St. Marys Weather Forecast 15 Days, Weather in St. Marys Today
Current weather conditions and 15 day weather forecast for St. Marys, Pennsylvania, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at St. Marys
| 28 December 2025 Sunday -1.7 ° C / 28.9°F  Overcast |
Feels Like : -3 ° C / 26.7°F Humidity : % 85 Pressure : 1019 mb Wind Speed : 4 kmph / 2.5 miles from NE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for St. Marys, PA, USA
Weather Forecast for next 15 Days for St. Marys including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in St. Marys, Pennsylvania state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 27 December 2025 Saturday | Overcast |
-6.8 ° C (19.8°F) |
-1.8 ° C (28.8°F) |
-2.4 ° C (27.7°F) |
% 93 | 0% | 0.3 | Sunrise:07:40 AM Sunset: 04:51 PM |
Moonrise:11:51 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Moderate or heavy snow showers |
-2.5 ° C (27.5°F) |
0.3 ° C (32.5°F) |
-1.1 ° C (30.1°F) |
% 92 | 89% | 0.2 | Sunrise:07:40 AM Sunset: 04:52 PM |
Moonrise:12:13 PM Moonset: 12:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Heavy rain |
-5.2 ° C (22.7°F) |
10.3 ° C (50.5°F) |
3.9 ° C (39°F) |
% 95 | 86% | 0.1 | Sunrise:07:40 AM Sunset: 04:53 PM |
Moonrise:12:40 PM Moonset: 02:07 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Blizzard |
-7.4 ° C (18.7°F) |
-5.6 ° C (22°F) |
-6.6 ° C (20.2°F) |
% 84 | 88% | 0.2 | Sunrise:07:40 AM Sunset: 04:54 PM |
Moonrise:01:13 PM Moonset: 03:25 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Light snow |
-7.8 ° C (17.9°F) |
-3.8 ° C (25.1°F) |
-6.6 ° C (20.1°F) |
% 86 | 84% | 0 | Sunrise:07:41 AM Sunset: 04:55 PM |
Moonrise:01:54 PM Moonset: 04:45 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Light snow |
-12.1 ° C (10.3°F) |
-8.4 ° C (16.9°F) |
-10.3 ° C (13.4°F) |
% 81 | 67% | 1 | Sunrise:07:41 AM Sunset: 04:55 PM |
Moonrise:02:48 PM Moonset: 06:04 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Light snow |
-12.6 ° C (9.3°F) |
-8.6 ° C (16.6°F) |
-10.8 ° C (12.6°F) |
% 85 | 60% | 1 | Sunrise:07:41 AM Sunset: 04:56 PM |
Moonrise:03:55 PM Moonset: 07:15 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday |  Light freezing rain |
-12.7 ° C (9.2°F) |
-5.3 ° C (22.4°F) |
-9.6 ° C (14.7°F) |
% 89 | 0% | 1 | Sunrise:07:41 AM Sunset: 04:57 PM |
Moonrise:05:12 PM Moonset: 08:13 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday |  Cloudy |
-10.6 ° C (13°F) |
1.3 ° C (34.4°F) |
-4.1 ° C (24.5°F) |
% 83 | 0% | 1 | Sunrise:07:41 AM Sunset: 04:58 PM |
Moonrise:06:31 PM Moonset: 08:58 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Light snow |
-10 ° C (14°F) |
-3.9 ° C (25.1°F) |
-5 ° C (23.1°F) |
% 82 | 82% | 1 | Sunrise:07:41 AM Sunset: 04:59 PM |
Moonrise:07:48 PM Moonset: 09:33 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday |  Sunny |
-15.2 ° C (4.6°F) |
-8.3 ° C (17.1°F) |
-12.2 ° C (10.1°F) |
% 78 | 0% | 2 | Sunrise:07:41 AM Sunset: 05:00 PM |
Moonrise:09:01 PM Moonset: 10:01 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday | Sunny |
-14.2 ° C (6.4°F) |
-2.5 ° C (27.5°F) |
-9.2 ° C (15.4°F) |
% 72 | 0% | 2 | Sunrise:07:41 AM Sunset: 05:01 PM |
Moonrise:10:09 PM Moonset: 10:23 AM Moon Phase ( Waning Gibbous ) |
|
| 08 January 2026 Thursday |  Partly Cloudy |
-10.4 ° C (13.4°F) |
-0 ° C (32°F) |
-5.6 ° C (22°F) |
% 66 | 0% | 2 | Sunrise:07:40 AM Sunset: 05:02 PM |
Moonrise:11:14 PM Moonset: 10:44 AM Moon Phase ( Waning Gibbous ) |
|
| 09 January 2026 Friday | Overcast |
-3.4 ° C (25.9°F) |
0.8 ° C (33.4°F) |
-1 ° C (30.3°F) |
% 85 | 0% | 1 | Sunrise:07:40 AM Sunset: 05:03 PM |
Moonrise:No moonrise Moonset: 11:04 AM Moon Phase ( Waning Gibbous ) |
|
Add a link to your web page; copy and paste this html to your web page