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Derby, Illinois Weather Forecast
Derby, Illinois Weather
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Weather Forecast for Derby, Illinois : Saline County
Issued: 7:21 pm CST Jan 4, 2026 Latitude: 37.6289374 Longitude: -88.385598 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Clear on Tonight Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Rain on Thursday 20% chance of  on Friday Sunny on Saturday Mostly Sunny on Sunday
Low: 33°F High: 55°F High: 62°F High: 59°F High: 60°F High: 57°F High: 46°F High: 39°F
Low: 47°F Low: 39°F Low: 48°F Low: 49°F Low: 36°F Low: 26°F  
Mostly Clear Sunny Mostly Sunny Partly Sunny Rain Partly Sunny Sunny Mostly Sunny
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Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
34°
Clear
as of 7:35 PM CST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MARION - (KMWA)
39°
Clear
as of 7:35 PM CST
Rel. Humidity: 48%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
6 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
36°
Clear
as of 7:35 PM CST
Rel. Humidity: 59%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
HENDERSON CITY - (KEHR)
37°
Clear
as of 6:56 PM CST
Rel. Humidity: 51%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 33. Calm wind becoming south southwest around 6 mph after midnight.

Sunny on Monday Monday... Sunny, with a high near 55. South southwest wind 6 to 8 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 47. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 62. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 39. Light and variable wind.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 59. Calm wind.

30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 48. Calm wind becoming south around 6 mph after midnight.

Rain on Thursday Thursday... Showers likely. Mostly cloudy, with a high near 60. South southwest wind around 7 mph.

Rain on Thursday Night Thursday Night... Showers likely, mainly before midnight. Mostly cloudy, with a low around 49. South southwest wind around 8 mph.

20% chance of  Friday Friday... A chance of showers, mainly before noon. Partly sunny, with a high near 57. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.

20% chance of rain Friday Night Friday Night... A chance of showers. Partly cloudy, with a low around 36. West wind around 7 mph.

Sunny on Saturday Saturday... Sunny, with a high near 46. West wind 6 to 8 mph, with gusts as high as 18 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 26. West northwest wind around 7 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 39. West northwest wind around 7 mph.

Current Radar Image


Sun Almanac for Derby, Illinois
Sunrise: 07:09 AM
Sunset: 4:48 PM
Civil Sunrise:06:40 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 6:22 PM
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