 57°F14°C 56°F13°C 54°F12°C
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11% 11% 11% 11% 11% 7% 7% 7% 7% 7% 7% 4% 4% 4% 4% 4% 4% 5% 5% 5% 5% 5% 5% 3%
46°F8°C 46°F8°C 46°F8°C 45°F7°C 45°F7°C 45°F7°C 44°F7°C 44°F7°C 44°F7°C 43°F6°C 43°F6°C 43°F6°C 44°F7°C 44°F7°C 43°F6°C 43°F6°C 42°F6°C 42°F6°C 42°F6°C 42°F6°C 42°F6°C 43°F6°C 43°F6°C 43°F6°C
86% 93% 93% 93% 93% 96% 93% 96% 96% 93% 93% 86% 80% 74% 66% 59% 53% 53% 51% 51% 53% 59% 62% 66%
NE NE NE NE NE NE ENE ENE ENE ENE ENE ENE E E E E E E E E E E E E
2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 5 mph 5 mph 5 mph 6 mph 6 mph 6 mph 6 mph 6 mph 6 mph 2 mph 2 mph 2 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
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Temperature
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KROS model statistics.

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Prob Precip % = Probability of Precipitation.

Grantsburg 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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