Sun Valley Weather Forecast 15 Days, Weather in Sun Valley Today
Current weather conditions and 15 day weather forecast for Sun Valley, Idaho, 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 Sun Valley
| 19 December 2025 Friday 6.3 ° C / 43.3°F  Overcast |
Feels Like : 3.8 ° C / 38.8°F Humidity : % 65 Pressure : 1009 mb Wind Speed : 12.2 kmph / 7.6 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Sun Valley, ID, USA
Weather Forecast for next 15 Days for Sun Valley 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 Sun Valley, Idaho 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 19 December 2025 Friday |  Moderate or heavy snow showers |
-12.1 ° C (10.2°F) |
1.5 ° C (34.7°F) |
-2.2 ° C (28.1°F) |
% 93 | 70% | 0.1 | Sunrise:08:06 AM Sunset: 05:03 PM |
Moonrise:08:15 AM Moonset: 04:26 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Sunny |
-17.9 ° C (-0.2°F) |
-2.1 ° C (28.2°F) |
-10.8 ° C (12.5°F) |
% 78 | 0% | 0.3 | Sunrise:08:07 AM Sunset: 05:04 PM |
Moonrise:09:06 AM Moonset: 05:23 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Mist |
-8.8 ° C (16.2°F) |
1.6 ° C (34.9°F) |
-1.9 ° C (28.6°F) |
% 96 | 89% | 0.1 | Sunrise:08:07 AM Sunset: 05:04 PM |
Moonrise:09:49 AM Moonset: 06:26 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday |  Heavy snow |
-5.8 ° C (21.5°F) |
2.2 ° C (36°F) |
-1 ° C (30.3°F) |
% 98 | 70% | 0.3 | Sunrise:08:08 AM Sunset: 05:05 PM |
Moonrise:10:23 AM Moonset: 07:35 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Moderate snow |
-3.7 ° C (25.3°F) |
2.5 ° C (36.5°F) |
-1.2 ° C (29.9°F) |
% 97 | 76% | 0 | Sunrise:08:08 AM Sunset: 05:05 PM |
Moonrise:10:51 AM Moonset: 08:43 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Moderate or heavy snow showers |
-3 ° C (26.5°F) |
1.9 ° C (35.4°F) |
-0.5 ° C (31°F) |
% 91 | 76% | 1 | Sunrise:08:08 AM Sunset: 05:06 PM |
Moonrise:11:15 AM Moonset: 09:53 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Partly Cloudy |
-6.7 ° C (19.9°F) |
2 ° C (35.6°F) |
-2.9 ° C (26.8°F) |
% 87 | 0% | 2 | Sunrise:08:09 AM Sunset: 05:06 PM |
Moonrise:11:36 AM Moonset: 11:02 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Heavy snow |
-5.7 ° C (21.8°F) |
2 ° C (35.6°F) |
-1.2 ° C (29.9°F) |
% 95 | 89% | 1 | Sunrise:08:09 AM Sunset: 05:07 PM |
Moonrise:11:55 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Heavy snow |
-4.4 ° C (24°F) |
-0.7 ° C (30.8°F) |
-2.6 ° C (27.3°F) |
% 98 | 82% | 1 | Sunrise:08:09 AM Sunset: 05:08 PM |
Moonrise:12:14 PM Moonset: 12:13 AM Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Partly Cloudy |
-13.8 ° C (7.1°F) |
-1.2 ° C (29.9°F) |
-7.5 ° C (18.5°F) |
% 86 | 0% | 2 | Sunrise:08:10 AM Sunset: 05:09 PM |
Moonrise:12:36 PM Moonset: 01:26 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Heavy snow |
-17.4 ° C (0.7°F) |
-2.6 ° C (27.4°F) |
-9.4 ° C (15.1°F) |
% 91 | 77% | 1 | Sunrise:08:10 AM Sunset: 05:09 PM |
Moonrise:01:01 PM Moonset: 02:42 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
-19.2 ° C (-2.6°F) |
-5.9 ° C (21.3°F) |
-15.2 ° C (4.6°F) |
% 80 | 0% | 2 | Sunrise:08:10 AM Sunset: 05:10 PM |
Moonrise:01:33 PM Moonset: 04:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-20 ° C (-4.1°F) |
-7.7 ° C (18.1°F) |
-16.2 ° C (2.8°F) |
% 79 | 0% | 2 | Sunrise:08:10 AM Sunset: 05:11 PM |
Moonrise:02:13 PM Moonset: 05:25 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Sunny |
-19.9 ° C (-3.7°F) |
-7.7 ° C (18.2°F) |
-15.6 ° C (3.9°F) |
% 73 | 0% | 2 | Sunrise:08:10 AM Sunset: 05:12 PM |
Moonrise:03:08 PM Moonset: 06:44 AM Moon Phase ( Waxing Gibbous ) |
|
Add a link to your web page; copy and paste this html to your web page