Halfmoon Flats Airport Weather Forecast 15 Days, Weather in Today

Current weather conditions and 15 day weather forecast for Halfmoon Flats 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.

Current weather conditions at Halfmoon Flats Airport

15 December 2025 Monday
2.3 ° C / 36.1°F
Partly cloudy
Partly cloudy
Feels Like : 1.7 ° C / 35.1°F
Humidity : % 93
Pressure : 1017 mb
Wind Speed : 3.6 kmph / 2.2 miles from SS
Visibility : 16 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 75

15 day weather forecast for Halfmoon Flats Airport, MT, USA

Weather Forecast for next 15 Days for Halfmoon Flats Airport 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 Halfmoon Flats Airport, 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
15 December 2025 Monday Moderate rain Moderate rain 3.1 ° C
(37.6°F)
10.1 ° C
(50.2°F)
5.3 ° C
(41.6°F)
% 74 85% 0 Sunrise:08:21 AM
Sunset: 04:41 PM
Moonrise:04:17 AM
Moonset: 01:48 PM
Moon Phase
( Waning Crescent )
16 December 2025 Tuesday Overcast  Overcast 0.8 ° C
(33.4°F)
3.3 ° C
(37.9°F)
2.5 ° C
(36.6°F)
% 95 0% 0.1 Sunrise:08:22 AM
Sunset: 04:42 PM
Moonrise:05:27 AM
Moonset: 02:08 PM
Moon Phase
( Waning Crescent )
17 December 2025 Wednesday Moderate or heavy sleet Moderate or heavy sleet -5.1 ° C
(22.9°F)
3.4 ° C
(38.1°F)
0.6 ° C
(33.1°F)
% 86 89% 0.1 Sunrise:08:23 AM
Sunset: 04:42 PM
Moonrise:06:36 AM
Moonset: 02:35 PM
Moon Phase
( Waning Crescent )
18 December 2025 Thursday Patchy moderate snow Patchy moderate snow -7.4 ° C
(18.8°F)
0.9 ° C
(33.5°F)
-2.3 ° C
(27.9°F)
% 92 65% 0.1 Sunrise:08:23 AM
Sunset: 04:42 PM
Moonrise:07:42 AM
Moonset: 03:11 PM
Moon Phase
( Waning Crescent )
19 December 2025 Friday Light snow showers Light snow showers -10.4 ° C
(13.2°F)
1.2 ° C
(34.2°F)
-0.7 ° C
(30.8°F)
% 86 77% 0 Sunrise:08:24 AM
Sunset: 04:43 PM
Moonrise:08:42 AM
Moonset: 03:57 PM
Moon Phase
( New Moon )
20 December 2025 Saturday Light freezing rain Light freezing rain -9.2 ° C
(15.4°F)
-1.2 ° C
(29.8°F)
-5.5 ° C
(22.1°F)
% 89 85% 1 Sunrise:08:25 AM
Sunset: 04:43 PM
Moonrise:09:33 AM
Moonset: 04:55 PM
Moon Phase
( New Moon )
21 December 2025 Sunday Heavy snow Heavy snow -8.6 ° C
(16.5°F)
-2.6 ° C
(27.3°F)
-4.4 ° C
(24.1°F)
% 94 79% 1 Sunrise:08:25 AM
Sunset: 04:44 PM
Moonrise:10:12 AM
Moonset: 06:02 PM
Moon Phase
( Waxing Crescent )
22 December 2025 Monday Moderate or heavy snow showers Moderate or heavy snow showers -2.7 ° C
(27.1°F)
2.4 ° C
(36.3°F)
0.4 ° C
(32.7°F)
% 91 83% 1 Sunrise:08:26 AM
Sunset: 04:44 PM
Moonrise:10:42 AM
Moonset: 07:15 PM
Moon Phase
( Waxing Crescent )
23 December 2025 Tuesday Patchy moderate snow Patchy moderate snow -14.9 ° C
(5.2°F)
-1.1 ° C
(30.1°F)
-6.3 ° C
(20.7°F)
% 89 63% 1 Sunrise:08:26 AM
Sunset: 04:45 PM
Moonrise:11:06 AM
Moonset: 08:28 PM
Moon Phase
( Waxing Crescent )
24 December 2025 Wednesday Moderate snow Moderate snow -15.4 ° C
(4.2°F)
-2.8 ° C
(27°F)
-9.1 ° C
(15.7°F)
% 94 69% 1 Sunrise:08:26 AM
Sunset: 04:45 PM
Moonrise:11:25 AM
Moonset: 09:43 PM
Moon Phase
( Waxing Crescent )
25 December 2025 Thursday Heavy snow Heavy snow -10.1 ° C
(13.8°F)
1.3 ° C
(34.3°F)
-2.9 ° C
(26.8°F)
% 98 78% 1 Sunrise:08:27 AM
Sunset: 04:46 PM
Moonrise:11:41 AM
Moonset: 10:57 PM
Moon Phase
( Waxing Crescent )
26 December 2025 Friday Light snow Light snow -13.2 ° C
(8.2°F)
-1.1 ° C
(30.1°F)
-6.9 ° C
(19.6°F)
% 97 89% 1 Sunrise:08:27 AM
Sunset: 04:47 PM
Moonrise:11:55 AM
Moonset: No moonset
Moon Phase
( Waxing Crescent )
27 December 2025 Saturday Moderate snow Moderate snow -3.2 ° C
(26.3°F)
0.3 ° C
(32.5°F)
-1.4 ° C
(29.4°F)
% 98 72% 1 Sunrise:08:27 AM
Sunset: 04:48 PM
Moonrise:12:10 PM
Moonset: 12:12 AM
Moon Phase
( First Quarter )
28 December 2025 Sunday Light snow Light snow -7.8 ° C
(17.9°F)
1.2 ° C
(34.2°F)
-1.6 ° C
(29°F)
% 94 86% 1 Sunrise:08:27 AM
Sunset: 04:48 PM
Moonrise:12:27 PM
Moonset: 01:31 AM
Moon Phase
( Waxing Gibbous )
Halfmoon Flats Airport Weather forecasts are usually fully updated every 4 hours.
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