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

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Light Rain Fog/Mist

52°F

11°C

Humidity 97%
Wind Speed N 5 mph
Barometer 30.17 in (1021.2 mb)
Dewpoint 51°F (11°C)
Visibility 4.00 mi
Wind Chill51°F (11°C)
Last update 21 May 2:54 am EDT
Extended Forecast for

Saint Michael-Sidman PA

  • Overnight

    Overnight: Rain. Low around 51. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Rain

  • Thursday

    Thursday: Rain, mainly before 11am. High near 58. East wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Rain then
    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49. East wind 5 to 7 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 59. Southeast wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Slight Chance
    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Rain. Low around 48. Southeast wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain Likely
    then Rain

  • Saturday

    Saturday: Rain, with thunderstorms also possible after 2pm. High near 53. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Saturday Night

    Saturday Night: Rain before 8pm, then showers likely, mainly between 8pm and 2am. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Rain

  • Sunday

    Sunday: A chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

Detailed Forecast

Overnight
Rain. Low around 51. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, mainly before 11am. High near 58. East wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 49. East wind 5 to 7 mph.
Friday
A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 59. Southeast wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain. Low around 48. Southeast wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain, with thunderstorms also possible after 2pm. High near 53. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Rain before 8pm, then showers likely, mainly between 8pm and 2am. Low around 49. Chance of precipitation is 80%.
Sunday
A chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Memorial Day
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 59.
Wednesday
Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Michael-Sidman PA
 40.33°N 78.75°W (Elev. 1696 ft)
Last Update:
2:21 am EDT May 21, 2026
Forecast Valid:
3am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation