Weather Alert
Grantfork Weather Warning NWS WEATHER ALERT FOR THE GRANTFORK, IL AREA - Issued: 234 AM CDT Wed Sep 2 2026 Grantfork Weather Warning

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Grantfork, IL Weather - Hour by Hour Forecast

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Grantfork, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 78°F26°C, dew point 71°F22°C, humidity 78%. Wind direction is N at 0 mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 30.05 in1018 mb.
Today - Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph... Full Forecast
Tonight - Mostly clear. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 104 early in the evening... Full Forecast

Grantfork Hourly Weather

24 Hour Forecast Scroll
Wed, Sep 02
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Grantfork, IL Hourly Weather - Mostly Clear - 8:00 AM Grantfork, IL Hourly Weather - Clear - 9:00 AM Grantfork, IL Hourly Weather - Clear - 10:00 AM Grantfork, IL Hourly Weather - Clear - 11:00 AM Grantfork, IL Hourly Weather - Partly Cloudy - 12:00 PM Grantfork, IL Hourly Weather - Partly Cloudy - 1:00 PM Grantfork, IL Hourly Weather - Partly Cloudy - 2:00 PM Grantfork, IL Hourly Weather - Partly Cloudy - 3:00 PM Grantfork, IL Hourly Weather - Partly Cloudy - 4:00 PM Grantfork, IL Hourly Weather - Partly Cloudy - 5:00 PM Grantfork, IL Hourly Weather - Clear - 6:00 PM Grantfork, IL Hourly Weather - Clear - 7:00 PM Grantfork, IL Hourly Weather - Clear - 8:00 PM Grantfork, IL Hourly Weather - Clear - 9:00 PM Grantfork, IL Hourly Weather - Clear - 10:00 PM Grantfork, IL Hourly Weather - Clear - 11:00 PM Grantfork, IL Hourly Weather - Clear - 12:00 AM Grantfork, IL Hourly Weather - Clear - 1:00 AM Grantfork, IL Hourly Weather - Clear - 2:00 AM Grantfork, IL Hourly Weather - Clear - 3:00 AM Grantfork, IL Hourly Weather - Clear - 4:00 AM Grantfork, IL Hourly Weather - Clear - 5:00 AM Grantfork, IL Hourly Weather - Mostly Clear - 6:00 AM Grantfork, IL Hourly Weather - Mostly Clear - 7:00 AM
Mostly Clear Clear Clear Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Mostly Clear Mostly Clear
80°F27°C 86°F30°C 92°F33°C 94°F34°C 97°F36°C 99°F37°C 99°F37°C 99°F37°C 99°F37°C 96°F36°C 92°F33°C 89°F32°C 86°F30°C 84°F29°C 81°F27°C 80°F27°C 79°F26°C 78°F26°C 77°F25°C 75°F24°C 74°F23°C 74°F23°C 74°F23°C 74°F23°C
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0% 0% 0% 0% 0% 0% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 2% 2% 2% 2% 2% 2%
72°F22°C 74°F23°C 75°F24°C 74°F23°C 72°F22°C 71°F22°C 70°F21°C 69°F21°C 68°F20°C 68°F20°C 69°F21°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 70°F21°C 71°F22°C 71°F22°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C
77% 68% 58% 53% 45% 41% 39% 38% 37% 40% 47% 52% 57% 63% 69% 72% 77% 79% 79% 84% 84% 84% 84% 84%
SSE SSE SW SW SSE SSE SSE S S S S SSE SSE SSE SSE SSE S S S S S S S S
5 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 5 mph 5 mph 5 mph 3 mph 3 mph 3 mph 4 mph 4 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
Clouds
Temperature
Precip. Type
POP
Dewpoint
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Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KALN model statistics.

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Prob Precip % = Probability of Precipitation.

Grantfork 36 Hour Forecast

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

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