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Hazardous Weather Conditions

No active alerts for JOHNSTON CITY, ILLINOIS

Current Conditions: JOHNSTON CITY, ILLINOIS

Cloudy


42.1 F
Last Updated on Mar 1 2026, 01:35 AM CST
Humidity: 64%
Wind Speed: 10.3 mph
Barometer: 30.17 in
Dewpoint: 30.9 F
Visibility: 10.00 mi
Precip: --
Heat Index: NA
Wind Chill: 36.1 F
Current conditions at:

MARION REGIONAL (KMWA)

Lat: 37.75 Lon: -89.02

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5 Day Forecast for JOHNSTON CITY, ILLINOIS (62951)

Sunday
Slight Chance of Rain
High 50 °F
Sunday
Night
Rain/Snow Mix Likely
Low 37 °F
Monday
Rain Likely
High 48 °F
Monday
Night
Chance of Rain
Low 44 °F
Tuesday
Chance of Rain
High 71 °F
Tuesday
Night
T-storms Likely
Low 59 °F
Wednesday
T-storms Likely
High 71 °F
Wednesday
Night
Rain Likely
Low 59 °F
Thursday
T-storms Likely
High 73 °F



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Observation History for JOHNSTON CITY, 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)
01:35 AM CST 10.3 10.00 Cloudy -- 42.1 30.9 64% 36.1 NA 30.17 1021.7
01:15 AM CST 9.2 10.00 Cloudy -- 44.1 32.0 62% 39.0 NA 30.16 1021.3
12:55 AM CST 15.0 10.00 Mostly Cloudy -- 45.9 32.9 60% 39.4 NA 30.15 1021.0
12:35 AM CST 12.8 10.00 Mostly Cloudy -- NULL 34.0 % NA NA 30.13 1020.3
12:15 AM CST 10.3 10.00 Partly Cloudy -- 51.1 36.1 56% NA NA 30.12 1019.7
11:55 PM CST G 19.7 10.00 Partly Cloudy -- 52.7 36.5 54% NA NA 30.10 1019.3
11:35 PM CST 11.4 10.00 Partly Cloudy -- 54.7 37.6 52% NA NA 30.08 1018.6
11:15 PM CST 10.3 10.00 Mostly Cloudy -- 56.1 37.9 50% NA NA 30.07 1018.3
10:55 PM CST 10.00 Cloudy -- 59.9 37.8 44% NA NA 30.07 1018.3
10:35 PM CST 0.0 10.00 Light Rain -- 61.9 37.9 41% NA NA 30.06 1018.0
10:15 PM CST 0.0 10.00 Cloudy -- 60.1 40.3 48% NA NA 30.04 1017.3
09:55 PM CST 0.0 10.00 Cloudy -- 57.7 41.4 54% NA NA 30.04 1017.3
09:35 PM CST 4.7 10.00 Cloudy -- 56.5 41.5 57% NA NA 30.03 1016.9
09:15 PM CST 0.0 10.00 Mostly Cloudy -- 57.2 40.1 53% NA NA 30.03 1016.9
08:55 PM CST 0.0 10.00 Partly Cloudy -- 58.6 38.8 48% NA NA 30.02 1016.6
08:35 PM CST S 6.9 10.00 Light Rain -- 57.6 40.6 53% NA NA 30.02 1016.6
08:15 PM CST 4.7 10.00 Cloudy -- 61.7 37.4 40% NA NA 30.02 1016.6
07:55 PM CST S 4.7 10.00 Light Rain -- 58.3 39.7 50% NA NA 30.02 1016.6
07:35 PM CST 3.4 10.00 Cloudy -- 60.8 37.9 43% NA NA 30.02 1016.6
07:15 PM CST 0.0 10.00 Cloudy -- 62.1 36.9 39% NA NA 30.01 1016.3
05:45 PM CST 0.0 10.00 Cloudy -- 60.8 42.8 51% NA NA 30.01 1016.3
04:45 PM CST 0.0 10.00 Mostly Cloudy -- 66.2 41.0 40% NA NA 29.99 1015.6
03:45 PM CST 4.7 10.00 Cloudy -- 66.2 37.4 35% NA NA 29.99 1015.6
02:45 PM CST NW 3.4 10.00 Mostly Cloudy -- 68.0 35.6 30% NA NA 30.00 1015.9

Regional Weather Observation

MARION REGIONAL (KMWA)

Cloudy
42.1 F

CARBONDALE/MURPH (KMDH)

Cloudy
60.8 F

SPARTA (KSAR)

Clear
32.9 F

MOUNT VERNON (KMVN)

Mostly Clear
35.6 F

CENTRALIA (KENL)

Clear
32.2 F

PERRYVILLE (KPCD)

Partly Cloudy
35.8 F

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