Grafton, Illinois Weather
No Watches or Warnings for Grafton
Issued: 12:56 am CST Dec 21, 2025 Latitude: 38.9700484 Longitude: -90.4315046 View on Google Maps
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Current Conditions at
ST CHARLES - (KSET)
36°
Clear
as of 12:54 AM CST
Rel. Humidity: 43%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
28°
Mostly Cloudy
as of 12:51 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Cloud Level(s): Few at 15000ft, Broken at 25000ft
Current Conditions at
ALTON - (KALN)
34°
Clear
as of 1:15 AM CST
Rel. Humidity: 50%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
SPIRIT OF ST LOUIS - (KSUS)
27°
Clear
as of 12:54 AM CST
Rel. Humidity: 73%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Cloud Level(s): Clear
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Overnight... Partly cloudy, with a low around 27. North wind 3 to 5 mph. |
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Sunday... Mostly sunny, with a high near 42. Light and variable wind becoming southeast 5 to 7 mph in the morning. |
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Sunday Night... Partly cloudy, with a low around 31. Southeast wind 6 to 8 mph. |
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Monday... Partly sunny, with a high near 51. South wind 8 to 10 mph. |
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Monday Night... Partly cloudy, with a low around 44. South wind 5 to 8 mph. |
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Tuesday... Sunny, with a high near 60. |
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Tuesday Night... Partly cloudy, with a low around 43. |
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Wednesday... Cloudy, with a high near 66. |
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Wednesday Night... Partly cloudy, with a low around 55. |
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Christmas Day... Sunny, with a high near 72. |
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Thursday Night... Mostly cloudy, with a low around 51. |
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Friday... Partly sunny, with a high near 64. |
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Friday Night... Mostly cloudy, with a low around 43. |
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Saturday... Mostly cloudy, with a high near 55. |
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Current Radar Image
Sun Almanac for Grafton, Illinois
Sunrise: 07:17 AM
Sunset: 4:43 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:13 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:19 PM
Illinois' Current Temperatures
Illinois' Satellite Image
Illinois' Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 7013 locations
in the contiguous United States |
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High
Temp |
79° |
Keathley C 875, Louisiana
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Low
Temp |
-9° |
Longville, Minnesota
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Wind
Speed |
35mph |
Pontiac, Michigan
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Wind
Gust |
49mph |
Grand Marais, The Bay Of, Minnesota
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Wind
Chill |
-19° |
Duluth Intl, Minnesota
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High
Pressure |
30.42Hg |
Salida Mountain, Colorado
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Low
Pressure |
29.34Hg |
Charlie, Montana
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| # Locations Reporting Snow |
18 |
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| # Locations Reporting Rain |
35 |
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| # Locations Reporting Fog |
29 |
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| Average Temperature in the Contiguous USA |
36° |
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National Weather Service for official information.
