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Putnam, Illinois Weather Forecast
Putnam, Illinois Weather
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Weather Forecast for Putnam, Illinois : Putnam County
Issued: 2:11 pm CST Dec 17, 2025 Latitude: 41.1850366 Longitude: -89.3964789 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Sunny on This Afternoon 50% chance of rain on Tonight 100% chance of rain on Thursday Mostly Sunny on Friday Mostly Cloudy on Saturday Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday
High: 39°F Low: 46 °F High: 48 °F High: 30°F High: 46°F High: 35°F High: 41°F High: 48°F
Low: 13°F Low: 23°F Low: 20°F Low: 23°F Low: 34°F  
Sunny Rain Rain Mostly Sunny Mostly Cloudy Sunny Partly Sunny Partly Sunny
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Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
39°
Clear
as of 2:15 PM CST
Rel. Humidity: 69%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
7 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
PERU - (KVYS)
39°
Clear
as of 2:15 PM CST
Rel. Humidity: 75%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
7 MPH
090° East
Cloud Level(s): Clear
Current Conditions at
PEORIA - (KPIA)
41°
Clear
as of 1:54 PM CST
Rel. Humidity: 65%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
8 MPH
190° South
Cloud Level(s): Clear
Current Conditions at
STERLING ROCK - (KSQI)
36°
Clear
as of 1:56 PM CST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
3 MPH
080° East
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny, with a high near 39. Southeast wind around 5 mph.

50% chance of rain Tonight Tonight... A 50 percent chance of rain after 3am. Increasing clouds, with a temperature rising to around 46 by 5am. South wind 5 to 15 mph, with gusts as high as 35 mph.

100% chance of rain Thursday Thursday... Rain before noon, then a chance of showers between noon and 4pm. Temperature rising to near 48 by 8am, then falling to around 33 during the remainder of the day. Breezy, with a south wind 20 to 25 mph becoming west in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

30% chance of snow Thursday Night Thursday Night... Scattered snow showers, mainly before 7pm. Mostly cloudy, with a low around 13. Wind chill values as low as -5. Breezy, with a west wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 30.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 23.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 46.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 20.

Sunny on Sunday Sunday... Sunny, with a high near 35.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 23.

Partly Sunny on Monday Monday... Partly sunny, with a high near 41.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 34.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 48.

Current Radar Image


Sun Almanac for Putnam, Illinois
Sunrise: 07:18 AM
Sunset: 4:30 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:36 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:10 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.