Harrison Weather Forecast 15 Days, Weather in Harrison Today
Current weather conditions and 15 day weather forecast for Harrison, 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 Harrison
| 21 March 2026 Saturday 13.4 ° C / 56.2°F  Partly Cloudy |
Feels Like : 11.7 ° C / 53.1°F Humidity : % 46 Pressure : 1015 mb Wind Speed : 18 kmph / 11.2 miles from SW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 58 |
15 day weather forecast for Harrison, MT, USA
Weather Forecast for next 15 Days for Harrison 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 Harrison, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 March 2026 Friday |  Sunny |
8.1 ° C (46.6°F) |
17.9 ° C (64.2°F) |
12.9 ° C (55.2°F) |
% 39 | 0% | 1.4 | Sunrise:07:31 AM Sunset: 07:41 PM |
Moonrise:07:59 AM Moonset: 10:15 PM Moon Phase ( Waxing Crescent ) |
|
| 21 March 2026 Saturday |  Overcast |
0.1 ° C (32.2°F) |
11 ° C (51.8°F) |
8.6 ° C (47.5°F) |
% 52 | 0% | 1.1 | Sunrise:07:29 AM Sunset: 07:42 PM |
Moonrise:08:22 AM Moonset: 11:38 PM Moon Phase ( Waxing Crescent ) |
|
| 22 March 2026 Sunday | Partly Cloudy |
-2.8 ° C (27°F) |
7.7 ° C (45.9°F) |
2.2 ° C (36°F) |
% 45 | 0% | 1.2 | Sunrise:07:27 AM Sunset: 07:43 PM |
Moonrise:08:51 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 23 March 2026 Monday | Partly Cloudy |
2.9 ° C (37.2°F) |
10.3 ° C (50.5°F) |
6.9 ° C (44.4°F) |
% 33 | 0% | 1.1 | Sunrise:07:25 AM Sunset: 07:45 PM |
Moonrise:09:29 AM Moonset: 01:01 AM Moon Phase ( Waxing Crescent ) |
|
| 24 March 2026 Tuesday | Partly Cloudy |
5.5 ° C (42°F) |
12.1 ° C (53.8°F) |
8.2 ° C (46.8°F) |
% 43 | 0% | 1.1 | Sunrise:07:23 AM Sunset: 07:46 PM |
Moonrise:10:19 AM Moonset: 02:18 AM Moon Phase ( Waxing Crescent ) |
|
| 25 March 2026 Wednesday |  Patchy rain nearby |
-1.6 ° C (29.1°F) |
9 ° C (48.2°F) |
5.8 ° C (42.5°F) |
% 55 | 84% | 0 | Sunrise:07:21 AM Sunset: 07:47 PM |
Moonrise:11:22 AM Moonset: 03:26 AM Moon Phase ( First Quarter ) |
|
| 26 March 2026 Thursday | Sunny |
-6.1 ° C (21.1°F) |
2.4 ° C (36.3°F) |
-1.8 ° C (28.7°F) |
% 38 | 0% | 2 | Sunrise:07:19 AM Sunset: 07:49 PM |
Moonrise:12:35 PM Moonset: 04:19 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 March 2026 Friday | Sunny |
-0.4 ° C (31.3°F) |
8.4 ° C (47.2°F) |
3.5 ° C (38.4°F) |
% 28 | 0% | 2 | Sunrise:07:17 AM Sunset: 07:50 PM |
Moonrise:01:53 PM Moonset: 04:59 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 March 2026 Saturday | Partly Cloudy |
1.3 ° C (34.4°F) |
10.8 ° C (51.4°F) |
5.5 ° C (41.9°F) |
% 28 | 0% | 3 | Sunrise:07:15 AM Sunset: 07:51 PM |
Moonrise:03:11 PM Moonset: 05:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday | Overcast |
5.5 ° C (41.9°F) |
13 ° C (55.3°F) |
8.5 ° C (47.4°F) |
% 26 | 0% | 2 | Sunrise:07:13 AM Sunset: 07:53 PM |
Moonrise:04:26 PM Moonset: 05:52 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday | Patchy rain nearby |
-0 ° C (32°F) |
4 ° C (39.3°F) |
3.3 ° C (38°F) |
% 66 | 86% | 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 | Patchy rain nearby |
-1.7 ° C (28.9°F) |
6.6 ° C (43.9°F) |
2.3 ° C (36.2°F) |
% 50 | 80% | 1 | Sunrise:07:10 AM Sunset: 07:55 PM |
Moonrise:06:49 PM Moonset: 06:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday |  Heavy snow |
-4 ° C (24.8°F) |
-0.3 ° C (31.5°F) |
-1.5 ° C (29.2°F) |
% 86 | 61% | 1 | Sunrise:07:08 AM Sunset: 07:56 PM |
Moonrise:07:58 PM Moonset: 06:46 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday | Patchy rain nearby |
-4 ° C (24.8°F) |
8.6 ° C (47.6°F) |
2.1 ° C (35.7°F) |
% 70 | 85% | 1 | Sunrise:07:06 AM Sunset: 07:58 PM |
Moonrise:09:07 PM Moonset: 07:03 AM Moon Phase ( Full Moon ) |
|
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