Current weather conditions and 15 day weather forecast for Mount Vernon, 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.
| 19 December 2025 Friday -14.4 ° C / 6.1°F ![]() Overcast |
Feels Like : -25.6 ° C / -14.1°F Humidity : % 75 Pressure : 1011 mb Wind Speed : 32.4 kmph / 20.1 miles from NW ![]() Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 19 December 2025 Friday | Partly Cloudy |
-15.1 ° C (4.8°F) |
-7 ° C (19.4°F) |
-10.6 ° C (12.9°F) |
% 75 | 0% | 0.3 | Sunrise:07:31 AM Sunset: 04:37 PM |
Moonrise:07:35 AM Moonset: 03:59 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Overcast |
-5.8 ° C (21.7°F) |
-0.3 ° C (31.5°F) |
-3 ° C (26.6°F) |
% 90 | 0% | 0.2 | Sunrise:07:31 AM Sunset: 04:38 PM |
Moonrise:08:26 AM Moonset: 04:55 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
-6.6 ° C (20.1°F) |
-0.5 ° C (31.1°F) |
-4.2 ° C (24.4°F) |
% 81 | 0% | 0.3 | Sunrise:07:32 AM Sunset: 04:38 PM |
Moonrise:09:09 AM Moonset: 05:58 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Patchy moderate snow |
-2.9 ° C (26.8°F) |
2.7 ° C (36.9°F) |
-0.2 ° C (31.6°F) |
% 57 | 78% | 0.1 | Sunrise:07:32 AM Sunset: 04:39 PM |
Moonrise:09:45 AM Moonset: 07:05 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Mist |
-1.6 ° C (29.2°F) |
6.6 ° C (43.9°F) |
1.3 ° C (34.3°F) |
% 92 | 0% | 0 | Sunrise:07:33 AM Sunset: 04:39 PM |
Moonrise:10:14 AM Moonset: 08:12 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Fog |
0.9 ° C (33.6°F) |
5.4 ° C (41.8°F) |
3.7 ° C (38.6°F) |
% 99 | 0% | 1 | Sunrise:07:33 AM Sunset: 04:40 PM |
Moonrise:10:39 AM Moonset: 09:21 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Fog |
5.8 ° C (42.4°F) |
8.2 ° C (46.7°F) |
6.7 ° C (44°F) |
% 99 | 0% | 2 | Sunrise:07:33 AM Sunset: 04:40 PM |
Moonrise:11:02 AM Moonset: 10:28 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Overcast |
-1.8 ° C (28.8°F) |
1.4 ° C (34.6°F) |
1.2 ° C (34.1°F) |
% 75 | 0% | 1 | Sunrise:07:34 AM Sunset: 04:41 PM |
Moonrise:11:23 AM Moonset: 11:38 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Light freezing rain |
-3.2 ° C (26.3°F) |
1 ° C (33.7°F) |
-1.6 ° C (29.2°F) |
% 75 | 60% | 1 | Sunrise:07:34 AM Sunset: 04:42 PM |
Moonrise:11:44 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Moderate rain |
-1.3 ° C (29.7°F) |
2.1 ° C (35.7°F) |
1.7 ° C (35°F) |
% 88 | 83% | 1 | Sunrise:07:34 AM Sunset: 04:43 PM |
Moonrise:12:06 PM Moonset: 12:49 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Patchy rain nearby |
-0.6 ° C (30.9°F) |
5.5 ° C (41.9°F) |
4.8 ° C (40.7°F) |
% 84 | 75% | 1 | Sunrise:07:35 AM Sunset: 04:43 PM |
Moonrise:12:32 PM Moonset: 02:03 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
-1.4 ° C (29.4°F) |
5.9 ° C (42.7°F) |
1.6 ° C (34.8°F) |
% 74 | 0% | 2 | Sunrise:07:35 AM Sunset: 04:44 PM |
Moonrise:01:04 PM Moonset: 03:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Partly Cloudy |
-7.8 ° C (18°F) |
-4.3 ° C (24.3°F) |
-4.8 ° C (23.3°F) |
% 65 | 0% | 2 | Sunrise:07:35 AM Sunset: 04:45 PM |
Moonrise:01:46 PM Moonset: 04:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Overcast |
-9.3 ° C (15.3°F) |
-6.4 ° C (20.5°F) |
-8.3 ° C (17.1°F) |
% 63 | 0% | 1 | Sunrise:07:35 AM Sunset: 04:46 PM |
Moonrise:02:40 PM Moonset: 06:02 AM Moon Phase ( Waxing Gibbous ) |
|