15901 Weather (Johnstown, PA)

Weather forecast for: Johnstown PA

Last Update: 8:05 am EDT Sep 13, 2026

Today: A chance of showers before 10am. Partly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

Tonight: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday: Partly sunny, then gradually becoming sunny, with a high near 70. Northwest wind 5 to 7 mph.

Monday Night: Mostly clear, with a low around 48. Calm wind.

Tuesday: Sunny, with a high near 78. South wind 5 to 7 mph.

Tuesday Night: Mostly clear, with a low around 58.

Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 40%.

Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.

Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. 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 64. Chance of precipitation is 60%.

Friday: A chance of showers. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.

Friday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.

Saturday: A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 50%.