St. Charles Weather Forecast 15 Days, Weather in St. Charles Today
Current weather conditions and 15 day weather forecast for St. Charles, Iowa, 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 -6.5 ° C / 20.3°F  Clear |
Feels Like : -13.8 ° C / 7.2°F Humidity : % 73 Pressure : 1014 mb Wind Speed : 22 kmph / 13.6 miles from SSW  Visibility : 11 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for St. Charles, IA, 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, Iowa 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 |  Partly Cloudy |
-10.9 ° C (12.4°F) |
1.3 ° C (34.3°F) |
-3.9 ° C (25°F) |
% 81 | 0% | 0.4 | Sunrise:07:26 AM Sunset: 04:46 PM |
Moonrise:05:15 PM Moonset: 08:35 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday |  Moderate or heavy snow showers |
-2.5 ° C (27.5°F) |
-1.4 ° C (29.5°F) |
-1.4 ° C (29.5°F) |
% 94 | 80% | 0.3 | Sunrise:07:27 AM Sunset: 04:45 PM |
Moonrise:06:28 PM Moonset: 09:40 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday | Moderate or heavy snow showers |
-20.8 ° C (-5.4°F) |
-4.2 ° C (24.5°F) |
-7.7 ° C (18.1°F) |
% 89 | 75% | 0.4 | Sunrise:07:28 AM Sunset: 04:45 PM |
Moonrise:07:46 PM Moonset: 10:30 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday | Partly Cloudy |
-22.6 ° C (-8.7°F) |
-3.2 ° C (26.2°F) |
-12 ° C (10.4°F) |
% 91 | 0% | 0.4 | Sunrise:07:29 AM Sunset: 04:45 PM |
Moonrise:09:03 PM Moonset: 11:09 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday | Partly Cloudy |
-5 ° C (22.9°F) |
2.4 ° C (36.3°F) |
-1.1 ° C (29.9°F) |
% 87 | 0% | 0 | Sunrise:07:30 AM Sunset: 04:45 PM |
Moonrise:10:15 PM Moonset: 11:39 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Moderate snow |
-7.8 ° C (18°F) |
2.2 ° C (36°F) |
-2.1 ° C (28.2°F) |
% 84 | 72% | 1 | Sunrise:07:31 AM Sunset: 04:46 PM |
Moonrise:11:23 PM Moonset: 12:03 PM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday |  Heavy snow |
-8 ° C (17.5°F) |
-3.1 ° C (26.5°F) |
-5.5 ° C (22°F) |
% 88 | 86% | 1 | Sunrise:07:32 AM Sunset: 04:46 PM |
Moonrise:No moonrise Moonset: 12:23 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Partly Cloudy |
-12.4 ° C (9.6°F) |
-7 ° C (19.4°F) |
-9.8 ° C (14.4°F) |
% 92 | 0% | 2 | Sunrise:07:32 AM Sunset: 04:46 PM |
Moonrise:12:28 AM Moonset: 12:43 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday | Sunny |
-11.4 ° C (11.4°F) |
3.7 ° C (38.7°F) |
-2.7 ° C (27.1°F) |
% 83 | 0% | 2 | Sunrise:07:33 AM Sunset: 04:46 PM |
Moonrise:01:31 AM Moonset: 01:02 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Sunny |
-8.7 ° C (16.4°F) |
0.9 ° C (33.6°F) |
-2.5 ° C (27.5°F) |
% 77 | 0% | 2 | Sunrise:07:34 AM Sunset: 04:46 PM |
Moonrise:02:32 AM Moonset: 01:23 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday | Partly Cloudy |
-9.9 ° C (14.2°F) |
-3.1 ° C (26.4°F) |
-6.6 ° C (20.2°F) |
% 71 | 0% | 2 | Sunrise:07:35 AM Sunset: 04:47 PM |
Moonrise:03:35 AM Moonset: 01:45 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Light freezing rain |
-2.5 ° C (27.5°F) |
2.4 ° C (36.3°F) |
-0.3 ° C (31.5°F) |
% 86 | 67% | 1 | Sunrise:07:35 AM Sunset: 04:47 PM |
Moonrise:04:37 AM Moonset: 02:12 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Light freezing rain |
-1.8 ° C (28.7°F) |
-0.9 ° C (30.4°F) |
-1.1 ° C (30°F) |
% 93 | 82% | 1 | Sunrise:07:36 AM Sunset: 04:47 PM |
Moonrise:05:41 AM Moonset: 02:44 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Overcast |
-1.6 ° C (29.2°F) |
3.7 ° C (38.6°F) |
0.4 ° C (32.7°F) |
% 92 | 0% | 1 | Sunrise:07:37 AM Sunset: 04:48 PM |
Moonrise:06:42 AM Moonset: 03:24 PM Moon Phase ( Waning Crescent ) |
|
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