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Derby, Missouri Weather Forecast
Derby, Missouri Weather
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Weather Forecast for Derby, Missouri : St. Francois County
Issued: 5:06 am CST Dec 15, 2025 Latitude: 37.825051 Longitude: -90.5387361 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Sunny on Today Mostly Clear on Tonight Sunny on Tuesday Sunny on Wednesday 60% chance of thunderstorms on Thursday Mostly Sunny on Friday Mostly Sunny on Saturday Partly Sunny on Sunday
High: 41°F Low: 26°F High: 50°F High: 56°F High: 57°F High: 42°F High: 57°F High: 51°F
Low: 34°F Low: 45°F Low: 20°F Low: 31°F Low: 35°F  
Sunny Mostly Clear Sunny Sunny Thunderstorms Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
SPARTA - (KSAR)
12°
Clear
as of 7:35 AM CST
Rel. Humidity: 66%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.50 in.
Flight Rule: VFR
Wind Data
6 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
12°
Clear
as of 6:53 AM CST
Rel. Humidity: 66%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.48 in.
Flight Rule: VFR
Wind Data
8 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
SPIRIT OF ST LOUIS - (KSUS)
12°
Clear
as of 6:54 AM CST
Rel. Humidity: 61%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 41. Southwest wind 8 to 13 mph, with gusts as high as 28 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 26. Southwest wind around 7 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 50. South wind 7 to 11 mph, with gusts as high as 21 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34. South wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.

Sunny on Wednesday Wednesday... Sunny, with a high near 56. Calm wind becoming south 5 to 8 mph in the afternoon.

40% chance of rain Wednesday Night Wednesday Night... A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 45.

60% chance of thunderstorms Thursday Thursday... Rain likely and possibly a thunderstorm before 9am, then rain likely between 9am and noon. Partly sunny, with a high near 57. Chance of precipitation is 60%.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 20.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 42.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 31.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 57.

20% chance of rain Saturday Night Saturday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 35.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 51.

Current Radar Image


Sun Almanac for Derby, Missouri
Sunrise: 07:11 AM
Sunset: 4:44 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 5:47 PM
Astro Sunrise: 05:36 AM
Astro Sunset: 6:19 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.