Saint Marys, Pennsylvania | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    Mostly Sunny
    81°
    Forecast night icon
    Night
    Partly Cloudy
    60°
    Monday 5/20
    Day
    81°
    Mostly Sunny
    Forecast day icon
    Night
    60°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Areas of dense fog this morning. Isolated showers and thunderstorms this afternoon. Visibility one quarter mile or less at times this morning. Hot with highs in the lower 80s. Light and variable winds becoming south around 5 mph this afternoon. Chance of rain 20 percent.
    Night Details
    Partly cloudy. A slight chance of showers with isolated thunderstorms in the evening. Patchy fog after midnight. Lows in the upper 50s. South winds around 5 mph. Chance of rain 20 percent.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    82°
    Forecast night icon
    Night
    Mostly Clear
    62°
    Tuesday 5/21
    Day
    82°
    Mostly Sunny
    Forecast day icon
    Night
    62°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Patchy fog in the morning. Hot with highs in the mid 80s. Southwest winds 5 to 10 mph.
    Night Details
    Mostly clear. Lows in the lower 60s. South winds around 5 mph.
  • Forecast day icon
    Wednesday
    40% Chance of Storms
    82°
    Forecast night icon
    Night
    50% Chance of Storms
    63°
    Wednesday 5/22
    Day
    82°
    40% Chance of Storms
    Forecast day icon
    Night
    63°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers and thunderstorms 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 50 percent.
  • Forecast day icon
    Thursday
    50% Chance Rain Showers
    71°
    Forecast night icon
    Night
    50% Chance Rain Showers
    54°
    Thursday 5/23
    Day
    71°
    50% Chance Rain Showers
    Forecast day icon
    Night
    54°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers. Not as warm with highs in the mid 70s. Chance of rain 50 percent.
    Night Details
    Partly cloudy. A chance of showers in the evening. Cooler with lows around 50. Chance of rain 50 percent.
  • Forecast day icon
    Friday
    Mostly Sunny
    74°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Friday 5/24
    Day
    74°
    Mostly Sunny
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 70s.
    Night Details
    Partly cloudy. Lows in the upper 40s.
  • Forecast day icon
    Saturday
    40% Chance Rain Showers
    74°
    Forecast night icon
    Night
    40% Chance Rain Showers
    52°
    Saturday 5/25
    Day
    74°
    40% Chance Rain Showers
    Forecast day icon
    Night
    52°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a 40 percent chance of showers. Highs in the mid 70s.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A 40 percent chance of showers. Lows in the lower 50s.
  • Forecast day icon
    Sunday
    50% Chance Rain Showers
    73°
    Forecast night icon
    Night
    50% Chance of Rain
    57°
    Sunday 5/26
    Day
    73°
    50% Chance Rain Showers
    Forecast day icon
    Night
    57°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers. Highs in the mid 70s. Chance of rain 50 percent.
    Night Details
    Cloudy with a 50% chance for rain and thunderstorms. Low temperature around 57F. Dew point will be around 53F with an average humidity of 76%. Winds will be 6 mph from the SE.
  • Forecast day icon
    Monday
    60% Chance of Rain
    73°
    Forecast night icon
    Night
    60% Chance of Rain
    59°
    Monday 5/27
    Day
    73°
    60% Chance of Rain
    Forecast day icon
    Night
    59°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 55% chance for rain and thunderstorms. High temperature around 73F. Dew point will be around 58F with an average humidity of 76%. Winds will be 5 mph from the SE.
    Night Details
    Cloudy with a 60% chance for rain and thunderstorms. Low temperature around 59F. Dew point will be around 57F with an average humidity of 79%. Winds will be 3 mph from the SE.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    72°
    Forecast night icon
    Night
    60% Chance of Rain
    58°
    Tuesday 5/28
    Day
    72°
    70% Chance of Storms
    Forecast day icon
    Night
    58°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 65% chance for rain and thunderstorms. High temperature around 72F. Dew point will be around 58F with an average humidity of 75%. Winds will be 2 mph from the S.
    Night Details
    Partly cloudy with a 60% chance for rain and thunderstorms. Low temperature around 58F. Dew point will be around 55F with an average humidity of 77%. Winds will be 1 mph from the S.
  • Forecast day icon
    Wednesday
    60% Chance of Rain
    69°
    Forecast night icon
    Night
    40% Chance of Rain
    53°
    Wednesday 5/29
    Day
    69°
    60% Chance of Rain
    Forecast day icon
    Night
    53°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 55% chance for rain and thunderstorms. High temperature around 69F. Dew point will be around 54F with an average humidity of 71%. Winds will be 2 mph from the SW.
    Night Details
    Partly cloudy with a 35% chance for rain and thunderstorms. Low temperature around 53F. Dew point will be around 50F with an average humidity of 74%. Winds will be 1 mph from the SW.