St. Charles Weather Forecast 15 Days, Weather in St. Charles Today
Current weather conditions and 15 day weather forecast for St. Charles, 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 St. Charles
| 22 December 2025 Monday 13.9 ° C / 57°F  Overcast |
Feels Like : 13.1 ° C / 55.5°F Humidity : % 39 Pressure : 1015 mb Wind Speed : 11.9 kmph / 7.4 miles from S  Visibility : 16 km Precipitation (rainfall) : 6.14 mm Cloud (%) : 100 |
15 day weather forecast for St. Charles, ID, USA
Weather Forecast for next 15 Days for St. Charles 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 St. Charles, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 22 December 2025 Monday |  Moderate rain |
-1.9 ° C (28.6°F) |
6.5 ° C (43.7°F) |
2.5 ° C (36.4°F) |
% 97 | 88% | 0.2 | Sunrise:07:51 AM Sunset: 04:57 PM |
Moonrise:10:06 AM Moonset: 07:27 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Overcast |
-3.5 ° C (25.8°F) |
6.4 ° C (43.5°F) |
0.5 ° C (32.9°F) |
% 88 | 0% | 0.2 | Sunrise:07:52 AM Sunset: 04:58 PM |
Moonrise:10:35 AM Moonset: 08:34 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Moderate rain |
-5 ° C (23°F) |
8.5 ° C (47.3°F) |
1.3 ° C (34.4°F) |
% 87 | 75% | 0.3 | Sunrise:07:52 AM Sunset: 04:59 PM |
Moonrise:11:00 AM Moonset: 09:43 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Thundery outbreaks in nearby |
-3.1 ° C (26.4°F) |
4.8 ° C (40.7°F) |
0.5 ° C (32.9°F) |
% 87 | 83% | 0.2 | Sunrise:07:52 AM Sunset: 04:59 PM |
Moonrise:11:22 AM Moonset: 10:51 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Patchy rain nearby |
-0.6 ° C (30.9°F) |
4.6 ° C (40.2°F) |
1.3 ° C (34.4°F) |
% 83 | 82% | 0 | Sunrise:07:53 AM Sunset: 05:00 PM |
Moonrise:11:43 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Light snow |
-1.4 ° C (29.4°F) |
3.6 ° C (38.4°F) |
0.5 ° C (33°F) |
% 91 | 83% | 1 | Sunrise:07:53 AM Sunset: 05:01 PM |
Moonrise:12:03 PM Moonset: 12:00 AM Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Light freezing rain |
-2.4 ° C (27.7°F) |
3.2 ° C (37.7°F) |
0.9 ° C (33.6°F) |
% 87 | 89% | 1 | Sunrise:07:53 AM Sunset: 05:01 PM |
Moonrise:12:26 PM Moonset: 01:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Partly Cloudy |
-6.9 ° C (19.7°F) |
0.7 ° C (33.3°F) |
-4.2 ° C (24.4°F) |
% 81 | 0% | 2 | Sunrise:07:53 AM Sunset: 05:02 PM |
Moonrise:12:52 PM Moonset: 02:26 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Sunny |
-6.5 ° C (20.3°F) |
2.3 ° C (36.2°F) |
-3.9 ° C (24.9°F) |
% 63 | 0% | 2 | Sunrise:07:54 AM Sunset: 05:03 PM |
Moonrise:01:25 PM Moonset: 03:45 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Patchy moderate snow |
-2.7 ° C (27.2°F) |
3.2 ° C (37.8°F) |
-0.3 ° C (31.5°F) |
% 63 | 69% | 1 | Sunrise:07:54 AM Sunset: 05:04 PM |
Moonrise:02:07 PM Moonset: 05:06 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday |  Moderate snow |
-8.9 ° C (16.1°F) |
-0.6 ° C (31°F) |
-3.5 ° C (25.7°F) |
% 91 | 84% | 1 | Sunrise:07:54 AM Sunset: 05:05 PM |
Moonrise:03:02 PM Moonset: 06:25 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Partly Cloudy |
-15.9 ° C (3.4°F) |
-7 ° C (19.4°F) |
-11.6 ° C (11.2°F) |
% 75 | 0% | 2 | Sunrise:07:54 AM Sunset: 05:05 PM |
Moonrise:04:10 PM Moonset: 07:35 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Light freezing rain |
-16.4 ° C (2.5°F) |
-7.6 ° C (18.4°F) |
-13.8 ° C (7.2°F) |
% 90 | 0% | 1 | Sunrise:07:54 AM Sunset: 05:06 PM |
Moonrise:05:27 PM Moonset: 08:32 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Sunny |
-15.9 ° C (3.3°F) |
-4.5 ° C (24°F) |
-11.8 ° C (10.7°F) |
% 79 | 0% | 2 | Sunrise:07:54 AM Sunset: 05:07 PM |
Moonrise:06:47 PM Moonset: 09:15 AM Moon Phase ( Waning Gibbous ) |
|
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