St. Marie Weather Forecast 15 Days, Weather in St. Marie Today
Current weather conditions and 15 day weather forecast for St. Marie, Montana, 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. Marie
| 21 March 2026 Saturday 10.5 ° C / 50.8°F  Clear |
Feels Like : 7.4 ° C / 45.4°F Humidity : % 62 Pressure : 1009 mb Wind Speed : 31.3 kmph / 19.5 miles from W  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for St. Marie, MT, USA
Weather Forecast for next 15 Days for St. Marie 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. Marie, Montana 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 21 March 2026 Saturday |  Patchy rain nearby |
2.1 ° C (35.8°F) |
13.1 ° C (55.6°F) |
8.7 ° C (47.6°F) |
% 63 | 86% | 0.6 | Sunrise:07:07 AM Sunset: 07:21 PM |
Moonrise:07:52 AM Moonset: 11:25 PM Moon Phase ( Waxing Crescent ) |
|
| 22 March 2026 Sunday |  Overcast |
-0.5 ° C (31.1°F) |
9.8 ° C (49.6°F) |
3.5 ° C (38.2°F) |
% 67 | 0% | 0.7 | Sunrise:07:05 AM Sunset: 07:23 PM |
Moonrise:08:18 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 23 March 2026 Monday | Overcast |
0.6 ° C (33.1°F) |
10.6 ° C (51.1°F) |
5 ° C (41.1°F) |
% 50 | 0% | 0.9 | Sunrise:07:03 AM Sunset: 07:24 PM |
Moonrise:08:53 AM Moonset: 12:51 AM Moon Phase ( Waxing Crescent ) |
|
| 24 March 2026 Tuesday |  Cloudy |
-0.8 ° C (30.5°F) |
8.9 ° C (48°F) |
3.9 ° C (39.1°F) |
% 50 | 0% | 0.9 | Sunrise:07:00 AM Sunset: 07:25 PM |
Moonrise:09:40 AM Moonset: 02:12 AM Moon Phase ( Waxing Crescent ) |
|
| 25 March 2026 Wednesday | Sunny |
2.4 ° C (36.3°F) |
11.1 ° C (52°F) |
7.7 ° C (45.8°F) |
% 60 | 0% | 0 | Sunrise:06:58 AM Sunset: 07:27 PM |
Moonrise:10:43 AM Moonset: 03:20 AM Moon Phase ( First Quarter ) |
|
| 26 March 2026 Thursday |  Partly Cloudy |
-7.4 ° C (18.6°F) |
-0.3 ° C (31.5°F) |
-4 ° C (24.9°F) |
% 43 | 0% | 2 | Sunrise:06:56 AM Sunset: 07:28 PM |
Moonrise:11:58 AM Moonset: 04:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 March 2026 Friday | Sunny |
-3.1 ° C (26.5°F) |
11.2 ° C (52.2°F) |
3.1 ° C (37.6°F) |
% 33 | 0% | 2 | Sunrise:06:54 AM Sunset: 07:30 PM |
Moonrise:01:19 PM Moonset: 04:49 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 March 2026 Saturday | Partly Cloudy |
4.5 ° C (40.2°F) |
8.8 ° C (47.8°F) |
6.5 ° C (43.6°F) |
% 38 | 0% | 3 | Sunrise:06:52 AM Sunset: 07:31 PM |
Moonrise:02:40 PM Moonset: 05:16 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday |  Heavy snow |
-0.8 ° C (30.6°F) |
1.8 ° C (35.2°F) |
0.7 ° C (33.3°F) |
% 85 | 66% | 1 | Sunrise:06:50 AM Sunset: 07:33 PM |
Moonrise:03:58 PM Moonset: 05:37 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday | Overcast |
-1.8 ° C (28.8°F) |
5.9 ° C (42.6°F) |
1.8 ° C (35.2°F) |
% 71 | 0% | 1 | Sunrise:06:48 AM Sunset: 07:34 PM |
Moonrise:05:14 PM Moonset: 05:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday | Overcast |
-1 ° C (30.2°F) |
4.2 ° C (39.6°F) |
1.6 ° C (34.9°F) |
% 81 | 0% | 1 | Sunrise:06:46 AM Sunset: 07:36 PM |
Moonrise:06:27 PM Moonset: 06:08 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday | Patchy rain nearby |
0.7 ° C (33.3°F) |
5.9 ° C (42.5°F) |
3 ° C (37.4°F) |
% 79 | 65% | 1 | Sunrise:06:44 AM Sunset: 07:37 PM |
Moonrise:07:39 PM Moonset: 06:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday | Patchy rain nearby |
0.2 ° C (32.3°F) |
3.3 ° C (37.9°F) |
2.6 ° C (36.7°F) |
% 90 | 86% | 1 | Sunrise:06:42 AM Sunset: 07:39 PM |
Moonrise:08:50 PM Moonset: 06:36 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday |  Blowing snow |
-1.7 ° C (29°F) |
1 ° C (33.8°F) |
-0.6 ° C (30.9°F) |
% 79 | 89% | 1 | Sunrise:06:40 AM Sunset: 07:40 PM |
Moonrise:10:02 PM Moonset: 06:52 AM Moon Phase ( Waning Gibbous ) |
|
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