Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

55°F

13°C

Humidity	44%
Wind Speed	S 9 mph
Barometer	29.89 in (1011.8 mb)
Dewpoint	33°F (1°C)
Visibility	10.00 mi
Wind Chill	53°F (12°C)
Last update	13 May 5:54 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles ESE Twin Rocks PA

Today
High: 61 °F
Showers
Likely then
Showers
Tonight
Low: 42 °F
Showers then
Mostly Cloudy
Thursday
High: 48 °F
Showers
Likely
Thursday Night
Low: 42 °F
Chance
Showers
Friday
High: 63 °F
Partly Sunny
Friday Night
Low: 48 °F
Mostly Cloudy
Saturday
High: 75 °F
Mostly Sunny
then Chance
Showers
Saturday Night
Low: 58 °F
Chance
Showers then
Partly Cloudy
Sunday
High: 83 °F
Mostly Sunny

Detailed Forecast

Today

Showers likely, then showers and possibly a thunderstorm after 2pm. High near 61. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 10pm, then a slight chance of showers after 5am. Low around 42. Northwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers likely, mainly after 1pm. Mostly cloudy, with a high near 48. West wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

A chance of showers before 2am. Mostly cloudy, with a low around 42. Northwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday

Partly sunny, with a high near 63. Northwest wind around 10 mph, with gusts as high as 20 mph.

Friday Night

Mostly cloudy, with a low around 48.

Saturday

A chance of showers after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.

Saturday Night

A chance of showers before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 83.

Sunday Night

Partly cloudy, with a low around 60.