Mason City Weather Forecast 15 Days, Weather in Mason City Today
Current weather conditions and 15 day weather forecast for Mason City, Illinois, 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 Mason City
| 28 December 2025 Sunday 13.3 ° C / 55.9°F  Mist |
Feels Like : 11.6 ° C / 52.8°F Humidity : % 94 Pressure : 1008 mb Wind Speed : 19.8 kmph / 12.3 miles from SSE  Visibility : 2.8 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Mason City, IL, USA
Weather Forecast for next 15 Days for Mason City 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 Mason City, Illinois 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 27 December 2025 Saturday |  Overcast |
6.2 ° C (43.2°F) |
10.1 ° C (50.2°F) |
8.1 ° C (46.7°F) |
% 98 | 0% | 0.3 | Sunrise:07:21 AM Sunset: 04:40 PM |
Moonrise:11:37 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Moderate rain |
-2.8 ° C (27°F) |
16.9 ° C (62.4°F) |
10.7 ° C (51.2°F) |
% 91 | 87% | 0.2 | Sunrise:07:21 AM Sunset: 04:41 PM |
Moonrise:12:00 PM Moonset: 12:39 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Partly Cloudy |
-8 ° C (17.6°F) |
-3.6 ° C (25.5°F) |
-5.6 ° C (21.9°F) |
% 50 | 0% | 0.3 | Sunrise:07:21 AM Sunset: 04:41 PM |
Moonrise:12:28 PM Moonset: 01:52 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Sunny |
-9.9 ° C (14.2°F) |
-1.7 ° C (28.9°F) |
-6.1 ° C (21°F) |
% 49 | 0% | 0.3 | Sunrise:07:21 AM Sunset: 04:42 PM |
Moonrise:01:02 PM Moonset: 03:09 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-3.5 ° C (25.7°F) |
2.4 ° C (36.3°F) |
-1.3 ° C (29.7°F) |
% 65 | 0% | 0.3 | Sunrise:07:21 AM Sunset: 04:43 PM |
Moonrise:01:45 PM Moonset: 04:28 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Overcast |
-7.7 ° C (18.2°F) |
-2.5 ° C (27.6°F) |
-3.6 ° C (25.5°F) |
% 64 | 0% | 0 | Sunrise:07:22 AM Sunset: 04:44 PM |
Moonrise:02:40 PM Moonset: 05:46 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Partly Cloudy |
-10.4 ° C (13.3°F) |
-4 ° C (24.8°F) |
-7.4 ° C (18.7°F) |
% 29 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:45 PM |
Moonrise:03:48 PM Moonset: 06:56 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday |  Light freezing rain |
-4.5 ° C (24°F) |
0.8 ° C (33.4°F) |
-0.7 ° C (30.8°F) |
% 67 | 71% | 1 | Sunrise:07:22 AM Sunset: 04:45 PM |
Moonrise:05:03 PM Moonset: 07:55 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Partly Cloudy |
-2.9 ° C (26.8°F) |
2.4 ° C (36.3°F) |
-0.3 ° C (31.5°F) |
% 71 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:46 PM |
Moonrise:06:21 PM Moonset: 08:40 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Sunny |
-4.2 ° C (24.5°F) |
1.2 ° C (34.1°F) |
-2.2 ° C (28.1°F) |
% 58 | 0% | 2 | Sunrise:07:22 AM Sunset: 04:47 PM |
Moonrise:07:38 PM Moonset: 09:16 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday |  Cloudy |
-0.8 ° C (30.6°F) |
6.7 ° C (44°F) |
3.7 ° C (38.7°F) |
% 56 | 0% | 1 | Sunrise:07:22 AM Sunset: 04:48 PM |
Moonrise:08:49 PM Moonset: 09:44 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday |  Patchy rain nearby |
7.6 ° C (45.8°F) |
11.9 ° C (53.4°F) |
10.2 ° C (50.4°F) |
% 86 | 81% | 3 | Sunrise:07:22 AM Sunset: 04:49 PM |
Moonrise:09:56 PM Moonset: 10:08 AM Moon Phase ( Waning Gibbous ) |
|
| 08 January 2026 Thursday | Patchy rain nearby |
2.2 ° C (35.9°F) |
10.5 ° C (50.9°F) |
8.7 ° C (47.6°F) |
% 71 | 80% | 2 | Sunrise:07:21 AM Sunset: 04:50 PM |
Moonrise:11:00 PM Moonset: 10:29 AM Moon Phase ( Waning Gibbous ) |
|
| 09 January 2026 Friday | Sunny |
-4.3 ° C (24.3°F) |
-0.3 ° C (31.4°F) |
-2 ° C (28.4°F) |
% 55 | 0% | 2 | Sunrise:07:21 AM Sunset: 04:51 PM |
Moonrise:No moonrise Moonset: 10:50 AM Moon Phase ( Waning Gibbous ) |
|
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