Lerna Weather Forecast 15 Days, Weather in Lerna Today
Current weather conditions and 15 day weather forecast for Lerna, 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 Lerna
| 05 December 2025 Friday -14.7 ° C / 5.5°F  Overcast |
Feels Like : -19.6 ° C / -3.3°F Humidity : % 91 Pressure : 1020 mb Wind Speed : 7.2 kmph / 4.5 miles from SSE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Lerna, IL, USA
Weather Forecast for next 15 Days for Lerna 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 Lerna, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday |  Cloudy |
-16.5 ° C (2.3°F) |
-0.8 ° C (30.6°F) |
-7.1 ° C (19.2°F) |
% 84 | 0% | 0.5 | Sunrise:06:58 AM Sunset: 04:29 PM |
Moonrise:05:00 PM Moonset: 08:04 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Overcast |
-1.9 ° C (28.6°F) |
0.8 ° C (33.4°F) |
-0.4 ° C (31.3°F) |
% 95 | 0% | 0.4 | Sunrise:06:59 AM Sunset: 04:29 PM |
Moonrise:06:12 PM Moonset: 09:09 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Freezing fog |
-8.5 ° C (16.8°F) |
1.3 ° C (34.3°F) |
-1 ° C (30.2°F) |
% 95 | 64% | 0.3 | Sunrise:07:00 AM Sunset: 04:29 PM |
Moonrise:07:29 PM Moonset: 10:01 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday |  Sunny |
-11.2 ° C (11.8°F) |
-3.2 ° C (26.2°F) |
-7.7 ° C (18.1°F) |
% 84 | 0% | 0.4 | Sunrise:07:01 AM Sunset: 04:29 PM |
Moonrise:08:44 PM Moonset: 10:41 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Partly Cloudy |
-7.6 ° C (18.4°F) |
4.1 ° C (39.4°F) |
-2.4 ° C (27.6°F) |
% 86 | 0% | 0 | Sunrise:07:02 AM Sunset: 04:29 PM |
Moonrise:09:55 PM Moonset: 11:12 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Patchy rain nearby |
3.1 ° C (37.6°F) |
10.1 ° C (50.1°F) |
6.2 ° C (43.2°F) |
% 80 | 88% | 2 | Sunrise:07:03 AM Sunset: 04:29 PM |
Moonrise:11:02 PM Moonset: 11:38 AM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday |  Light freezing rain |
-2.2 ° C (28°F) |
2.7 ° C (36.8°F) |
0.7 ° C (33.2°F) |
% 75 | 77% | 1 | Sunrise:07:04 AM Sunset: 04:29 PM |
Moonrise:No moonrise Moonset: 12:00 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Sunny |
-4.6 ° C (23.7°F) |
0.7 ° C (33.3°F) |
-2.5 ° C (27.6°F) |
% 61 | 0% | 2 | Sunrise:07:04 AM Sunset: 04:29 PM |
Moonrise:12:05 AM Moonset: 12:21 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday | Partly Cloudy |
-4.5 ° C (23.8°F) |
1.5 ° C (34.7°F) |
-2.4 ° C (27.7°F) |
% 57 | 0% | 2 | Sunrise:07:05 AM Sunset: 04:30 PM |
Moonrise:01:06 AM Moonset: 12:42 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Sunny |
-3.2 ° C (26.3°F) |
6.9 ° C (44.4°F) |
1.5 ° C (34.7°F) |
% 58 | 0% | 2 | Sunrise:07:06 AM Sunset: 04:30 PM |
Moonrise:02:06 AM Moonset: 01:03 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday | Patchy rain nearby |
5.3 ° C (41.6°F) |
12.9 ° C (55.3°F) |
10.5 ° C (50.9°F) |
% 93 | 88% | 3 | Sunrise:07:07 AM Sunset: 04:30 PM |
Moonrise:03:07 AM Moonset: 01:28 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Patchy rain nearby |
11.3 ° C (52.3°F) |
15.3 ° C (59.6°F) |
13.1 ° C (55.6°F) |
% 90 | 84% | 3 | Sunrise:07:07 AM Sunset: 04:30 PM |
Moonrise:04:09 AM Moonset: 01:55 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Moderate rain |
13.7 ° C (56.7°F) |
17.8 ° C (64.1°F) |
15.8 ° C (60.5°F) |
% 96 | 89% | 4 | Sunrise:07:08 AM Sunset: 04:31 PM |
Moonrise:05:11 AM Moonset: 02:28 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Patchy rain nearby |
1.1 ° C (33.9°F) |
7.1 ° C (44.7°F) |
6.6 ° C (44°F) |
% 75 | 87% | 2 | Sunrise:07:09 AM Sunset: 04:31 PM |
Moonrise:06:12 AM Moonset: 03:09 PM Moon Phase ( Waning Crescent ) |
|
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