Monticello, Illinois Weather
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Weather Forecast for Monticello, Illinois : Piatt County
Issued: 12:42 pm CDT Jun 2, 2025 Latitude: 40.0278116 Longitude: -88.5733979 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Smoke on This Afternoon Smoke on Tonight Mostly Sunny on Tuesday 80% chance of thunderstorms on Wednesday 50% chance of thunderstorms on Thursday 50% chance of thunderstorms on Friday Mostly Sunny on Saturday 20% chance of  on Sunday
High: 85°F Low: 65°F High: 89°F High: 81°F High: 80°F High: 79°F High: 78°F High: 80°F
Low: 69°F Low: 63°F Low: 63°F Low: 59°F Low: 60°F  
Smoke Smoke Mostly Sunny Thunderstorms Thunderstorms Thunderstorms Mostly Sunny Partly Sunny
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Current Conditions at
CHAMPAIGN - (KCMI)
84°
Clear
as of 12:53 PM CDST
Rel. Humidity: 23%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 23 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
DECATUR - (KDEC)
82°
Clear
as of 12:54 PM CDST
Rel. Humidity: 30%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 20 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
RANTOUL - (KTIP)
81°
Clear
as of 12:55 PM CDST
Rel. Humidity: 24%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 22 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
BLOOMINGTON - (KBMI)
81°
Clear
as of 12:56 PM CDST
Rel. Humidity: 30%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 23 MPH
180° South
Cloud Level(s): Clear
Smoke on This Afternoon This Afternoon... Patchy smoke. Mostly sunny, with a high near 85. South wind 10 to 13 mph, with gusts as high as 16 mph.

Smoke on Tonight Tonight... Patchy smoke before 10pm. Partly cloudy, with a low around 65. South wind 10 to 13 mph, with gusts as high as 18 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 89. Breezy, with a south southwest wind 14 to 23 mph, with gusts as high as 34 mph.

40% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 69. South wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

80% chance of thunderstorms Wednesday Wednesday... Showers likely, then showers and possibly a thunderstorm after 10am. High near 81. Southwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

70% chance of thunderstorms Wednesday Night Wednesday Night... Showers likely and possibly a thunderstorm. Cloudy, with a low around 63. Southwest wind 7 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

50% chance of thunderstorms Thursday Thursday... A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. North wind around 8 mph becoming west southwest in the afternoon. Chance of precipitation is 50%.

50% chance of thunderstorms Thursday Night Thursday Night... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.

50% chance of thunderstorms Friday Friday... A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 79. Chance of precipitation is 50%.

30% chance of thunderstorms Friday Night Friday Night... A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 78.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 60.

20% chance of  Sunday Sunday... A chance of showers. Partly sunny, with a high near 80.

Current Radar Image


Sun Almanac for Monticello, Illinois
Sunrise: 05:27 AM
Sunset: 8:18 PM
Civil Sunrise:04:55 AM
Civil Sunset: 8:50 PM
Nautical Sunrise: 04:14 AM
Nautical Sunset: 9:31 PM
Astro Sunrise: 03:27 AM
Astro Sunset: 10:18 PM
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