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
| 05 December 2025 Friday 1.1 ° C / 34°F  Overcast |
Feels Like : 0.4 ° C / 32.7°F Humidity : % 85 Pressure : 1019 mb Wind Speed : 3.6 kmph / 2.2 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday |  Moderate or heavy snow showers |
-5.6 ° C (21.9°F) |
0.5 ° C (32.9°F) |
-2.2 ° C (28°F) |
% 91 | 81% | 0.3 | Sunrise:07:39 AM Sunset: 04:54 PM |
Moonrise:05:26 PM Moonset: 08:52 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Moderate or heavy snow showers |
-4.2 ° C (24.5°F) |
-0.2 ° C (31.6°F) |
-1.3 ° C (29.6°F) |
% 91 | 63% | 0.4 | Sunrise:07:40 AM Sunset: 04:53 PM |
Moonrise:06:39 PM Moonset: 09:56 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Moderate snow |
-4.9 ° C (23.2°F) |
-1.5 ° C (29.3°F) |
-3.1 ° C (26.5°F) |
% 90 | 79% | 0.4 | Sunrise:07:41 AM Sunset: 04:53 PM |
Moonrise:07:57 PM Moonset: 10:45 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday |  Light snow showers |
-8.8 ° C (16.2°F) |
1 ° C (33.7°F) |
-2.3 ° C (27.9°F) |
% 87 | 72% | 0.4 | Sunrise:07:42 AM Sunset: 04:53 PM |
Moonrise:09:15 PM Moonset: 11:23 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday | Moderate snow |
-9.6 ° C (14.6°F) |
1.9 ° C (35.4°F) |
-2 ° C (28.3°F) |
% 92 | 59% | 0 | Sunrise:07:42 AM Sunset: 04:53 PM |
Moonrise:10:27 PM Moonset: 11:51 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Patchy rain nearby |
-5 ° C (23.1°F) |
4.5 ° C (40.1°F) |
1 ° C (33.9°F) |
% 86 | 65% | 1 | Sunrise:07:43 AM Sunset: 04:53 PM |
Moonrise:11:36 PM Moonset: 12:15 PM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday |  Light freezing rain |
-8.6 ° C (16.5°F) |
-1 ° C (30.2°F) |
-4.9 ° C (23.2°F) |
% 80 | 86% | 1 | Sunrise:07:44 AM Sunset: 04:54 PM |
Moonrise:No moonrise Moonset: 12:35 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday |  Light sleet |
-3 ° C (26.7°F) |
2.4 ° C (36.3°F) |
-0.4 ° C (31.3°F) |
% 91 | 72% | 1 | Sunrise:07:45 AM Sunset: 04:54 PM |
Moonrise:12:41 AM Moonset: 12:54 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday |  Sunny |
-5.9 ° C (21.4°F) |
0.1 ° C (32.2°F) |
-2.9 ° C (26.7°F) |
% 82 | 0% | 2 | Sunrise:07:46 AM Sunset: 04:54 PM |
Moonrise:01:44 AM Moonset: 01:13 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Moderate or heavy snow showers |
-5.8 ° C (21.6°F) |
3.2 ° C (37.7°F) |
-1.2 ° C (29.9°F) |
% 85 | 67% | 1 | Sunrise:07:46 AM Sunset: 04:54 PM |
Moonrise:02:46 AM Moonset: 01:33 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday | Light freezing rain |
-11.4 ° C (11.4°F) |
-2.6 ° C (27.3°F) |
-6.4 ° C (20.6°F) |
% 85 | 61% | 1 | Sunrise:07:47 AM Sunset: 04:54 PM |
Moonrise:03:49 AM Moonset: 01:55 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Moderate or heavy snow showers |
-8.2 ° C (17.2°F) |
0.2 ° C (32.4°F) |
-4.3 ° C (24.3°F) |
% 94 | 72% | 1 | Sunrise:07:48 AM Sunset: 04:55 PM |
Moonrise:04:53 AM Moonset: 02:21 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Heavy snow |
-16.5 ° C (2.3°F) |
-9 ° C (15.8°F) |
-12.4 ° C (9.7°F) |
% 91 | 78% | 1 | Sunrise:07:48 AM Sunset: 04:55 PM |
Moonrise:05:57 AM Moonset: 02:53 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Light snow showers |
-15.6 ° C (3.9°F) |
-4.5 ° C (24°F) |
-9.7 ° C (14.5°F) |
% 83 | 65% | 1 | Sunrise:07:49 AM Sunset: 04:55 PM |
Moonrise:06:59 AM Moonset: 03:33 PM Moon Phase ( Waning Crescent ) |
|
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