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
| 11 August 2026 Tuesday 24.2 ° C / 75.6°F  Patchy rain nearby |
Feels Like : 25.9 ° C / 78.6°F Humidity : % 89 Pressure : 1013 mb Wind Speed : 16.6 kmph / 10.3 miles from S  Visibility : 9 km Precipitation (rainfall) : 0.34 mm Cloud (%) : 88 |
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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 11 August 2026 Tuesday | Patchy rain nearby |
19 ° C (66.3°F) |
29.6 ° C (85.3°F) |
22.9 ° C (73.3°F) |
% 87 | 83% | 3.9 | Sunrise:06:44 AM Sunset: 08:41 PM |
Moonrise:04:44 AM Moonset: 08:05 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday |  Sunny |
17.9 ° C (64.2°F) |
28.5 ° C (83.3°F) |
22.5 ° C (72.4°F) |
% 87 | 72% | 5.8 | Sunrise:06:45 AM Sunset: 08:39 PM |
Moonrise:06:06 AM Moonset: 08:39 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday |  Mist |
18.4 ° C (65.1°F) |
27.7 ° C (81.8°F) |
22.3 ° C (72.1°F) |
% 88 | 82% | 6.7 | Sunrise:06:46 AM Sunset: 08:38 PM |
Moonrise:07:28 AM Moonset: 09:08 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Patchy rain nearby |
17.9 ° C (64.2°F) |
25.8 ° C (78.4°F) |
21.3 ° C (70.4°F) |
% 87 | 59% | 7.8 | Sunrise:06:47 AM Sunset: 08:37 PM |
Moonrise:08:46 AM Moonset: 09:34 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
14.2 ° C (57.5°F) |
26.1 ° C (78.9°F) |
20.2 ° C (68.4°F) |
% 79 | 9% | 7 | Sunrise:06:48 AM Sunset: 08:35 PM |
Moonrise:10:02 AM Moonset: 09:58 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
21.7 ° C (71.1°F) |
27.6 ° C (81.7°F) |
24.4 ° C (76°F) |
% 89 | 15% | 7 | Sunrise:06:49 AM Sunset: 08:34 PM |
Moonrise:11:15 AM Moonset: 10:23 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Patchy rain nearby |
16.5 ° C (61.8°F) |
23.2 ° C (73.7°F) |
19.2 ° C (66.5°F) |
% 88 | 81% | 5 | Sunrise:06:50 AM Sunset: 08:32 PM |
Moonrise:12:27 PM Moonset: 10:50 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
14.4 ° C (57.9°F) |
23.9 ° C (75°F) |
18.9 ° C (66.1°F) |
% 84 | 11% | 6 | Sunrise:06:51 AM Sunset: 08:31 PM |
Moonrise:01:38 PM Moonset: 11:20 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Sunny |
16 ° C (60.8°F) |
26.2 ° C (79.2°F) |
21.5 ° C (70.6°F) |
% 86 | 75% | 7 | Sunrise:06:52 AM Sunset: 08:30 PM |
Moonrise:02:47 PM Moonset: 11:56 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday |  Thundery outbreaks in nearby |
21.2 ° C (70.2°F) |
25.7 ° C (78.3°F) |
22.9 ° C (73.2°F) |
% 93 | 89% | 6 | Sunrise:06:53 AM Sunset: 08:28 PM |
Moonrise:03:52 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Patchy rain nearby |
14.8 ° C (58.7°F) |
24.3 ° C (75.7°F) |
21.8 ° C (71.2°F) |
% 88 | 48% | 6 | Sunrise:06:54 AM Sunset: 08:27 PM |
Moonrise:04:50 PM Moonset: 12:39 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Sunny |
11.9 ° C (53.4°F) |
21.1 ° C (70°F) |
16 ° C (60.7°F) |
% 82 | 13% | 6 | Sunrise:06:55 AM Sunset: 08:25 PM |
Moonrise:05:40 PM Moonset: 01:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Sunny |
11.8 ° C (53.3°F) |
22.3 ° C (72.1°F) |
16.6 ° C (61.9°F) |
% 79 | 9% | 6 | Sunrise:06:56 AM Sunset: 08:24 PM |
Moonrise:06:22 PM Moonset: 02:25 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Sunny |
13.1 ° C (55.6°F) |
24.7 ° C (76.5°F) |
18.4 ° C (65.1°F) |
% 79 | 9% | 6 | Sunrise:06:57 AM Sunset: 08:22 PM |
Moonrise:06:57 PM Moonset: 03:26 AM Moon Phase ( Waxing Gibbous ) |
|
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