Hays Weather Forecast 15 Days, Weather in Hays Today
Current weather conditions and 15 day weather forecast for Hays, 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 Hays
| 21 March 2026 Saturday 10.4 ° C / 50.8°F  Clear |
Feels Like : 8.5 ° C / 47.3°F Humidity : % 58 Pressure : 1009 mb Wind Speed : 27 kmph / 16.8 miles from WNW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Hays, MT, USA
Weather Forecast for next 15 Days for Hays 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 Hays, 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 |  Patchy rain nearby |
2.5 ° C (36.5°F) |
10.9 ° C (51.6°F) |
8.7 ° C (47.6°F) |
% 65 | 86% | 0.6 | Sunrise:07:16 AM Sunset: 07:30 PM |
Moonrise:08:02 AM Moonset: 11:34 PM Moon Phase ( Waxing Crescent ) |
|
| 22 March 2026 Sunday |  Partly Cloudy |
0.8 ° C (33.4°F) |
12.1 ° C (53.8°F) |
5.5 ° C (41.9°F) |
% 61 | 0% | 0.9 | Sunrise:07:14 AM Sunset: 07:32 PM |
Moonrise:08:28 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 23 March 2026 Monday |  Cloudy |
0.1 ° C (32.2°F) |
10.7 ° C (51.3°F) |
5.4 ° C (41.6°F) |
% 50 | 0% | 0.9 | Sunrise:07:12 AM Sunset: 07:33 PM |
Moonrise:09:03 AM Moonset: 01:00 AM Moon Phase ( Waxing Crescent ) |
|
| 24 March 2026 Tuesday | Cloudy |
1.2 ° C (34.1°F) |
12.4 ° C (54.4°F) |
6.5 ° C (43.7°F) |
% 55 | 0% | 0.9 | Sunrise:07:10 AM Sunset: 07:34 PM |
Moonrise:09:51 AM Moonset: 02:20 AM Moon Phase ( Waxing Crescent ) |
|
| 25 March 2026 Wednesday | Sunny |
3.8 ° C (38.8°F) |
12.8 ° C (55°F) |
9.1 ° C (48.4°F) |
% 53 | 0% | 0 | Sunrise:07:08 AM Sunset: 07:36 PM |
Moonrise:10:53 AM Moonset: 03:28 AM Moon Phase ( First Quarter ) |
|
| 26 March 2026 Thursday | Partly Cloudy |
-6.9 ° C (19.5°F) |
2.5 ° C (36.5°F) |
-2.7 ° C (27.1°F) |
% 46 | 0% | 2 | Sunrise:07:05 AM Sunset: 07:37 PM |
Moonrise:12:08 PM Moonset: 04:20 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 March 2026 Friday | Sunny |
-2.9 ° C (26.9°F) |
13.3 ° C (55.9°F) |
4.2 ° C (39.5°F) |
% 34 | 0% | 2 | Sunrise:07:03 AM Sunset: 07:39 PM |
Moonrise:01:29 PM Moonset: 04:57 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 March 2026 Saturday | Partly Cloudy |
3.7 ° C (38.7°F) |
8.4 ° C (47.1°F) |
6.3 ° C (43.4°F) |
% 41 | 0% | 3 | Sunrise:07:01 AM Sunset: 07:40 PM |
Moonrise:02:50 PM Moonset: 05:25 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday | Patchy rain nearby |
-0.3 ° C (31.5°F) |
2.7 ° C (36.8°F) |
1.5 ° C (34.7°F) |
% 79 | 88% | 1 | Sunrise:06:59 AM Sunset: 07:42 PM |
Moonrise:04:08 PM Moonset: 05:46 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday |  Light freezing rain |
-2.9 ° C (26.7°F) |
3.5 ° C (38.3°F) |
0.8 ° C (33.5°F) |
% 64 | 77% | 1 | Sunrise:06:57 AM Sunset: 07:43 PM |
Moonrise:05:24 PM Moonset: 06:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday | Partly Cloudy |
-0.8 ° C (30.6°F) |
10.5 ° C (50.9°F) |
4 ° C (39.1°F) |
% 65 | 0% | 2 | Sunrise:06:55 AM Sunset: 07:45 PM |
Moonrise:06:36 PM Moonset: 06:17 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday |  Overcast |
2 ° C (35.6°F) |
6.4 ° C (43.6°F) |
3.7 ° C (38.7°F) |
% 80 | 0% | 1 | Sunrise:06:53 AM Sunset: 07:46 PM |
Moonrise:07:48 PM Moonset: 06:31 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday |  Blizzard |
-0.5 ° C (31.1°F) |
0.8 ° C (33.5°F) |
0.8 ° C (33.4°F) |
% 98 | 80% | 1 | Sunrise:06:51 AM Sunset: 07:48 PM |
Moonrise:08:59 PM Moonset: 06:46 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday |  Light snow |
-2.9 ° C (26.8°F) |
0.6 ° C (33°F) |
-1.2 ° C (29.9°F) |
% 90 | 86% | 1 | Sunrise:06:49 AM Sunset: 07:49 PM |
Moonrise:10:11 PM Moonset: 07:02 AM Moon Phase ( Waning Gibbous ) |
|
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