St. Marys Weather Forecast 15 Days, Weather in St. Marys Today

Current weather conditions and 15 day weather forecast for St. Marys, Ohio, 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

25 September 2026 Friday
15.5 ° C / 59.9°F
Partly Cloudy
Partly Cloudy
Feels Like : 12.2 ° C / 54°F
Humidity : % 56
Pressure : 1026 mb
Wind Speed : 13 kmph / 8.1 miles from NENE
Visibility : 10 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 62

15 day weather forecast for St. Marys, OH, 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, Ohio 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
25 September 2026 Friday Overcast Overcast 8.7 ° C
(47.6°F)
18.5 ° C
(65.3°F)
13.3 ° C
(56°F)
% 67 11% 4.7 Sunrise:07:28 AM
Sunset: 07:30 PM
Moonrise:06:57 PM
Moonset: 06:26 AM
Moon Phase
( Full Moon )
26 September 2026 Saturday Sunny Sunny 9 ° C
(48.1°F)
19.3 ° C
(66.8°F)
13.7 ° C
(56.7°F)
% 73 8% 5.6 Sunrise:07:29 AM
Sunset: 07:28 PM
Moonrise:07:17 PM
Moonset: 07:28 AM
Moon Phase
( Full Moon )
27 September 2026 Sunday Sunny Sunny 9.6 ° C
(49.4°F)
20.2 ° C
(68.3°F)
14.3 ° C
(57.8°F)
% 64 5% 5.7 Sunrise:07:30 AM
Sunset: 07:26 PM
Moonrise:07:39 PM
Moonset: 08:32 AM
Moon Phase
( Waning Gibbous )
28 September 2026 Monday Sunny Sunny 10.7 ° C
(51.3°F)
20.5 ° C
(68.8°F)
15.3 ° C
(59.5°F)
% 71 6% 5.6 Sunrise:07:31 AM
Sunset: 07:25 PM
Moonrise:08:05 PM
Moonset: 09:37 AM
Moon Phase
( Waning Gibbous )
29 September 2026 Tuesday Sunny Sunny 13 ° C
(55.4°F)
21.5 ° C
(70.7°F)
17.1 ° C
(62.8°F)
% 75 11% 6 Sunrise:07:32 AM
Sunset: 07:23 PM
Moonrise:08:35 PM
Moonset: 10:46 AM
Moon Phase
( Waning Gibbous )
30 September 2026 Wednesday Overcast Overcast 18.1 ° C
(64.6°F)
22.9 ° C
(73.3°F)
20 ° C
(68°F)
% 70 18% 5 Sunrise:07:33 AM
Sunset: 07:21 PM
Moonrise:09:12 PM
Moonset: 11:56 AM
Moon Phase
( Waning Gibbous )
01 October 2026 Thursday Overcast Overcast 19 ° C
(66.1°F)
22.3 ° C
(72.2°F)
20.2 ° C
(68.4°F)
% 68 73% 5 Sunrise:07:34 AM
Sunset: 07:20 PM
Moonrise:09:59 PM
Moonset: 01:05 PM
Moon Phase
( Last Quarter )
02 October 2026 Friday Light rain shower Light rain shower 18.9 ° C
(66.1°F)
23.2 ° C
(73.8°F)
20.7 ° C
(69.3°F)
% 90 87% 5 Sunrise:07:35 AM
Sunset: 07:18 PM
Moonrise:10:57 PM
Moonset: 02:10 PM
Moon Phase
( Last Quarter )
03 October 2026 Saturday Patchy rain nearby Patchy rain nearby 19.6 ° C
(67.3°F)
25.2 ° C
(77.4°F)
22 ° C
(71.5°F)
% 87 72% 6 Sunrise:07:36 AM
Sunset: 07:17 PM
Moonrise:Does not rise today
Moonset: 03:07 PM
Moon Phase
( Last Quarter )
04 October 2026 Sunday Patchy rain nearby Patchy rain nearby 21.3 ° C
(70.3°F)
25.5 ° C
(77.9°F)
23.4 ° C
(74.2°F)
% 87 85% 7 Sunrise:07:37 AM
Sunset: 07:15 PM
Moonrise:12:05 AM
Moonset: 03:54 PM
Moon Phase
( Last Quarter )
05 October 2026 Monday Light rain shower Light rain shower 8.8 ° C
(47.9°F)
22 ° C
(71.6°F)
15.9 ° C
(60.6°F)
% 86 78% 6 Sunrise:07:38 AM
Sunset: 07:13 PM
Moonrise:01:20 AM
Moonset: 04:33 PM
Moon Phase
( Waning Crescent )
06 October 2026 Tuesday Sunny Sunny 4.5 ° C
(40.1°F)
9.5 ° C
(49°F)
7.2 ° C
(45°F)
% 68 10% 3 Sunrise:07:39 AM
Sunset: 07:12 PM
Moonrise:02:37 AM
Moonset: 05:05 PM
Moon Phase
( Waning Crescent )
07 October 2026 Wednesday Overcast Overcast 4 ° C
(39.3°F)
11.8 ° C
(53.2°F)
7.9 ° C
(46.2°F)
% 65 13% 3 Sunrise:07:40 AM
Sunset: 07:10 PM
Moonrise:03:54 AM
Moonset: 05:32 PM
Moon Phase
( Waning Crescent )
08 October 2026 Thursday Overcast Overcast 3.7 ° C
(38.7°F)
11.5 ° C
(52.8°F)
8.3 ° C
(46.9°F)
% 71 62% 3 Sunrise:07:41 AM
Sunset: 07:08 PM
Moonrise:05:10 AM
Moonset: 05:57 PM
Moon Phase
( Waning Crescent )
St. Marys Weather forecasts are usually fully updated every 4 hours.
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