Roy Weather Forecast 15 Days, Weather in Roy Today
Current weather conditions and 15 day weather forecast for Roy, 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 Roy
| 21 March 2026 Saturday 11.6 ° C / 52.9°F  Clear |
Feels Like : 10.9 ° C / 51.7°F Humidity : % 49 Pressure : 1010 mb Wind Speed : 7.2 kmph / 4.5 miles from W  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Roy, MT, USA
Weather Forecast for next 15 Days for Roy 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 Roy, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 21 March 2026 Saturday |  Moderate rain |
5.9 ° C (42.6°F) |
14.7 ° C (58.5°F) |
11 ° C (51.9°F) |
% 62 | 78% | 0.5 | Sunrise:07:16 AM Sunset: 07:30 PM |
Moonrise:08:04 AM Moonset: 11:31 PM Moon Phase ( Waxing Crescent ) |
|
| 22 March 2026 Sunday |  Partly Cloudy |
1.5 ° C (34.7°F) |
13.2 ° C (55.8°F) |
6.9 ° C (44.5°F) |
% 57 | 0% | 0.9 | Sunrise:07:14 AM Sunset: 07:31 PM |
Moonrise:08:31 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 23 March 2026 Monday | Partly Cloudy |
1.3 ° C (34.3°F) |
12.7 ° C (54.9°F) |
6.6 ° C (43.9°F) |
% 49 | 0% | 0.9 | Sunrise:07:12 AM Sunset: 07:33 PM |
Moonrise:09:07 AM Moonset: 12:56 AM Moon Phase ( Waxing Crescent ) |
|
| 24 March 2026 Tuesday | Partly Cloudy |
2.6 ° C (36.6°F) |
19.4 ° C (67°F) |
9.4 ° C (49°F) |
% 49 | 0% | 0.9 | Sunrise:07:10 AM Sunset: 07:34 PM |
Moonrise:09:55 AM Moonset: 02:15 AM Moon Phase ( Waxing Crescent ) |
|
| 25 March 2026 Wednesday | Sunny |
4.5 ° C (40.1°F) |
14.7 ° C (58.4°F) |
10.4 ° C (50.7°F) |
% 51 | 0% | 0 | Sunrise:07:08 AM Sunset: 07:35 PM |
Moonrise:10:58 AM Moonset: 03:23 AM Moon Phase ( First Quarter ) |
|
| 26 March 2026 Thursday | Sunny |
-4.2 ° C (24.4°F) |
4.5 ° C (40°F) |
0.4 ° C (32.7°F) |
% 44 | 0% | 2 | Sunrise:07:06 AM Sunset: 07:37 PM |
Moonrise:12:12 PM Moonset: 04:15 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 March 2026 Friday | Sunny |
-1 ° C (30.2°F) |
14.9 ° C (58.9°F) |
5.4 ° C (41.8°F) |
% 35 | 0% | 3 | Sunrise:07:04 AM Sunset: 07:38 PM |
Moonrise:01:33 PM Moonset: 04:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 March 2026 Saturday |  Patchy rain nearby |
4.7 ° C (40.5°F) |
9.2 ° C (48.5°F) |
7.3 ° C (45.1°F) |
% 45 | 85% | 2 | Sunrise:07:01 AM Sunset: 07:40 PM |
Moonrise:02:52 PM Moonset: 05:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday | Patchy rain nearby |
1.8 ° C (35.2°F) |
6.1 ° C (43.1°F) |
3.7 ° C (38.7°F) |
% 72 | 85% | 1 | Sunrise:06:59 AM Sunset: 07:41 PM |
Moonrise:04:09 PM Moonset: 05:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday | Patchy rain nearby |
1.3 ° C (34.4°F) |
6.1 ° C (43°F) |
3.8 ° C (38.9°F) |
% 52 | 0% | 1 | Sunrise:06:57 AM Sunset: 07:42 PM |
Moonrise:05:24 PM Moonset: 06:01 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday | Partly Cloudy |
-0.3 ° C (31.5°F) |
12.3 ° C (54.1°F) |
5.7 ° C (42.2°F) |
% 60 | 0% | 3 | Sunrise:06:55 AM Sunset: 07:44 PM |
Moonrise:06:36 PM Moonset: 06:16 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday | Patchy rain nearby |
3 ° C (37.5°F) |
11.6 ° C (52.9°F) |
6.1 ° C (43°F) |
% 71 | 65% | 2 | Sunrise:06:53 AM Sunset: 07:45 PM |
Moonrise:07:47 PM Moonset: 06:31 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday | Patchy rain nearby |
0.8 ° C (33.4°F) |
2.3 ° C (36.1°F) |
2.5 ° C (36.5°F) |
% 92 | 86% | 1 | Sunrise:06:51 AM Sunset: 07:47 PM |
Moonrise:08:57 PM Moonset: 06:47 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday |  Blowing snow |
-0.8 ° C (30.6°F) |
3.2 ° C (37.8°F) |
0.9 ° C (33.6°F) |
% 77 | 89% | 1 | Sunrise:06:49 AM Sunset: 07:48 PM |
Moonrise:10:08 PM Moonset: 07:04 AM Moon Phase ( Waning Gibbous ) |
|
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