Colchester, Illinois Weather
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Weather Forecast for Colchester, Illinois : McDonough County
Issued: 3:01 am CDT Jun 4, 2025 Latitude: 40.4264306 Longitude: -90.7926324 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
80% chance of thunderstorms on Overnight 60% chance of thunderstorms on Wednesday Mostly Sunny on Thursday 50% chance of on Friday Mostly Sunny on Saturday 40% chance of rain on Sunday Sunny on Monday Mostly Sunny on Tuesday
Low: 65°F High: 71°F High: 77°F High: 75°F High: 77°F High: 81°F High: 76°F High: 78°F
Low: 56°F Low: 59°F Low: 58°F Low: 58°F Low: 58°F Low: 54°F  
Thunderstorms Thunderstorms Mostly Sunny Partly Sunny Mostly Sunny Rain Sunny Mostly Sunny
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Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
64°
Cloudy
Light Rain
as of 3:35 AM CDST
Rel. Humidity: 100%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: MVFR
Wind Data
8 MPH
230° Southwest
Cloud Level(s): Scattered at 400ft, Broken at 1900ft, Solid Overcast at 9500ft
Current Conditions at
FORT MADISON - (KFSW)
61°
Cloudy
Light Drizzle Mist
as of 3:35 AM CDST
Rel. Humidity: 100%
Dew Point: 61°F
Visibility: 2 Miles
Pressure: 29.90 in.
Flight Rule: LIFR
Wind Data
8 MPH
270° West
Cloud Level(s): Solid Overcast at 300ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
61°
Cloudy
Mist
as of 3:35 AM CDST
Rel. Humidity: 100%
Dew Point: 61°F
Visibility: 2 1/2 Miles
Pressure: 29.90 in.
Flight Rule: LIFR
Wind Data
7 MPH
320° Northwest
Cloud Level(s): Broken at 400ft, Solid Overcast at 800ft
80% chance of thunderstorms Overnight Overnight... Showers and possibly a thunderstorm. Steady temperature around 65. Northwest wind around 5 mph. Chance of precipitation is 80%.
60% chance of thunderstorms Wednesday Wednesday... Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 71. North wind around 10 mph. Chance of precipitation is 60%.
Morning Fog on Wednesday Night Wednesday Night... Patchy smoke after 1am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 56. Northeast wind 5 to 10 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 77. Northeast wind 5 to 10 mph.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 59.
50% chance of Friday Friday... A 50 percent chance of showers. Partly sunny, with a high near 75.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 58.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 77.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 58.
40% chance of rain Sunday Sunday... A 40 percent chance of showers after 1pm. Sunny, with a high near 81.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 58.
Sunny on Monday Monday... Sunny, with a high near 76.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 54.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 78.
Current Radar Image


Sun Almanac for Colchester, Illinois
Sunrise: 05:34 AM
Sunset: 8:29 PM
Civil Sunrise:05:01 AM
Civil Sunset: 9:02 PM
Nautical Sunrise: 04:20 AM
Nautical Sunset: 9:43 PM
Astro Sunrise: 03:32 AM
Astro Sunset: 10:31 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.