Thunderstorms and Heavy Rainfall from the Plains to the Mid-Atlantic

Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota from this afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding through 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.

Overcast

70°F

21°C

Humidity	90%
Wind Speed	SW 7 mph
Barometer	30.08 in (1017.1 mb)
Dewpoint	67°F (19°C)
Visibility	9.00 mi
Last update	7 Jul 8:54 am EDT

More Information:

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

Extended Forecast for

Johnstown PA

Today
High: 81 °F
Chance
Showers and
Patchy Fog
then Showers
Tonight
Low: 65 °F
Showers
Likely then
Mostly Cloudy
Wednesday
High: 81 °F
Slight Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 65 °F
Chance
T-storms then
Chance
Showers
Thursday
High: 82 °F
Showers
Thursday Night
Low: 66 °F
Chance
T-storms then
Chance
Showers
Friday
High: 81 °F
Showers
Likely then
Showers
Friday Night
Low: 64 °F
Showers
Saturday
High: 80 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. Patchy fog before 10am. High near 81. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 9pm. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Light and variable wind. Chance of precipitation is 40%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light south wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers, with thunderstorms also possible after 11am. High near 82. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Showers likely, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 90%.

Friday Night

Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 64. Chance of precipitation is 80%.

Saturday

A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

Sunday

A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 40%.

Sunday Night

Partly cloudy, with a low around 61.

Monday

A chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 30%.