Current weather conditions and 15 day weather forecast for South Boulder Airport, 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.
| 21 March 2026 Saturday 6.7 ° C / 44.1°F ![]() Clear |
Feels Like : 4.5 ° C / 40.2°F Humidity : % 49 Pressure : 1013 mb Wind Speed : 10.8 kmph / 6.7 miles from SW ![]() Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 21 March 2026 Saturday | Sunny |
1.7 ° C (35.1°F) |
19.4 ° C (66.9°F) |
12 ° C (53.5°F) |
% 43 | 0% | 1.1 | Sunrise:07:29 AM Sunset: 07:42 PM |
Moonrise:08:21 AM Moonset: 11:39 PM Moon Phase ( Waxing Crescent ) |
|
| 22 March 2026 Sunday | Sunny |
-3.1 ° C (26.4°F) |
14 ° C (57.2°F) |
4.6 ° C (40.3°F) |
% 55 | 0% | 1.1 | Sunrise:07:27 AM Sunset: 07:44 PM |
Moonrise:08:50 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 23 March 2026 Monday | Overcast |
-0.2 ° C (31.6°F) |
16.4 ° C (61.5°F) |
7.3 ° C (45.2°F) |
% 33 | 0% | 1.1 | Sunrise:07:25 AM Sunset: 07:45 PM |
Moonrise:09:28 AM Moonset: 01:02 AM Moon Phase ( Waxing Crescent ) |
|
| 24 March 2026 Tuesday | Partly Cloudy |
2.7 ° C (36.8°F) |
18.2 ° C (64.7°F) |
10.1 ° C (50.1°F) |
% 42 | 0% | 1.1 | Sunrise:07:23 AM Sunset: 07:46 PM |
Moonrise:10:17 AM Moonset: 02:20 AM Moon Phase ( Waxing Crescent ) |
|
| 25 March 2026 Wednesday | Partly Cloudy |
1.2 ° C (34.1°F) |
13.7 ° C (56.7°F) |
9.6 ° C (49.2°F) |
% 50 | 0% | 0 | Sunrise:07:21 AM Sunset: 07:48 PM |
Moonrise:11:21 AM Moonset: 03:28 AM Moon Phase ( First Quarter ) |
|
| 26 March 2026 Thursday | Sunny |
-3.5 ° C (25.6°F) |
7.8 ° C (46°F) |
1.6 ° C (34.8°F) |
% 36 | 0% | 2 | Sunrise:07:19 AM Sunset: 07:49 PM |
Moonrise:12:34 PM Moonset: 04:20 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 March 2026 Friday | Partly Cloudy |
-2.2 ° C (28°F) |
15.8 ° C (60.4°F) |
6 ° C (42.8°F) |
% 29 | 0% | 3 | Sunrise:07:17 AM Sunset: 07:50 PM |
Moonrise:01:52 PM Moonset: 05:00 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 March 2026 Saturday | Sunny |
3.8 ° C (38.9°F) |
11 ° C (51.9°F) |
6.9 ° C (44.4°F) |
% 39 | 0% | 3 | Sunrise:07:15 AM Sunset: 07:52 PM |
Moonrise:03:11 PM Moonset: 05:30 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday | Patchy rain nearby |
-0.7 ° C (30.7°F) |
4.4 ° C (40°F) |
1.9 ° C (35.4°F) |
% 63 | 86% | 1 | Sunrise:07:13 AM Sunset: 07:53 PM |
Moonrise:04:26 PM Moonset: 05:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday | Patchy rain nearby |
-1.1 ° C (30°F) |
4.9 ° C (40.8°F) |
1.4 ° C (34.5°F) |
% 62 | 82% | 1 | Sunrise:07:12 AM Sunset: 07:54 PM |
Moonrise:05:39 PM Moonset: 06:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday | Partly Cloudy |
-4.2 ° C (24.5°F) |
10.5 ° C (50.9°F) |
3.2 ° C (37.8°F) |
% 54 | 0% | 2 | Sunrise:07:10 AM Sunset: 07:55 PM |
Moonrise:06:49 PM Moonset: 06:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday | Patchy rain nearby |
0.1 ° C (32.2°F) |
11.4 ° C (52.6°F) |
5.4 ° C (41.7°F) |
% 63 | 70% | 2 | Sunrise:07:08 AM Sunset: 07:57 PM |
Moonrise:07:58 PM Moonset: 06:46 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday | Patchy rain nearby |
1.2 ° C (34.2°F) |
6.2 ° C (43.2°F) |
3.1 ° C (37.7°F) |
% 75 | 89% | 1 | Sunrise:07:06 AM Sunset: 07:58 PM |
Moonrise:09:08 PM Moonset: 07:03 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday | Light freezing rain |
-4.5 ° C (23.9°F) |
5.7 ° C (42.3°F) |
0.8 ° C (33.4°F) |
% 71 | 71% | 1 | Sunrise:07:04 AM Sunset: 07:59 PM |
Moonrise:10:16 PM Moonset: 07:21 AM Moon Phase ( Waning Gibbous ) |
|