St. Regis Weather Forecast 15 Days, Weather in St. Regis Today
Current weather conditions and 15 day weather forecast for St. Regis, 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. Regis
| 03 August 2026 Monday 26.1 ° C / 79°F  Sunny |
Feels Like : 23 ° C / 73.4°F Humidity : % 17 Pressure : 1016 mb Wind Speed : 5 kmph / 3.1 miles from NNW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for St. Regis, MT, USA
Weather Forecast for next 15 Days for St. Regis 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. Regis, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 03 August 2026 Monday | Sunny |
10.6 ° C (51.1°F) |
26.7 ° C (80.1°F) |
18.7 ° C (65.6°F) |
% 30 | 0% | 4 | Sunrise:06:21 AM Sunset: 09:11 PM |
Moonrise:11:01 PM Moonset: 11:59 AM Moon Phase ( Last Quarter ) |
|
| 04 August 2026 Tuesday | Sunny |
4.1 ° C (39.4°F) |
28.5 ° C (83.3°F) |
18.3 ° C (64.9°F) |
% 30 | 1% | 5.3 | Sunrise:06:22 AM Sunset: 09:10 PM |
Moonrise:11:19 PM Moonset: 01:09 PM Moon Phase ( Last Quarter ) |
|
| 05 August 2026 Wednesday | Sunny |
7.1 ° C (44.7°F) |
31.7 ° C (89.1°F) |
19.3 ° C (66.8°F) |
% 27 | 0% | 6.2 | Sunrise:06:24 AM Sunset: 09:08 PM |
Moonrise:11:41 PM Moonset: 02:23 PM Moon Phase ( Last Quarter ) |
|
| 06 August 2026 Thursday | Sunny |
9.4 ° C (48.9°F) |
35.6 ° C (96.1°F) |
22 ° C (71.7°F) |
% 24 | 0% | 2.5 | Sunrise:06:25 AM Sunset: 09:07 PM |
Moonrise:Does not rise today Moonset: 03:40 PM Moon Phase ( Last Quarter ) |
|
| 07 August 2026 Friday | Sunny |
12.1 ° C (53.8°F) |
31.8 ° C (89.2°F) |
21.6 ° C (70.9°F) |
% 22 | 0% | 8 | Sunrise:06:26 AM Sunset: 09:05 PM |
Moonrise:12:11 AM Moonset: 04:57 PM Moon Phase ( Waning Crescent ) |
|
| 08 August 2026 Saturday | Sunny |
9.6 ° C (49.2°F) |
30.8 ° C (87.4°F) |
20 ° C (68.1°F) |
% 29 | 1% | 8 | Sunrise:06:28 AM Sunset: 09:04 PM |
Moonrise:12:52 AM Moonset: 06:10 PM Moon Phase ( Waning Crescent ) |
|
| 09 August 2026 Sunday | Sunny |
8.1 ° C (46.6°F) |
32.4 ° C (90.4°F) |
20.1 ° C (68.2°F) |
% 33 | 1% | 8 | Sunrise:06:29 AM Sunset: 09:02 PM |
Moonrise:01:49 AM Moonset: 07:11 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday | Sunny |
8.9 ° C (48°F) |
34.6 ° C (94.3°F) |
21.2 ° C (70.2°F) |
% 31 | 1% | 8 | Sunrise:06:30 AM Sunset: 09:00 PM |
Moonrise:03:02 AM Moonset: 07:58 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Sunny |
11 ° C (51.7°F) |
34 ° C (93.2°F) |
22 ° C (71.6°F) |
% 28 | 0% | 8 | Sunrise:06:31 AM Sunset: 08:59 PM |
Moonrise:04:27 AM Moonset: 08:33 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
10.9 ° C (51.7°F) |
32.3 ° C (90.2°F) |
21.8 ° C (71.2°F) |
% 34 | 1% | 8 | Sunrise:06:33 AM Sunset: 08:57 PM |
Moonrise:05:57 AM Moonset: 08:59 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Sunny |
10.3 ° C (50.6°F) |
32 ° C (89.7°F) |
20.6 ° C (69.1°F) |
% 46 | 4% | 8 | Sunrise:06:34 AM Sunset: 08:56 PM |
Moonrise:07:26 AM Moonset: 09:21 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Sunny |
9.4 ° C (48.9°F) |
27.2 ° C (80.9°F) |
17.2 ° C (63°F) |
% 39 | 1% | 7 | Sunrise:06:35 AM Sunset: 08:54 PM |
Moonrise:08:51 AM Moonset: 09:39 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
5.5 ° C (41.9°F) |
29.6 ° C (85.2°F) |
17.4 ° C (63.4°F) |
% 30 | 1% | 7 | Sunrise:06:37 AM Sunset: 08:52 PM |
Moonrise:10:13 AM Moonset: 09:57 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
8.6 ° C (47.4°F) |
35.9 ° C (96.6°F) |
21.6 ° C (71°F) |
% 23 | 1% | 9 | Sunrise:06:38 AM Sunset: 08:50 PM |
Moonrise:11:34 AM Moonset: 10:16 PM Moon Phase ( Waxing Crescent ) |
|
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