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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

57°F

14°C

Humidity 93%
Wind Speed E 8 mph
Barometer 30.15 in (1020.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 19 Sep 3:54 am EDT
Extended Forecast for

Seward PA

  • Today

    Today: Partly sunny, with a high near 76. Southeast wind 3 to 6 mph.

    High: 76 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 62. Southeast wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers and thunderstorms, mainly before 1pm, then showers and possibly a thunderstorm after 2pm. High near 77. Southwest wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 77 °F

    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Cloudy, with a low around 53. Light and variable wind becoming north around 5 mph in the evening. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, mainly after 8am. Mostly cloudy, with a high near 68. East wind around 7 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after 2am. Cloudy, with a low around 50. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly before 2pm. Cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 8am. Cloudy, with a high near 59. Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 76. Southeast wind 3 to 6 mph.
Tonight
A chance of showers, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 62. Southeast wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and thunderstorms, mainly before 1pm, then showers and possibly a thunderstorm after 2pm. High near 77. Southwest wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A chance of showers and thunderstorms. Cloudy, with a low around 53. Light and variable wind becoming north around 5 mph in the evening. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of showers, mainly after 8am. Mostly cloudy, with a high near 68. East wind around 7 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely, mainly after 2am. Cloudy, with a low around 50. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers likely, mainly before 2pm. Cloudy, with a high near 62. Chance of precipitation is 60%.
Tuesday Night
Showers likely, mainly after 2am. Cloudy, with a low around 48. Chance of precipitation is 60%.
Wednesday
Showers likely, mainly before 8am. Cloudy, with a high near 59. Chance of precipitation is 60%.
Wednesday Night
Showers likely, mainly after 2am. Cloudy, with a low around 48. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Seward PA
 40.42°N 79.03°W (Elev. 1168 ft)
Last Update:
2:21 am EDT Sep 19, 2026
Forecast Valid:
4am EDT Sep 19, 2026-6pm EDT Sep 25, 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