Keys, Illinois Weather
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Weather Forecast for Keys, Illinois : Sangamon County
Issued: 2:41 pm CDT Jul 30, 2025 Latitude: 39.7800501 Longitude: -89.5731519 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
40% chance of thunderstorms on This Afternoon 50% chance of thunderstorms on Tonight 30% chance of thunderstorms on Thursday Sunny on Friday Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday 20% chance of thunderstorms on Tuesday
High: 74°F Low: 70°F High: 77°F High: 78°F High: 77°F High: 79°F High: 81°F High: 81°F
Low: 60°F Low: 57°F Low: 58°F Low: 61°F Low: 65°F  
Thunderstorms Thunderstorms Thunderstorms Sunny Sunny Mostly Sunny Partly Sunny Thunderstorms
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Current Conditions at
SPRINGFIELD - (KSPI)
77°
Clear
as of 1:52 PM CDST
Rel. Humidity: 83%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Clear
Current Conditions at
LOGAN COUNTY AIRPORT - (KAAA)
77°
Clear
as of 2:15 PM CDST
Rel. Humidity: 100%
Dew Point: 77°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
6 MPH
060° Northeast
Cloud Level(s): Clear
Current Conditions at
DECATUR - (KDEC)
75°
Mostly Clear
as of 1:54 PM CDST
Rel. Humidity: 94%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
12 MPH
060° Northeast
Cloud Level(s): Few at 5000ft, Few at 11000ft
40% chance of thunderstorms This Afternoon This Afternoon... A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a steady temperature around 74. South wind 5 to 7 mph becoming east northeast.
50% chance of thunderstorms Tonight Tonight... A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. North wind 3 to 6 mph. Chance of precipitation is 50%.
30% chance of thunderstorms Thursday Thursday... A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. North northeast wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 60. North northeast wind 8 to 11 mph, with gusts as high as 18 mph.
Sunny on Friday Friday... Sunny, with a high near 78. Northeast wind 8 to 11 mph, with gusts as high as 18 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 57. Northeast wind 6 to 8 mph, with gusts as high as 15 mph.
Sunny on Saturday Saturday... Sunny, with a high near 77. East northeast wind 5 to 7 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 58.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 79.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 61.
Partly Sunny on Monday Monday... Partly sunny, with a high near 81.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 65.
20% chance of thunderstorms Tuesday Tuesday... A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Current Radar Image


Sun Almanac for Keys, Illinois
Sunrise: 05:56 AM
Sunset: 8:13 PM
Civil Sunrise:05:26 AM
Civil Sunset: 8:44 PM
Nautical Sunrise: 04:48 AM
Nautical Sunset: 9:21 PM
Astro Sunrise: 04:07 AM
Astro Sunset: 10:02 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.