Sidney Weather Forecast 15 Days, Weather in Sidney Today
Current weather conditions and 15 day weather forecast for Sidney, 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 Sidney
| 24 September 2026 Thursday 18.3 ° C / 64.9°F  Clear |
Feels Like : 18.8 ° C / 65.8°F Humidity : % 86 Pressure : 1015 mb Wind Speed : 7.6 kmph / 4.7 miles from SSW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Sidney, MT, USA
Weather Forecast for next 15 Days for Sidney 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 Sidney, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 24 September 2026 Thursday | Sunny |
18.2 ° C (64.8°F) |
27.6 ° C (81.7°F) |
22.5 ° C (72.4°F) |
% 47 | 1% | 4.4 | Sunrise:06:46 AM Sunset: 06:51 PM |
Moonrise:06:03 PM Moonset: 04:39 AM Moon Phase ( Full Moon ) |
|
| 25 September 2026 Friday | Sunny |
16.5 ° C (61.8°F) |
25.1 ° C (77.2°F) |
21.4 ° C (70.5°F) |
% 39 | 2% | 4.6 | Sunrise:06:47 AM Sunset: 06:48 PM |
Moonrise:06:17 PM Moonset: 05:46 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday |  Overcast |
14.2 ° C (57.5°F) |
18.6 ° C (65.5°F) |
16.4 ° C (61.6°F) |
% 41 | 5% | 4.2 | Sunrise:06:48 AM Sunset: 06:46 PM |
Moonrise:06:31 PM Moonset: 06:54 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Overcast |
10.6 ° C (51.1°F) |
19.6 ° C (67.2°F) |
15.2 ° C (59.3°F) |
% 33 | 6% | 3.8 | Sunrise:06:50 AM Sunset: 06:44 PM |
Moonrise:06:47 PM Moonset: 08:04 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday |  Patchy rain nearby |
5 ° C (41°F) |
15.8 ° C (60.4°F) |
9.1 ° C (48.5°F) |
% 64 | 68% | 3 | Sunrise:06:51 AM Sunset: 06:42 PM |
Moonrise:07:07 PM Moonset: 09:17 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday | Sunny |
4.2 ° C (39.6°F) |
13.7 ° C (56.7°F) |
8.4 ° C (47.1°F) |
% 61 | 57% | 4 | Sunrise:06:53 AM Sunset: 06:40 PM |
Moonrise:07:31 PM Moonset: 10:32 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday | Sunny |
7.3 ° C (45.1°F) |
17.9 ° C (64.2°F) |
12.9 ° C (55.3°F) |
% 47 | 2% | 5 | Sunrise:06:54 AM Sunset: 06:38 PM |
Moonrise:08:03 PM Moonset: 11:48 AM Moon Phase ( Waning Gibbous ) |
|
| 01 October 2026 Thursday | Sunny |
9.5 ° C (49.1°F) |
14.4 ° C (57.9°F) |
12.6 ° C (54.8°F) |
% 41 | 2% | 4 | Sunrise:06:55 AM Sunset: 06:36 PM |
Moonrise:08:46 PM Moonset: 01:02 PM Moon Phase ( Last Quarter ) |
|
| 02 October 2026 Friday | Overcast |
7.9 ° C (46.3°F) |
15.5 ° C (59.9°F) |
12.2 ° C (53.9°F) |
% 33 | 5% | 3 | Sunrise:06:57 AM Sunset: 06:34 PM |
Moonrise:09:44 PM Moonset: 02:09 PM Moon Phase ( Last Quarter ) |
|
| 03 October 2026 Saturday |  Partly Cloudy |
6.5 ° C (43.7°F) |
13.4 ° C (56.1°F) |
10.7 ° C (51.2°F) |
% 45 | 17% | 4 | Sunrise:06:58 AM Sunset: 06:32 PM |
Moonrise:10:55 PM Moonset: 03:03 PM Moon Phase ( Last Quarter ) |
|
| 04 October 2026 Sunday |  Light rain shower |
4.7 ° C (40.5°F) |
12.2 ° C (54°F) |
7.2 ° C (45°F) |
% 67 | 76% | 2 | Sunrise:07:00 AM Sunset: 06:30 PM |
Moonrise:Does not rise today Moonset: 03:44 PM Moon Phase ( Last Quarter ) |
|
| 05 October 2026 Monday | Patchy rain nearby |
3.6 ° C (38.5°F) |
8.2 ° C (46.7°F) |
5.1 ° C (41.2°F) |
% 81 | 57% | 2 | Sunrise:07:01 AM Sunset: 06:28 PM |
Moonrise:12:16 AM Moonset: 04:16 PM Moon Phase ( Waning Crescent ) |
|
| 06 October 2026 Tuesday | Sunny |
5.1 ° C (41.1°F) |
16.3 ° C (61.4°F) |
10.6 ° C (51°F) |
% 64 | 7% | 5 | Sunrise:07:02 AM Sunset: 06:26 PM |
Moonrise:01:41 AM Moonset: 04:40 PM Moon Phase ( Waning Crescent ) |
|
| 07 October 2026 Wednesday | Sunny |
8.4 ° C (47.1°F) |
15.2 ° C (59.4°F) |
12.7 ° C (54.8°F) |
% 58 | 5% | 5 | Sunrise:07:04 AM Sunset: 06:24 PM |
Moonrise:03:05 AM Moonset: 05:01 PM Moon Phase ( Waning Crescent ) |
|
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