Big Sky Weather Forecast 15 Days, Weather in Big Sky Today
Current weather conditions and 15 day weather forecast for Big Sky, 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 Big Sky
| 05 May 2026 Tuesday -1.2 ° C / 29.9°F  Moderate snow |
Feels Like : -3.6 ° C / 25.5°F Humidity : % 97 Pressure : 1014 mb Wind Speed : 6.1 kmph / 3.8 miles from NNE  Visibility : 5 km Precipitation (rainfall) : 0.23 mm Cloud (%) : 100 |
15 day weather forecast for Big Sky, MT, USA
Weather Forecast for next 15 Days for Big Sky 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 Big Sky, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 May 2026 Tuesday |  Moderate or heavy snow showers |
-3.7 ° C (25.3°F) |
2.2 ° C (35.9°F) |
-0.4 ° C (31.3°F) |
% 80 | 68% | 6.3 | Sunrise:06:08 AM Sunset: 08:37 PM |
Moonrise:12:15 AM Moonset: 08:09 AM Moon Phase ( Waning Gibbous ) |
|
| 06 May 2026 Wednesday |  Patchy rain nearby |
-4 ° C (24.8°F) |
10.3 ° C (50.5°F) |
3 ° C (37.3°F) |
% 61 | 81% | 7.4 | Sunrise:06:06 AM Sunset: 08:38 PM |
Moonrise:01:04 AM Moonset: 09:05 AM Moon Phase ( Waning Gibbous ) |
|
| 07 May 2026 Thursday | Patchy rain nearby |
4.3 ° C (39.8°F) |
13.2 ° C (55.7°F) |
8 ° C (46.3°F) |
% 65 | 88% | 7.9 | Sunrise:06:05 AM Sunset: 08:39 PM |
Moonrise:01:44 AM Moonset: 10:09 AM Moon Phase ( Waning Gibbous ) |
|
| 08 May 2026 Friday |  Sunny |
3.9 ° C (39°F) |
13.4 ° C (56.2°F) |
8.5 ° C (47.3°F) |
% 58 | 0% | 0 | Sunrise:06:04 AM Sunset: 08:40 PM |
Moonrise:02:16 AM Moonset: 11:16 AM Moon Phase ( Waning Gibbous ) |
|
| 09 May 2026 Saturday |  Moderate rain |
-0.4 ° C (31.3°F) |
6 ° C (42.7°F) |
2.2 ° C (35.9°F) |
% 82 | 89% | 1 | Sunrise:06:02 AM Sunset: 08:42 PM |
Moonrise:02:41 AM Moonset: 12:25 PM Moon Phase ( Last Quarter ) |
|
| 10 May 2026 Sunday | Sunny |
-1.3 ° C (29.7°F) |
11.1 ° C (52°F) |
4.9 ° C (40.7°F) |
% 72 | 0% | 2 | Sunrise:06:01 AM Sunset: 08:43 PM |
Moonrise:03:03 AM Moonset: 01:35 PM Moon Phase ( Waning Crescent ) |
|
| 11 May 2026 Monday | Sunny |
1.9 ° C (35.4°F) |
13.1 ° C (55.6°F) |
7.8 ° C (46°F) |
% 51 | 0% | 3 | Sunrise:06:00 AM Sunset: 08:44 PM |
Moonrise:03:23 AM Moonset: 02:46 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Sunny |
4.6 ° C (40.2°F) |
15.1 ° C (59.1°F) |
9.5 ° C (49.1°F) |
% 50 | 0% | 3 | Sunrise:05:59 AM Sunset: 08:45 PM |
Moonrise:03:41 AM Moonset: 04:00 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Moderate rain |
-2 ° C (28.4°F) |
8.9 ° C (48°F) |
3.8 ° C (38.8°F) |
% 85 | 87% | 1 | Sunrise:05:57 AM Sunset: 08:46 PM |
Moonrise:04:00 AM Moonset: 05:16 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Moderate or heavy snow showers |
-6.1 ° C (21.1°F) |
1.7 ° C (35.1°F) |
-2.4 ° C (27.6°F) |
% 79 | 75% | 1 | Sunrise:05:56 AM Sunset: 08:48 PM |
Moonrise:04:20 AM Moonset: 06:37 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday |  Light freezing rain |
-5 ° C (23°F) |
3 ° C (37.4°F) |
-0.9 ° C (30.3°F) |
% 76 | 88% | 1 | Sunrise:05:55 AM Sunset: 08:49 PM |
Moonrise:04:45 AM Moonset: 08:02 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Patchy rain nearby |
-3.2 ° C (26.2°F) |
6.6 ° C (43.9°F) |
1.6 ° C (34.8°F) |
% 81 | 76% | 1 | Sunrise:05:54 AM Sunset: 08:50 PM |
Moonrise:05:17 AM Moonset: 09:28 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday |  Thundery outbreaks in nearby |
0.4 ° C (32.8°F) |
8.3 ° C (46.9°F) |
4.5 ° C (40.1°F) |
% 76 | 0% | 1 | Sunrise:05:53 AM Sunset: 08:51 PM |
Moonrise:05:59 AM Moonset: 10:49 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Moderate rain |
1.5 ° C (34.6°F) |
7.5 ° C (45.5°F) |
3.5 ° C (38.4°F) |
% 93 | 87% | 1 | Sunrise:05:52 AM Sunset: 08:52 PM |
Moonrise:06:55 AM Moonset: 11:57 PM Moon Phase ( Waxing Crescent ) |
|
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