Pinckneyville, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Pinckneyville, IL.

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Current Conditions — Pinckneyville, IL

SPARTA (KSAR)

Clear

57.0 F
Humidity:60%
Wind Speed: 6.9 mph
Barometer:30.09 in
Dewpoint:43.3 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 05:15 AM CDT
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5-Day Forecast — Pinckneyville, IL

Wednesday

High 78 °F
Mostly Sunny
Wednesday
Night
Low 55 °F
Mostly Clear
Thursday

High 80 °F
Mostly Sunny
Thursday
Night
Low 62 °F
Chance of T-storms
Friday

High 75 °F
T-storms
Friday
Night
Low 55 °F
Chance of Showers
Saturday

High 75 °F
Slight Chance of Showers
Saturday
Night
Low 53 °F
Partly Cloudy
Sunday

High 75 °F
Isolated T-storm

Detailed Forecast — Pinckneyville, IL

Wednesday
Mostly Sunny. High near 78°F. Wind 8 to 12 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly Clear. Low around 55°F. Wind 6 to 7 mph, with gusts as high as 13 mph.
Thursday
Mostly Sunny. High near 80°F. Wind 7 to 15 mph, with gusts as high as 23 mph.
Thursday Night
Chance of Thunderstorms. Low around 62°F. Wind around 12 mph, with gusts as high as 21 mph.
Friday
Thunderstorms. High near 75°F. Wind 7 to 14 mph, with gusts as high as 21 mph.
Friday Night
Chance of Showers. Low around 55°F. Wind around 5 mph, with gusts as high as 10 mph.
Saturday
Slight Chance of Showers. High near 75°F. Wind 6 to 7 mph, with gusts as high as 13 mph.
Saturday Night
Partly Cloudy. Low around 53°F. Wind around 5 mph, with gusts as high as 10 mph.
Sunday
Isolated T-storm. High near 75°F. Wind 7 to 8 mph, with gusts as high as 15 mph.
Sunday Night
Chance of Thunderstorms. Low around 60°F. Wind around 9 mph, with gusts as high as 17 mph.
Monday
Thunderstorms Likely. High near 77°F. Wind 12 to 16 mph, with gusts as high as 23 mph.
Monday Night
Chance of Showers. Low around 53°F. Wind around 9 mph, with gusts as high as 17 mph.
Tuesday
Mostly Sunny. High near 71°F. Wind 7 to 10 mph, with gusts as high as 16 mph.
IL Radar
Current Radar • IL
Day 1 Outlook • April 22, 2026

Observation History — Pinckneyville, IL

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)
05:15 AM CDT 6.9 10.00 Clear -- 57.0 43.3 60% NA NA 30.09 1019.0
04:35 AM CDT 6.9 10.00 Clear -- 58.3 43.0 57% NA NA 30.09 1019.0
04:15 AM CDT 6.9 10.00 Clear -- 58.1 43.2 57% NA NA 30.08 1018.6
03:55 AM CDT 6.9 10.00 Clear -- 58.6 43.0 56% NA NA 30.08 1018.6
03:35 AM CDT 6.9 10.00 Clear -- 59.2 43.0 55% NA NA 30.08 1018.6
03:15 AM CDT S 8.1 10.00 Clear -- 59.4 43.0 55% NA NA 30.08 1018.6
02:55 AM CDT S 8.1 10.00 Clear -- 59.9 43.0 54% NA NA 30.08 1018.6
02:35 AM CDT 5.8 10.00 Clear -- 59.9 43.2 54% NA NA 30.08 1018.6
02:15 AM CDT S 4.7 10.00 Clear -- 59.9 43.3 54% NA NA 30.08 1018.6
01:55 AM CDT 4.7 10.00 Clear -- 61.7 43.0 50% NA NA 30.08 1018.6
01:35 AM CDT 3.4 10.00 Clear -- 62.2 42.8 49% NA NA 30.08 1018.6
01:15 AM CDT 6.9 10.00 Clear -- 62.6 42.8 48% NA NA 30.08 1018.6
12:55 AM CDT 6.9 10.00 Clear -- 63.3 42.6 47% NA NA 30.08 1018.6
12:35 AM CDT 8.1 10.00 Clear -- 63.9 42.4 46% NA NA 30.08 1018.6
12:15 AM CDT 6.9 10.00 Clear -- 64.2 42.4 45% NA NA 30.07 1018.3
11:55 PM CDT 8.1 10.00 Clear -- 64.6 42.4 44% NA NA 30.07 1018.3
11:35 PM CDT 8.1 10.00 Clear -- 64.8 42.3 44% NA NA 30.07 1018.3
11:15 PM CDT 8.1 10.00 Clear -- 65.3 42.3 43% NA NA 30.07 1018.3
10:55 PM CDT 8.1 10.00 Clear -- 66.0 41.9 41% NA NA 30.06 1018.0
10:35 PM CDT 10.3 7.00 Clear -- 66.2 41.9 41% NA NA 30.06 1018.0
10:15 PM CDT 9.2 10.00 Clear -- 66.7 42.4 41% NA NA 30.06 1018.0
09:55 PM CDT 10.3 10.00 Clear -- 68.9 42.6 39% NA NA 30.06 1018.0
09:35 PM CDT 10.3 G 16.1 10.00 Clear -- 69.4 42.3 37% NA NA 30.06 1018.0
09:15 PM CDT SW 12.8 G 19.7 10.00 Clear -- 70.2 41.4 35% NA 68.5 30.05 1017.6

Regional Weather Observation

SPARTA (KSAR)

Clear
57.0 F

SCOTT AFB/BELLEV (KBLV)

Clear
58.3 F

CENTRALIA (KENL)

Mostly Cloudy
58.8 F

PERRYVILLE (KPCD)

Clear
NULL F

CAHOKIA/ST LOUIS (KCPS)

Clear
60.8 F

CARBONDALE/MURPH (KMDH)

Clear
55.4 F
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