St Clairsville, PA Current Weather Conditions

Current weather observations and 72-hour history for St Clairsville, PA.  •  View 5-Day Forecast ›

▼Current Conditions — St Clairsville, PA

JOHNSTOWN (KJST)

Clear

41.0 F

Humidity:45%
Wind Speed: 0.0 mph
Barometer:30.46 in
Dewpoint:21.2 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Oct 19 2026, 04:30 AM EDT
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▼State Weather Snapshot — Pennsylvania

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▼Hourly Observation History — St Clairsville, PA

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)
04:30 AM EDT 0.0 10.00 Clear -- 41.0 21.2 45% NA NA 30.46 1031.5
04:20 AM EDT 3.4 10.00 Clear -- 39.2 21.2 48% 37.0 NA 30.46 1031.5
04:15 AM EDT SW 4.6 10.00 Clear -- 39.2 21.2 48% 35.8 NA 30.46 1031.5
04:10 AM EDT SW 4.6 10.00 Clear -- 39.2 21.2 48% 35.8 NA 30.46 1031.5
04:00 AM EDT 5.7 10.00 Clear -- 41.0 19.4 42% 37.0 NA 30.46 1031.5
03:55 AM EDT SW 4.6 10.00 Clear -- 41.0 19.4 42% 37.9 NA 30.46 1031.5
03:25 AM EDT SW 3.4 10.00 Clear -- 39.2 24.8 56% 37.0 NA 30.46 1031.5
03:20 AM EDT 0.0 10.00 Clear -- 39.2 24.8 56% NA NA 30.46 1031.5
03:15 AM EDT 0.0 10.00 Clear -- 39.2 23.0 52% NA NA 30.46 1031.5
03:05 AM EDT 4.6 10.00 Clear -- 41.0 21.2 45% 37.9 NA 30.47 1031.8
02:55 AM EDT W 3.4 10.00 Clear -- 41.0 21.2 45% 39.0 NA 30.47 1031.8
02:45 AM EDT 0.0 10.00 Clear -- 41.0 21.2 45% NA NA 30.47 1031.8
02:40 AM EDT 3.4 10.00 Clear -- 41.0 23.0 48% 39.0 NA 30.47 1031.8
01:54 AM EDT 0.0 10.00 Clear -- NULL % NA NA 30.47 1031.8
01:00 AM EDT SW 4.6 10.00 Clear -- 42.8 19.4 39% 40.1 NA 30.48 1032.2
11:54 PM EDT 5.8 10.00 Clear -- NULL % NA NA 30.49 1032.5
11:40 PM EDT SW 5.7 10.00 Clear -- 44.6 % 41.4 NA 30.49 1032.5
11:05 PM EDT 6.9 10.00 Clear -- 44.6 % 40.6 NA 30.50 1032.8
11:00 PM EDT 5.7 10.00 Clear -- 44.6 23.0 42% 41.4 NA 30.50 1032.8
10:05 PM EDT 3.4 10.00 Clear -- 46.4 % 45.1 NA 30.50 1032.8
09:55 PM EDT SW 6.9 10.00 Clear -- 46.4 24.8 42% 43.0 NA 30.50 1032.8
09:50 PM EDT SW 5.7 10.00 Clear -- 46.4 24.8 42% 43.5 NA 30.50 1032.8
09:45 PM EDT SW 4.6 10.00 Clear -- 46.4 % 44.2 NA 30.50 1032.8
09:40 PM EDT SW 4.6 10.00 Clear -- 46.4 % 44.2 NA 30.51 1033.2

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