Great Falls Weather Forecast 15 Days, Weather in Great Falls Today
Current weather conditions and 15 day weather forecast for Great Falls, 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 Great Falls
| 26 March 2026 Thursday 4.4 ° C / 39.9°F  Partly Cloudy |
Feels Like : -1.5 ° C / 29.2°F Humidity : % 31 Pressure : 1027 mb Wind Speed : 40.3 kmph / 25.1 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15 day weather forecast for Great Falls, MT, USA
Weather Forecast for next 15 Days for Great Falls 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 Great Falls, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 26 March 2026 Thursday |  Sunny |
-1.3 ° C (29.7°F) |
7.9 ° C (46.2°F) |
3.4 ° C (38.1°F) |
% 45 | 0% | 4 | Sunrise:07:16 AM Sunset: 07:47 PM |
Moonrise:12:23 PM Moonset: 04:26 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 March 2026 Friday | Sunny |
-4.2 ° C (24.4°F) |
17.3 ° C (63.1°F) |
4.9 ° C (40.9°F) |
% 38 | 0% | 4 | Sunrise:07:14 AM Sunset: 07:48 PM |
Moonrise:01:43 PM Moonset: 05:04 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 March 2026 Saturday |  Overcast |
-0.3 ° C (31.5°F) |
15.4 ° C (59.7°F) |
7.3 ° C (45.1°F) |
% 47 | 0% | 3 | Sunrise:07:12 AM Sunset: 07:50 PM |
Moonrise:03:03 PM Moonset: 05:33 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday |  Cloudy |
1.9 ° C (35.4°F) |
13.5 ° C (56.3°F) |
6.9 ° C (44.5°F) |
% 59 | 0% | 4 | Sunrise:07:10 AM Sunset: 07:51 PM |
Moonrise:04:20 PM Moonset: 05:54 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday | Sunny |
7.1 ° C (44.9°F) |
21.8 ° C (71.2°F) |
13.4 ° C (56.2°F) |
% 41 | 0% | 4 | Sunrise:07:08 AM Sunset: 07:53 PM |
Moonrise:05:35 PM Moonset: 06:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday |  Patchy rain nearby |
1.8 ° C (35.3°F) |
5.6 ° C (42.1°F) |
6.7 ° C (44.1°F) |
% 59 | 64% | 2 | Sunrise:07:06 AM Sunset: 07:54 PM |
Moonrise:06:47 PM Moonset: 06:27 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday | Patchy rain nearby |
0.6 ° C (33°F) |
9 ° C (48.3°F) |
4.1 ° C (39.3°F) |
% 66 | 75% | 1 | Sunrise:07:04 AM Sunset: 07:55 PM |
Moonrise:07:58 PM Moonset: 06:42 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday | Patchy rain nearby |
1.8 ° C (35.3°F) |
7.5 ° C (45.5°F) |
4.6 ° C (40.3°F) |
% 60 | 86% | 1 | Sunrise:07:02 AM Sunset: 07:57 PM |
Moonrise:09:08 PM Moonset: 06:57 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday |  Heavy snow |
-1.9 ° C (28.7°F) |
3.4 ° C (38.1°F) |
0.8 ° C (33.4°F) |
% 75 | 64% | 1 | Sunrise:07:00 AM Sunset: 07:58 PM |
Moonrise:10:19 PM Moonset: 07:14 AM Moon Phase ( Waning Gibbous ) |
|
| 04 April 2026 Saturday | Partly Cloudy |
-1.3 ° C (29.7°F) |
9.9 ° C (49.8°F) |
4.3 ° C (39.7°F) |
% 58 | 0% | 2 | Sunrise:06:58 AM Sunset: 08:00 PM |
Moonrise:11:30 PM Moonset: 07:34 AM Moon Phase ( Waning Gibbous ) |
|
| 05 April 2026 Sunday | Patchy rain nearby |
4 ° C (39.3°F) |
13.7 ° C (56.7°F) |
7.9 ° C (46.2°F) |
% 64 | 72% | 2 | Sunrise:06:56 AM Sunset: 08:01 PM |
Moonrise:No moonrise Moonset: 07:59 AM Moon Phase ( Waning Gibbous ) |
|
| 06 April 2026 Monday | Patchy rain nearby |
-2.1 ° C (28.3°F) |
5.8 ° C (42.5°F) |
3.4 ° C (38.2°F) |
% 57 | 75% | 1 | Sunrise:06:54 AM Sunset: 08:02 PM |
Moonrise:12:38 AM Moonset: 08:30 AM Moon Phase ( Waning Gibbous ) |
|
| 07 April 2026 Tuesday |  Moderate snow |
-3.8 ° C (25.2°F) |
1.4 ° C (34.4°F) |
-1.9 ° C (28.5°F) |
% 71 | 75% | 1 | Sunrise:06:52 AM Sunset: 08:04 PM |
Moonrise:01:41 AM Moonset: 09:12 AM Moon Phase ( Waning Gibbous ) |
|
| 08 April 2026 Wednesday | Sunny |
-5.3 ° C (22.5°F) |
13 ° C (55.5°F) |
2.8 ° C (37.1°F) |
% 56 | 0% | 2 | Sunrise:06:50 AM Sunset: 08:05 PM |
Moonrise:02:36 AM Moonset: 10:03 AM Moon Phase ( Waning Gibbous ) |
|
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