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Day 1 Outlook • April 17, 2026
Day 2 Outlook • April 18, 2026
Day 3 Outlook • April 19, 2026
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dBZ 5
75

Hazardous Weather Conditions

  • No active alerts for MC LEANSBORO, ILLINOIS

Current Conditions: MC LEANSBORO, ILLINOIS

MOUNT VERNON (KMVN)

Partly Cloudy

73.4 F
Humidity:73%
Wind Speed:SW 10.4 mph
Barometer:29.97 in
Dewpoint:64.4 F
Visibility:10.00 mi
Precip:--
Heat Index:73.9 F
Wind Chill:NA
Apr 17 2026, 10:25 AM CDT
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5 Day Forecast for MC LEANSBORO, ILLINOIS (62859)

Friday

High 86 °F
Chance of T-storms
Friday
Night
Low 53 °F
T-storms Likely
Saturday

High 68 °F
T-storms
Saturday
Night
Low 39 °F
Slight Chance of Showers
Sunday

High 66 °F
Mostly Sunny
Sunday
Night
Low 42 °F
Mostly Clear
Monday

High 71 °F
Sunny
Monday
Night
Low 50 °F
Clear
Tuesday

High 78 °F
Partly Sunny

Detailed Forecast for MC LEANSBORO, ILLINOIS (62859)

Friday
Chance of Thunderstorms. High near 86°F. Wind 6 to 14 mph, with gusts as high as 22 mph.
Friday Night
Thunderstorms Likely. Low around 53°F. Wind 12 to 13 mph, with gusts as high as 23 mph.
Saturday
Thunderstorms. High near 68°F. Wind 12 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Slight Chance of Showers. Low around 39°F. Wind 5 to 9 mph, with gusts as high as 17 mph.
Sunday
Mostly Sunny. High near 66°F. Wind 6 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Mostly Clear. Low around 42°F. Wind around 3 mph, with gusts as high as 9 mph.
Monday
Sunny. High near 71°F. Wind 5 to 7 mph, with gusts as high as 12 mph.
Monday Night
Clear. Low around 50°F. Wind around 6 mph, with gusts as high as 14 mph.
Tuesday
Partly Sunny. High near 78°F. Wind 9 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly Clear. Low around 55°F. Wind around 7 mph, with gusts as high as 15 mph.
Wednesday
Mostly Sunny. High near 80°F. Wind 6 to 12 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly Clear. Low around 59°F. Wind around 6 mph, with gusts as high as 12 mph.
Thursday
Isolated T-storm. High near 84°F. Wind 7 to 12 mph, with gusts as high as 18 mph.
IL Radar
Current Radar • IL
Day 1 Outlook • April 17, 2026

Observation History for MC LEANSBORO, ILLINOIS

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
10:25 AM CDT SW 10.4 10.00 Partly Cloudy -- 73.4 64.4 73% NA 73.9 29.97 1014.9
10:10 AM CDT 13.8 10.00 Partly Cloudy -- 73.4 62.6 69% NA 73.8 29.97 1014.9
09:45 AM CDT 13.8 10.00 Cloudy -- 69.8 62.6 78% NA NA 29.97 1014.9
09:30 AM CDT 12.7 10.00 Mostly Cloudy -- 69.8 60.8 73% NA NA 29.98 1015.2
09:20 AM CDT 10.00 Mostly Cloudy -- 69.8 60.8 73% NA NA 29.98 1015.2
09:10 AM CDT S 6.9 10.00 Mostly Cloudy -- 68.0 60.8 78% NA NA 29.98 1015.2
08:50 AM CDT 10.4 10.00 Partly Cloudy -- 66.2 60.8 83% NA NA 29.98 1015.2
08:35 AM CDT S 6.9 10.00 Clear -- 64.4 59.0 83% NA NA 29.98 1015.2
08:25 AM CDT S 6.9 10.00 Mostly Clear -- 64.4 59.0 83% NA NA 29.98 1015.2
08:15 AM CDT S 5.7 10.00 Mostly Clear -- 64.4 59.0 83% NA NA 29.98 1015.2
08:00 AM CDT S 4.6 10.00 Clear -- 62.6 57.2 83% NA NA 29.98 1015.2
07:50 AM CDT S 4.6 10.00 Clear -- 62.6 57.2 83% NA NA 29.98 1015.2
07:30 AM CDT S 4.6 10.00 Partly Cloudy -- 62.6 57.2 83% NA NA 29.98 1015.2
07:20 AM CDT S 4.6 10.00 Mostly Cloudy -- 62.6 57.2 83% NA NA 29.98 1015.2
07:10 AM CDT S 4.6 10.00 Cloudy -- 60.8 57.2 88% NA NA 29.98 1015.2
07:00 AM CDT 3.4 10.00 Cloudy -- 60.8 57.2 88% NA NA 29.97 1014.9
06:45 AM CDT S 4.6 10.00 Mostly Cloudy -- 60.8 57.2 88% NA NA 29.97 1014.9
06:35 AM CDT S 4.6 10.00 Mostly Cloudy -- 60.8 55.4 82% NA NA 29.97 1014.9
06:20 AM CDT 0.0 10.00 Partly Cloudy -- 59.0 55.4 88% NA NA 29.96 1014.6
06:15 AM CDT 0.0 10.00 Partly Cloudy -- 59.0 55.4 88% NA NA 29.96 1014.6
06:05 AM CDT 0.0 10.00 Mostly Cloudy -- 59.0 55.4 88% NA NA 29.96 1014.6
06:00 AM CDT 0.0 10.00 Mostly Cloudy -- 60.8 55.4 82% NA NA 29.96 1014.6
05:35 AM CDT 0.0 10.00 Cloudy -- 57.2 57.2 100% NA NA 29.96 1014.6
05:20 AM CDT 0.0 10.00 Mostly Cloudy -- 57.2 55.4 94% NA NA 29.96 1014.6

Regional Weather Observation

MOUNT VERNON (KMVN)

Partly Cloudy
73.4 F

FAIRFIELD (KFWC)

Clear
72.3 F

SALEM/LECKRONE (KSLO)

Mostly Cloudy
73.2 F

FLORA (KFOA)

Clear
71.6 F

OLNEY-NOBLE (KOLY)

Cloudy
69.6 F

CENTRALIA (KENL)

Mostly Cloudy
73.0 F
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