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Grantfork, Illinois Weather Forecast
Grantfork, Illinois Weather
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Weather Forecast for Grantfork, Illinois : Madison County
Issued: 3:16 am CST Nov 5, 2025 Latitude: 38.8300469 Longitude: -89.6656453 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Veterans Day
Cloudy on Overnight Sunny on Wednesday Sunny on Thursday 30% chance of rain on Friday 20% chance of rain on Saturday Mostly Sunny on Sunday Sunny on Monday Mostly Sunny on Veterans Day
Low: 50°F High: 68°F High: 63°F High: 71°F High: 64°F High: 44°F High: 43°F High: 53°F
Low: 36°F Low: 50°F Low: 41°F Low: 34°F Low: 23°F Low: 25°F  
Cloudy Sunny Sunny Rain Rain Mostly Sunny Sunny Mostly Sunny
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Current Conditions at
ALTON - (KALN)
55°
Clear
as of 3:15 AM CST
Rel. Humidity: 71%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SCOTT AFB - (KBLV)
54°
Clear
as of 2:55 AM CST
Rel. Humidity: 81%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
8 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
LITCHFIELD MUNI ARP - (K3LF)
48°
Clear
as of 3:15 AM CST
Rel. Humidity: 87%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
7 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
59°
Clear
as of 2:53 AM CST
Rel. Humidity: 62%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
10 MPH
200° South
Cloud Level(s): Clear
Cloudy on Overnight Overnight... Partly cloudy, with a low around 50. Southwest wind around 11 mph, with gusts as high as 20 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 68. Southwest wind 9 to 15 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Clear on Wednesday Night Wednesday Night... Clear, with a low around 36. North wind 5 to 7 mph becoming light and variable.
Sunny on Thursday Thursday... Sunny, with a high near 63. East wind 5 to 14 mph becoming southeast in the afternoon.
30% chance of rain Thursday Night Thursday Night... A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 50. Southeast wind 9 to 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
30% chance of rain Friday Friday... A 30 percent chance of rain before noon. Mostly sunny, with a high near 71.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 41.
20% chance of rain Saturday Saturday... A 20 percent chance of rain after noon. Mostly sunny, with a high near 64.
30% chance of rain Saturday Night Saturday Night... A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 34.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 44.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 23.
Sunny on Monday Monday... Sunny, with a high near 43.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 25.
Mostly Sunny on Veterans Day Veterans Day... Mostly sunny, with a high near 53.
Current Radar Image


Sun Almanac for Grantfork, Illinois
Sunrise: 06:31 AM
Sunset: 4:54 PM
Civil Sunrise:06:03 AM
Civil Sunset: 5:22 PM
Nautical Sunrise: 05:31 AM
Nautical Sunset: 5:53 PM
Astro Sunrise: 05:00 AM
Astro Sunset: 6:24 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.