Heavy Rain and Strong-to-Severe Thunderstorms from the Central Miss. Valley to the Mid-Atlantic

A slow-moving weather system in the eastern U.S. will focus showers and thunderstorms from the mid-Mississippi River Valley to the Mid-Atlantic on Thursday. Abundant moisture will allow occasionally heavy rainfall. Flash Flood Watches are in effect in these areas. Severe thunderstorms with damaging wind gusts and large hail will also be possible in this same area. Read More >

Current conditions at

Johnstown, Johnstown-Cambria County Airport (KJST)

Lat: 40.32° N Lon: 78.83° W Elev: 2283 ft.

A Few Clouds

75°F

24°C

Humidity 43%
Wind Speed Calm
Barometer 30.02 in (1014.6 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 27 Jul 11:54 pm EDT
Detailed forecast for

Somerset County

Overnight
Partly cloudy with a slight chance of showers and thunderstorms. Patchy fog. Lows in the mid 60s. West winds around 5 mph. Chance of rain 20 percent.
Thursday
Partly sunny in the morning...then becoming mostly cloudy. Patchy fog in the morning. A chance of showers and thunderstorms. Humid with highs in the upper 70s. West winds around 5 mph. Chance of rain 50 percent.
Thursday Night
Showers and thunderstorms likely. Humid with lows in the mid 60s. West winds around 5 mph. Chance of rain 70 percent.
Friday
Showers and thunderstorms likely...mainly in the morning. Humid with highs in the upper 70s. West winds around 5 mph. Chance of rain 70 percent.
Friday Night
Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. West winds around 5 mph. Chance of rain 50 percent.
Saturday
Mostly cloudy with a chance of showers and thunderstorms. Humid with highs in the mid 70s. Chance of rain 50 percent.
Saturday Night
Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 50 percent.
Sunday
Showers and thunderstorms likely...mainly in the afternoon. Humid with highs in the mid 70s. Chance of rain 60 percent.
Sunday Night
Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 50 percent.
Monday
Partly sunny with a chance of showers and thunderstorms. Highs in the mid 70s. Chance of rain 50 percent.
Monday Night
Mostly cloudy with a chance of showers and thunderstorms in the evening...then partly cloudy after midnight. Lows in the lower 60s. Chance of rain 50 percent.
Tuesday
Mostly sunny. Highs in the upper 70s.
Tuesday Night
Partly cloudy. Lows in the lower 60s.
Wednesday
Mostly sunny. Highs in the lower 80s.



Click Map For Forecast
1015 PM EDT WED JUL 27 2016
 
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