Augusta Weather Forecast 15 Days, Weather in Augusta Today

Current weather conditions and 15 day weather forecast for Augusta, 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 Augusta

18 December 2025 Thursday
-3 ° C / 26.7°F
Overcast
Overcast
Feels Like : -9 ° C / 15.8°F
Humidity : % 70
Pressure : 1008 mb
Wind Speed : 10.8 kmph / 6.7 miles from SWSW
Visibility : 10 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 100

15 day weather forecast for Augusta, MT, USA

Weather Forecast for next 15 Days for Augusta 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 Augusta, 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
18 December 2025 Thursday Moderate or heavy snow showers Moderate or heavy snow showers -5.1 ° C
(22.8°F)
-1.9 ° C
(28.6°F)
-3.5 ° C
(25.7°F)
% 74 69% 0.1 Sunrise:08:13 AM
Sunset: 04:41 PM
Moonrise:07:31 AM
Moonset: 03:11 PM
Moon Phase
( Waning Crescent )
19 December 2025 Friday Blowing snow Blowing snow -6.3 ° C
(20.7°F)
0.1 ° C
(32.2°F)
-2.5 ° C
(27.5°F)
% 82 66% 0.1 Sunrise:08:14 AM
Sunset: 04:41 PM
Moonrise:08:30 AM
Moonset: 03:58 PM
Moon Phase
( New Moon )
20 December 2025 Saturday Moderate or heavy snow showers Moderate or heavy snow showers -8.1 ° C
(17.4°F)
-4 ° C
(24.8°F)
-6.2 ° C
(20.8°F)
% 75 74% 0.2 Sunrise:08:15 AM
Sunset: 04:42 PM
Moonrise:09:20 AM
Moonset: 04:56 PM
Moon Phase
( New Moon )
21 December 2025 Sunday Moderate or heavy snow showers Moderate or heavy snow showers -9 ° C
(15.7°F)
-1.4 ° C
(29.4°F)
-6 ° C
(21.3°F)
% 69 86% 0.1 Sunrise:08:15 AM
Sunset: 04:42 PM
Moonrise:10:00 AM
Moonset: 06:02 PM
Moon Phase
( Waxing Crescent )
22 December 2025 Monday Patchy moderate snow Patchy moderate snow -7 ° C
(19.5°F)
-0.4 ° C
(31.3°F)
-4 ° C
(24.9°F)
% 83 62% 0 Sunrise:08:16 AM
Sunset: 04:43 PM
Moonrise:10:32 AM
Moonset: 07:13 PM
Moon Phase
( Waxing Crescent )
23 December 2025 Tuesday Partly Cloudy  Partly Cloudy -4.3 ° C
(24.3°F)
1.9 ° C
(35.5°F)
-2.4 ° C
(27.7°F)
% 85 0% 2 Sunrise:08:16 AM
Sunset: 04:43 PM
Moonrise:10:56 AM
Moonset: 08:26 PM
Moon Phase
( Waxing Crescent )
24 December 2025 Wednesday Patchy moderate snow Patchy moderate snow -8.9 ° C
(16°F)
-3.8 ° C
(25.1°F)
-5.4 ° C
(22.3°F)
% 78 78% 1 Sunrise:08:16 AM
Sunset: 04:44 PM
Moonrise:11:16 AM
Moonset: 09:39 PM
Moon Phase
( Waxing Crescent )
25 December 2025 Thursday Sunny Sunny -13.1 ° C
(8.4°F)
-3.5 ° C
(25.7°F)
-9.6 ° C
(14.7°F)
% 67 0% 2 Sunrise:08:17 AM
Sunset: 04:45 PM
Moonrise:11:34 AM
Moonset: 10:52 PM
Moon Phase
( Waxing Crescent )
26 December 2025 Friday Sunny Sunny -10.9 ° C
(12.4°F)
0.9 ° C
(33.6°F)
-6.6 ° C
(20.2°F)
% 63 0% 2 Sunrise:08:17 AM
Sunset: 04:46 PM
Moonrise:11:49 AM
Moonset: No moonset
Moon Phase
( Waxing Crescent )
27 December 2025 Saturday Sunny Sunny -7.7 ° C
(18.2°F)
1.5 ° C
(34.6°F)
-5.1 ° C
(22.8°F)
% 61 0% 2 Sunrise:08:17 AM
Sunset: 04:46 PM
Moonrise:12:05 PM
Moonset: 12:06 AM
Moon Phase
( First Quarter )
28 December 2025 Sunday Sunny Sunny -7.5 ° C
(18.5°F)
2.2 ° C
(36°F)
-4.5 ° C
(23.9°F)
% 67 0% 2 Sunrise:08:17 AM
Sunset: 04:47 PM
Moonrise:12:23 PM
Moonset: 01:23 AM
Moon Phase
( Waxing Gibbous )
29 December 2025 Monday Sunny Sunny -4.4 ° C
(24°F)
2.8 ° C
(37.1°F)
-2.2 ° C
(28°F)
% 63 0% 2 Sunrise:08:18 AM
Sunset: 04:48 PM
Moonrise:12:44 PM
Moonset: 02:44 AM
Moon Phase
( Waxing Gibbous )
30 December 2025 Tuesday Sunny Sunny -4 ° C
(24.8°F)
2.4 ° C
(36.3°F)
-2.1 ° C
(28.3°F)
% 69 0% 2 Sunrise:08:18 AM
Sunset: 04:49 PM
Moonrise:01:11 PM
Moonset: 04:08 AM
Moon Phase
( Waxing Gibbous )
31 December 2025 Wednesday Cloudy  Cloudy -5.3 ° C
(22.4°F)
0.6 ° C
(33°F)
-3 ° C
(26.5°F)
% 79 0% 1 Sunrise:08:18 AM
Sunset: 04:50 PM
Moonrise:01:48 PM
Moonset: 05:35 AM
Moon Phase
( Waxing Gibbous )
Augusta Weather forecasts are usually fully updated every 4 hours.
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