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Falmouth, Illinois Weather Forecast
Falmouth, Illinois Weather
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Weather Forecast for Falmouth, Illinois : Jasper County
Issued: 2:36 pm CST Dec 17, 2025 Latitude: 39.0547641 Longitude: -88.1455939 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Mostly Sunny on This Afternoon 30% chance of rain on Tonight 100% chance of rain on Thursday Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday
High: 51°F Low: 49 °F High: 54 °F High: 34°F High: 50°F High: 39°F High: 44°F High: 54°F
Low: 21°F Low: 27°F Low: 23°F Low: 26°F Low: 37°F  
Mostly Sunny Rain Rain Sunny Partly Sunny Mostly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
EFFINGHAM COUNTY MEMORIAL - (K1H2)
50°
Clear
as of 2:35 PM CST
Rel. Humidity: 61%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
OLNEY-NOBLE AIRPORT - (KOLY)
54°
Clear
as of 2:30 PM CST
Rel. Humidity: 54%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
ROBINSON - (KRSV)
50°
Clear
as of 2:35 PM CST
Rel. Humidity: 71%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
6 MPH
040° Northeast
Cloud Level(s): Clear
Current Conditions at
MATTOON - (KMTO)
45°
Clear
as of 1:53 PM CST
Rel. Humidity: 65%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 51. East southeast wind around 6 mph.
30% chance of rain Tonight Tonight... A slight chance of showers before 3am, then a chance of showers after 5am. Increasing clouds, with a temperature rising to around 49 by 5am. Breezy, with a south wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 30%.
100% chance of rain Thursday Thursday... Showers, mainly before 3pm. Temperature rising to near 54 by noon, then falling to around 42 during the remainder of the day. Breezy, with a south wind 15 to 21 mph becoming west in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 21. Breezy, with a west wind 14 to 20 mph, with gusts as high as 29 mph.
Sunny on Friday Friday... Sunny, with a high near 34. West northwest wind 7 to 16 mph becoming south southwest in the afternoon. Winds could gust as high as 24 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 27. South wind 6 to 15 mph, with gusts as high as 24 mph.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 50. South wind 11 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 28 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 23.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 39.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 26.
Partly Sunny on Monday Monday... Partly sunny, with a high near 44.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 37.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 54.
Current Radar Image


Sun Almanac for Falmouth, Illinois
Sunrise: 07:06 AM
Sunset: 4:32 PM
Civil Sunrise:06:36 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:30 AM
Astro Sunset: 6:08 PM
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