Johnstown, Pennsylvania | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Clear
    59°
    Sunday 5/19
    Forecast night icon
    59°
    Clear
    Hourly
    Night Details
    Clear. Low temperature around 59F. Dew point will be around 57F with an average humidity of 82%. Winds will be 4 mph from the SE.
  • Forecast day icon
    Monday
    Mostly Sunny
    79°
    Forecast night icon
    Night
    Mostly Clear
    60°
    Monday 5/20
    Day
    79°
    Mostly Sunny
    Forecast day icon
    Night
    60°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Patchy fog this morning. Mostly sunny. Visibility one quarter mile or less at times this morning. Very warm with highs around 80. South winds around 5 mph.
    Night Details
    Mostly clear. Patchy fog after midnight. Lows in the upper 50s. South winds around 5 mph.
  • Forecast day icon
    Tuesday
    Sunny
    80°
    Forecast night icon
    Night
    Mostly Clear
    64°
    Tuesday 5/21
    Day
    80°
    Sunny
    Forecast day icon
    Night
    64°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Patchy fog in the morning. Very warm with highs in the lower 80s. Southwest winds around 5 mph.
    Night Details
    Mostly clear. Lows in the lower 60s. South winds around 5 mph.
  • Forecast day icon
    Wednesday
    40% Chance Rain Showers
    82°
    Forecast night icon
    Night
    40% Chance of Storms
    66°
    Wednesday 5/22
    Day
    82°
    40% Chance Rain Showers
    Forecast day icon
    Night
    66°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Sunny. A chance of showers in the afternoon. Hot with highs in the mid 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 40 percent.
  • Forecast day icon
    Thursday
    60% Chance Rain Showers
    70°
    Forecast night icon
    Night
    60% Chance Rain Showers
    58°
    Thursday 5/23
    Day
    70°
    60% Chance Rain Showers
    Forecast day icon
    Night
    58°
    60% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then becoming mostly cloudy. A chance of showers in the morning then showers likely in the afternoon. Not as warm with highs in the lower 70s. Chance of rain 60 percent.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Showers likely mainly in the evening. Lows in the mid 50s. Chance of rain 60 percent.
  • Forecast day icon
    Friday
    30% Chance Rain Showers
    70°
    Forecast night icon
    Night
    40% Chance Rain Showers
    52°
    Friday 5/24
    Day
    70°
    30% Chance Rain Showers
    Forecast day icon
    Night
    52°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30 percent.
    Night Details
    Partly cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 40 percent.
  • Forecast day icon
    Saturday
    50% Chance Rain Showers
    71°
    Forecast night icon
    Night
    50% Chance Rain Showers
    57°
    Saturday 5/25
    Day
    71°
    50% Chance Rain Showers
    Forecast day icon
    Night
    57°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a 50 percent chance of showers. Highs in the lower 70s.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A 50 percent chance of showers. Lows in the mid 50s.
  • Forecast day icon
    Sunday
    60% Chance of Storms
    71°
    Forecast night icon
    Night
    50% Chance of Rain
    59°
    Sunday 5/26
    Day
    71°
    60% Chance of Storms
    Forecast day icon
    Night
    59°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the morning then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 60 percent.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 45%. Low temperature around 59F. Dew point will be around 54F with an average humidity of 73%. Winds will be 5 mph from the SE.
  • Forecast day icon
    Monday
    50% Chance of Rain
    70°
    Forecast night icon
    Night
    60% Chance of Rain
    62°
    Monday 5/27
    Day
    70°
    50% Chance of Rain
    Forecast day icon
    Night
    62°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 50% chance for rain and thunderstorms. High temperature around 70F. Dew point will be around 58F with an average humidity of 75%. Winds will be 5 mph from the S.
    Night Details
    Partly cloudy with a 60% chance for rain and thunderstorms. Low temperature around 62F. Dew point will be around 58F with an average humidity of 78%. Winds will be 5 mph from the S.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    71°
    Forecast night icon
    Night
    60% Chance of Rain
    61°
    Tuesday 5/28
    Day
    71°
    70% Chance of Storms
    Forecast day icon
    Night
    61°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 65% chance for rain and thunderstorms. High temperature around 71F. Dew point will be around 60F with an average humidity of 77%. Winds will be 4 mph from the SW.
    Night Details
    Partly cloudy with a 55% chance for rain and thunderstorms. Low temperature around 61F. Dew point will be around 57F with an average humidity of 76%. Winds will be 4 mph from the S.