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City of St. Marys, PASt. Marys, PA 14 Day Weather - 15857 WeatherWorld.com
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St. Marys, PA Weather Forecast
St. Marys, PA Weather Forecast Dated: 1155 AM Mon Sep 28 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Monday, September 28, 2026
Mid-Morning
51°F 10°C
Fog
Mid-Afternoon
55°F 13°C
Scattered Showers
Early-Evening
56°F 13°C
Scattered Showers
Brisk around 55°F 13°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Tuesday, September 29, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
60°F 16°C
Cloudy
Early-Evening
63°F 18°C
Scattered Showers
Mildly cool near 60°F 16°C, scattered downpours possible, with lower humidity and steady pressure.
Wednesday, September 30, 2026
Mid-Morning
53°F 12°C
Overcast
Mid-Afternoon
67°F 20°C
Overcast
Early-Evening
66°F 19°C
Sunny
Comfortable at 67°F 20°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
72°F 22°C
Partly Cloudy
Early-Evening
69°F 21°C
Partly Cloudy
Mild temperatures up to 72°F 22°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds turning from the SSW to the SW at 7 mph 11 km/h. Gusts up to 25 mph 40 km/h.
Friday, October 2, 2026
Mid-Morning
59°F 15°C
Overcast
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
52°F 12°C
Overcast
Brisk around 55°F 13°C, overcast throughout the day, with lower humidity and barometric pressure rising. Winds switching from the W to the NW at 7 mph 11 km/h.
Saturday, October 3, 2026
Mid-Morning
44°F 7°C
Partly Cloudy
Mid-Afternoon
56°F 13°C
Sunny
Early-Evening
52°F 11°C
Sunny
Cool and brisk at 56°F 13°C, partly cloudy in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.
Sunday, October 4, 2026
Mid-Morning
42°F 6°C
Light Showers
Mid-Afternoon
43°F 6°C
Rain
Early-Evening
50°F 10°C
Light Rain
Nippy around 43°F 6°C, rounds of showers expected off and on all day, with increasing humidity and barometric pressure falling. Winds moving from the SE to the SSE at 12 mph 18 km/h. Gusts up to 33 mph 54 km/h.
Monday, October 5, 2026
Mid-Morning
52°F 11°C
Scattered Showers
Mid-Afternoon
50°F 10°C
Scattered Showers
Early-Evening
42°F 6°C
Scattered Showers
Crisp with a high near 50°F 10°C, scattered downpours possible, with lower humidity and barometric pressure rising. Winds swinging from the WSW to the W at 12 mph 20 km/h. Gusts up to 29 mph 47 km/h.
Tuesday, October 6, 2026
Mid-Morning
41°F 5°C
Scattered Showers
Mid-Afternoon
42°F 5°C
Light Showers
Early-Evening
43°F 6°C
Scattered Showers
Cold with a high near 42°F 5°C, locally heavy downpours at times, with steady humidity and barometric pressure rising. Winds blowing from the WSW at 6 mph 10 km/h.
Wednesday, October 7, 2026
Mid-Morning
47°F 8°C
Partly Cloudy
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
52°F 12°C
Sunny
Cool and brisk at 55°F 13°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Thursday, October 8, 2026
Mid-Morning
48°F 9°C
Overcast
Mid-Afternoon
52°F 11°C
Scattered Showers
Early-Evening
52°F 11°C
Light Fog
Chilly near 52°F 11°C, scattered downpours possible, with steady humidity and barometric pressure falling.
Friday, October 9, 2026
Mid-Morning
42°F 6°C
Light Showers
Mid-Afternoon
43°F 6°C
Light Showers
Early-Evening
44°F 7°C
Light Showers
Cold with a high near 43°F 6°C, on-and-off showers throughout the day, with steady humidity and steady pressure.
Saturday, October 10, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
51°F 11°C
Overcast
Early-Evening
51°F 10°C
Overcast
Brisk around 51°F 11°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds turning from the ESE to the ENE at 5 mph 8 km/h.
Sunday, October 11, 2026
Mid-Morning
44°F 6°C
Light Fog
Mid-Afternoon
45°F 7°C
Light Showers
Early-Evening
46°F 8°C
Light Showers
Cool and brisk at 45°F 7°C, clouds and showers taking over for the afternoon and evening, with steady humidity and barometric pressure falling. Winds switching from the NE to the NW at 2 mph 3 km/h.
St. Marys, PA Weather Radar Map
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