Area Conditions for Monticello, IL
 
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Temperature: 66 oF
Feels Like: 66 oF
Humidity: 87%
Barometer: 30
Dew Point: 62 oF
Wind Dir.: E
Wind Speed: 6 mph
Sunrise: 5:27
Sunset: 8:27
Observation: Thunderstorms
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As reported at Dave, IL at 6:00 AM

5-day Forecast for Monticello, IL
Date Fri
6/26		 Sat
6/27		 Sun
6/28		 Mon
6/29		 Tue
6/30
Weather Condition Thunder Storms Thunder Storms Thunder Storms Partly Cloudy Clear
Weather Thunder Storms Thunder Storms Thunder Storms Partly Cloudy Clear
Temperature (°F)
Low/High		 66/72 63/79 67/89 73/92 74/93
Feels Like (°F)
Low/High		 66/73 63/80 67/98 74/105 75/106
Dew Point (°F) 65 64 70 73 73
Humidity (%) 92 76 70 68 65
Wind Speed (mph) 8 5 10 11 10
Precipitation
Chance (%)		 80 52 68 - -
Precipitation
Amount (inches)
S=Snow, L=Liquid		 Rain
1.05		 Rain
0.12		 Rain
0.27		 None None
Evapo-
transpiration
(inches/day)		 0.09 0.13 0.21 0.27 0.3
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Bryce Anderson – DTN Meteorologist
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Heavy Rain Moving Into Midwest Friday

Scattered storms today; severe weather and heavy rain spread across the southern Midwest through Friday. » More DTN Weather Commentary
Posted at 12:01PM Thu Jun 25, 2026 CDT
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