Roundup Weather Forecast 15 Days, Weather in Roundup Today
Current weather conditions and 15 day weather forecast for Roundup, 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 Roundup
| 09 February 2026 Monday 1.1 ° C / 34°F  Light sleet showers |
Feels Like : -4.6 ° C / 23.7°F Humidity : % 96 Pressure : 1010 mb Wind Speed : 25.9 kmph / 16.1 miles from NNE  Visibility : 4.8 km Precipitation (rainfall) : 3.47 mm Cloud (%) : 100 |
15 day weather forecast for Roundup, MT, USA
Weather Forecast for next 15 Days for Roundup 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 Roundup, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 09 February 2026 Monday |  Heavy rain |
-0.3 ° C (31.5°F) |
3.1 ° C (37.6°F) |
2 ° C (35.7°F) |
% 96 | 85% | 0.3 | Sunrise:07:27 AM Sunset: 05:31 PM |
Moonrise:01:38 AM Moonset: 10:23 AM Moon Phase ( Last Quarter ) |
|
| 10 February 2026 Tuesday |  Sunny |
-7 ° C (19.4°F) |
3.9 ° C (39°F) |
-2.6 ° C (27.4°F) |
% 90 | 0% | 0.4 | Sunrise:07:25 AM Sunset: 05:33 PM |
Moonrise:02:45 AM Moonset: 10:53 AM Moon Phase ( Waning Crescent ) |
|
| 11 February 2026 Wednesday |  Mist |
-8.1 ° C (17.4°F) |
2.5 ° C (36.5°F) |
-3.2 ° C (26.3°F) |
% 95 | 0% | 0.3 | Sunrise:07:24 AM Sunset: 05:34 PM |
Moonrise:03:49 AM Moonset: 11:33 AM Moon Phase ( Waning Crescent ) |
|
| 12 February 2026 Thursday |  Partly Cloudy |
-5.7 ° C (21.7°F) |
7.4 ° C (45.3°F) |
-0.8 ° C (30.6°F) |
% 79 | 0% | 0.4 | Sunrise:07:22 AM Sunset: 05:36 PM |
Moonrise:04:45 AM Moonset: 12:23 PM Moon Phase ( Waning Crescent ) |
|
| 13 February 2026 Friday | Sunny |
-0.4 ° C (31.2°F) |
8 ° C (46.3°F) |
2.7 ° C (36.8°F) |
% 58 | 0% | 0 | Sunrise:07:21 AM Sunset: 05:37 PM |
Moonrise:05:34 AM Moonset: 01:23 PM Moon Phase ( Waning Crescent ) |
|
| 14 February 2026 Saturday |  Overcast |
-0.4 ° C (31.3°F) |
6.7 ° C (44.1°F) |
2.9 ° C (37.2°F) |
% 59 | 0% | 1 | Sunrise:07:19 AM Sunset: 05:39 PM |
Moonrise:06:12 AM Moonset: 02:31 PM Moon Phase ( Waning Crescent ) |
|
| 15 February 2026 Sunday | Partly Cloudy |
-1.1 ° C (30.1°F) |
4.3 ° C (39.7°F) |
0.9 ° C (33.6°F) |
% 72 | 0% | 2 | Sunrise:07:17 AM Sunset: 05:40 PM |
Moonrise:06:42 AM Moonset: 03:44 PM Moon Phase ( Waning Crescent ) |
|
| 16 February 2026 Monday |  Heavy snow |
-4 ° C (24.7°F) |
0.8 ° C (33.5°F) |
-1.7 ° C (28.9°F) |
% 83 | 73% | 1 | Sunrise:07:16 AM Sunset: 05:42 PM |
Moonrise:07:07 AM Moonset: 04:58 PM Moon Phase ( Waning Crescent ) |
|
| 17 February 2026 Tuesday | Partly Cloudy |
-4.6 ° C (23.8°F) |
2.8 ° C (37°F) |
-1.1 ° C (30.1°F) |
% 73 | 0% | 2 | Sunrise:07:14 AM Sunset: 05:43 PM |
Moonrise:07:27 AM Moonset: 06:12 PM Moon Phase ( New Moon ) |
|
| 18 February 2026 Wednesday | Partly Cloudy |
-10.9 ° C (12.5°F) |
-3.6 ° C (25.5°F) |
-5.6 ° C (21.9°F) |
% 70 | 0% | 2 | Sunrise:07:13 AM Sunset: 05:45 PM |
Moonrise:07:45 AM Moonset: 07:28 PM Moon Phase ( Waxing Crescent ) |
|
| 19 February 2026 Thursday |  Moderate snow |
-15.2 ° C (4.7°F) |
-13.7 ° C (7.3°F) |
-14.1 ° C (6.5°F) |
% 85 | 84% | 1 | Sunrise:07:11 AM Sunset: 05:46 PM |
Moonrise:08:02 AM Moonset: 08:43 PM Moon Phase ( Waxing Crescent ) |
|
| 20 February 2026 Friday |  Freezing fog |
-17.4 ° C (0.8°F) |
-10.4 ° C (13.3°F) |
-13.4 ° C (8°F) |
% 90 | 80% | 1 | Sunrise:07:09 AM Sunset: 05:48 PM |
Moonrise:08:20 AM Moonset: 10:00 PM Moon Phase ( Waxing Crescent ) |
|
| 21 February 2026 Saturday | Moderate snow |
-24.9 ° C (-12.7°F) |
-14.5 ° C (5.8°F) |
-16.8 ° C (1.7°F) |
% 92 | 80% | 1 | Sunrise:07:07 AM Sunset: 05:49 PM |
Moonrise:08:39 AM Moonset: 11:20 PM Moon Phase ( Waxing Crescent ) |
|
| 22 February 2026 Sunday |  Light snow |
-24.9 ° C (-12.7°F) |
-11.4 ° C (11.5°F) |
-18 ° C (-0.4°F) |
% 94 | 82% | 1 | Sunrise:07:06 AM Sunset: 05:51 PM |
Moonrise:09:03 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
Add a link to your web page; copy and paste this html to your web page