St. Mary Weather Forecast 15 Days, Weather in St. Mary Today
Current weather conditions and 15 day weather forecast for St. Mary, North Dakota, 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. Mary
| 11 May 2026 Monday 7.2 ° C / 45°F  Clear |
Feels Like : 3.6 ° C / 38.4°F Humidity : % 53 Pressure : 1017 mb Wind Speed : 22.7 kmph / 14.1 miles from SSE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for St. Mary, ND, USA
Weather Forecast for next 15 Days for St. Mary 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. Mary, North Dakota 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 May 2026 Monday | Sunny |
5.2 ° C (41.4°F) |
26.9 ° C (80.4°F) |
15.8 ° C (60.4°F) |
% 39 | 0% | 5.8 | Sunrise:06:13 AM Sunset: 09:12 PM |
Moonrise:03:46 AM Moonset: 03:03 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Sunny |
11.3 ° C (52.3°F) |
22.7 ° C (72.8°F) |
16.9 ° C (62.4°F) |
% 40 | 0% | 6.1 | Sunrise:06:12 AM Sunset: 09:13 PM |
Moonrise:04:02 AM Moonset: 04:18 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Sunny |
9.5 ° C (49.1°F) |
25.5 ° C (78°F) |
18 ° C (64.4°F) |
% 34 | 0% | 7.2 | Sunrise:06:10 AM Sunset: 09:15 PM |
Moonrise:04:18 AM Moonset: 05:38 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Sunny |
14.9 ° C (58.8°F) |
27.5 ° C (81.4°F) |
21 ° C (69.8°F) |
% 36 | 0% | 6.8 | Sunrise:06:09 AM Sunset: 09:16 PM |
Moonrise:04:36 AM Moonset: 07:01 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday |  Patchy rain nearby |
8.1 ° C (46.5°F) |
24.3 ° C (75.7°F) |
17 ° C (62.6°F) |
% 58 | 79% | 0.1 | Sunrise:06:08 AM Sunset: 09:17 PM |
Moonrise:04:58 AM Moonset: 08:28 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Patchy rain nearby |
12 ° C (53.5°F) |
14.1 ° C (57.3°F) |
12.8 ° C (55.1°F) |
% 78 | 81% | 3 | Sunrise:06:07 AM Sunset: 09:18 PM |
Moonrise:05:27 AM Moonset: 09:57 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Patchy rain nearby |
7.1 ° C (44.8°F) |
20.8 ° C (69.4°F) |
13.9 ° C (56.9°F) |
% 58 | 87% | 3 | Sunrise:06:05 AM Sunset: 09:20 PM |
Moonrise:06:06 AM Moonset: 11:20 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Patchy rain nearby |
11.7 ° C (53°F) |
18.7 ° C (65.7°F) |
14.1 ° C (57.3°F) |
% 60 | 84% | 3 | Sunrise:06:04 AM Sunset: 09:21 PM |
Moonrise:07:00 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Patchy rain nearby |
8.7 ° C (47.6°F) |
14.7 ° C (58.5°F) |
11.5 ° C (52.7°F) |
% 66 | 64% | 3 | Sunrise:06:03 AM Sunset: 09:22 PM |
Moonrise:08:10 AM Moonset: 12:29 AM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Patchy rain nearby |
9.5 ° C (49°F) |
21.9 ° C (71.5°F) |
14.7 ° C (58.5°F) |
% 64 | 88% | 3 | Sunrise:06:02 AM Sunset: 09:23 PM |
Moonrise:09:32 AM Moonset: 01:21 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday |  Partly Cloudy |
7.6 ° C (45.7°F) |
11 ° C (51.8°F) |
9.9 ° C (49.8°F) |
% 65 | 0% | 3 | Sunrise:06:01 AM Sunset: 09:25 PM |
Moonrise:10:55 AM Moonset: 01:57 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
5 ° C (41°F) |
16.4 ° C (61.4°F) |
11.6 ° C (52.9°F) |
% 61 | 89% | 3 | Sunrise:06:00 AM Sunset: 09:26 PM |
Moonrise:12:16 PM Moonset: 02:23 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Patchy rain nearby |
9 ° C (48.1°F) |
13.4 ° C (56.2°F) |
11.4 ° C (52.4°F) |
% 69 | 84% | 3 | Sunrise:05:59 AM Sunset: 09:27 PM |
Moonrise:01:34 PM Moonset: 02:44 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Patchy rain nearby |
8.3 ° C (46.9°F) |
15.5 ° C (60°F) |
11.8 ° C (53.3°F) |
% 76 | 87% | 3 | Sunrise:05:58 AM Sunset: 09:28 PM |
Moonrise:02:46 PM Moonset: 03:01 AM Moon Phase ( Waxing Gibbous ) |
|
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