National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Mostly Cloudy and Breezy

55°F

13°C

Humidity 53%
Wind Speed SW 22 G 30 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 30 Mar 9:54 am EDT
Extended Forecast for

Revloc PA

  • Today

    Today: A slight chance of showers before 2pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 61. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 61 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 55. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 71. Southwest wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly after 2am. Some of the storms could be severe. Mostly cloudy, with a low around 61. Southwest wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: Showers and thunderstorms before 11am, then showers and possibly a thunderstorm, mainly after 11am. Some of the storms could be severe. High near 65. West wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Severe
    Thunderstorms
    then Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely

Detailed Forecast

Today
A slight chance of showers before 2pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 61. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 55. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 71. Southwest wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms, mainly after 2am. Some of the storms could be severe. Mostly cloudy, with a low around 61. Southwest wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms before 11am, then showers and possibly a thunderstorm, mainly after 11am. Some of the storms could be severe. High near 65. West wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Friday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Revloc PA
 40.48°N 78.76°W (Elev. 2060 ft)
Last Update:
10:12 am EDT Mar 30, 2026
Forecast Valid:
10am EDT Mar 30, 2026-6pm EDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation