Saint Marys, PA Weather Forecast
Local 7-day forecast
Smoke then Areas Of Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Marys, PA in one place.
Smoke and a slight chance of showers and thunderstorms before 7am, then smoke and a chance of showers and thunderstorms between 7am and 8am, then areas of smoke and showers and thunderstorms. Cloudy, with a high near 79. Southwest wind 5 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Saint Marys, PA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 10:36 AM EDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Saint Marys, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 10:36 AM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Marys
Monday looks like the warmest upcoming period in Saint Marys at 80 degrees F.
Sunday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Saturday at about 5 to 12 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 10:36 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KCCX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 2am. Mostly cloudy, with a low around 59. West wind 5 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Mostly sunny, with a high near 77. Northwest wind around 7 mph.
Mostly clear, with a low around 52.
Mostly sunny, with a high near 80.
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 62.
A slight chance of rain showers before 8am, then showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 80%.
A slight chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 74.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 52.
Mostly sunny, with a high near 75.
Mostly clear, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Smoke then Areas Of Smoke
|
79°F |
5 to 12 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms
|
59°F |
5 to 12 mph
W
|
|
Sunday
Jul 19
|
Mostly Sunny
|
77°F |
7 mph
NW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
52°F |
0 to 6 mph
N
|
|
Monday
Jul 20
|
Mostly Sunny
|
80°F |
0 to 5 mph
S
|
|
Monday Night
Jul 20
|
Mostly Cloudy then Slight Chance Rain Showers
|
62°F |
2 to 6 mph
S
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms
|
80°F |
6 to 12 mph
SW
|
|
Tuesday Night
Jul 21
|
Showers And Thunderstorms
|
59°F |
6 to 9 mph
W
|
|
Wednesday
Jul 22
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
74°F |
8 to 12 mph
NW
|
|
Wednesday Night
Jul 22
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
52°F |
2 to 10 mph
NW
|
|
Thursday
Jul 23
|
Mostly Sunny
|
75°F |
2 to 6 mph
NW
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
52°F |
0 to 3 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Marys.
