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See Information about the Tornadoes of 14 June 2026

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Partly Cloudy

56°F

13°C

Humidity	93%
Wind Speed	SW 6 mph
Barometer	29.95 in (1013.3 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	21 Jun 4:54 am EDT

More Information:

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

Extended Forecast for

3 Miles N Summerhill PA

Dense Fog Advisory until June 21, 08:00am

Click here for hazard details and duration

Dense Fog Advisory

Dense Fog Advisory until June 21, 08:00am
NOW until 8:00am Sun
Dense Fog Advisory
Overnight
Low: 55 °F
Mostly Cloudy
Sunday
High: 72 °F
Partly Sunny
Sunday Night
Low: 58 °F
Mostly Cloudy
then Chance
Rain
Monday
High: 71 °F
Heavy Rain
Monday Night
Low: 57 °F
Showers
Tuesday
High: 72 °F
Chance
Showers then
Mostly Sunny
Tuesday Night
Low: 52 °F
Mostly Clear
Wednesday
High: 73 °F
Sunny

Detailed Forecast

Overnight

Mostly cloudy, with a low around 55. West wind around 5 mph.

Sunday

Partly sunny, with a high near 72. West wind 7 to 9 mph.

Sunday Night

A chance of rain, mainly after 3am. Mostly cloudy, with a low around 58. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Monday

A chance of rain and thunderstorms, then periods of rain and possibly a thunderstorm after 7am. Some of the storms could produce heavy rainfall. High near 71. Southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 57. West wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

A chance of showers before 8am. Partly sunny, with a high near 72. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night

Mostly clear, with a low around 52.

Wednesday

Sunny, with a high near 73.

Wednesday Night

Mostly clear, with a low around 57.

Thursday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 40%.