Seneca Weather Forecast 15 Days, Weather in Seneca Today
Current weather conditions and 15 day weather forecast for Seneca, 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 Seneca
| 07 February 2026 Saturday -7.2 ° C / 19°F  Clear |
Feels Like : -14.1 ° C / 6.6°F Humidity : % 59 Pressure : 1023 mb Wind Speed : 18.7 kmph / 11.6 miles from N  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Seneca, IL, USA
Weather Forecast for next 15 Days for Seneca 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 Seneca, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 06 February 2026 Friday |  Moderate or heavy snow showers |
-6.7 ° C (19.9°F) |
3.8 ° C (38.8°F) |
-0.2 ° C (31.6°F) |
% 81 | 85% | 0.4 | Sunrise:07:02 AM Sunset: 05:16 PM |
Moonrise:10:49 PM Moonset: 09:06 AM Moon Phase ( Waning Gibbous ) |
|
| 07 February 2026 Saturday | Sunny |
-12.9 ° C (8.8°F) |
-4.1 ° C (24.6°F) |
-8.1 ° C (17.4°F) |
% 59 | 0% | 0.5 | Sunrise:07:01 AM Sunset: 05:17 PM |
Moonrise:11:54 PM Moonset: 09:27 AM Moon Phase ( Waning Gibbous ) |
|
| 08 February 2026 Sunday |  Overcast |
-7.2 ° C (19°F) |
-2.3 ° C (27.9°F) |
-4.8 ° C (23.3°F) |
% 80 | 0% | 0.4 | Sunrise:07:00 AM Sunset: 05:18 PM |
Moonrise:No moonrise Moonset: 09:50 AM Moon Phase ( Waning Gibbous ) |
|
| 09 February 2026 Monday | Overcast |
-4.1 ° C (24.6°F) |
3.1 ° C (37.6°F) |
-1.5 ° C (29.4°F) |
% 88 | 0% | 0.5 | Sunrise:06:58 AM Sunset: 05:20 PM |
Moonrise:12:59 AM Moonset: 10:17 AM Moon Phase ( Last Quarter ) |
|
| 10 February 2026 Tuesday |  Partly Cloudy |
-0.6 ° C (30.9°F) |
6.3 ° C (43.3°F) |
2.9 ° C (37.2°F) |
% 84 | 0% | 0.5 | Sunrise:06:57 AM Sunset: 05:21 PM |
Moonrise:02:03 AM Moonset: 10:51 AM Moon Phase ( Waning Crescent ) |
|
| 11 February 2026 Wednesday | Overcast |
-1.4 ° C (29.6°F) |
2.4 ° C (36.3°F) |
-0.3 ° C (31.5°F) |
% 72 | 0% | 0 | Sunrise:06:56 AM Sunset: 05:22 PM |
Moonrise:03:05 AM Moonset: 11:32 AM Moon Phase ( Waning Crescent ) |
|
| 12 February 2026 Thursday | Partly Cloudy |
-2.1 ° C (28.2°F) |
2.5 ° C (36.6°F) |
-0.1 ° C (31.8°F) |
% 71 | 0% | 2 | Sunrise:06:54 AM Sunset: 05:23 PM |
Moonrise:04:01 AM Moonset: 12:21 PM Moon Phase ( Waning Crescent ) |
|
| 13 February 2026 Friday |  Moderate snow |
-1.6 ° C (29.2°F) |
1.1 ° C (34°F) |
-0.6 ° C (30.9°F) |
% 90 | 87% | 1 | Sunrise:06:53 AM Sunset: 05:25 PM |
Moonrise:04:50 AM Moonset: 01:20 PM Moon Phase ( Waning Crescent ) |
|
| 14 February 2026 Saturday | Partly Cloudy |
-3.5 ° C (25.7°F) |
1.6 ° C (34.9°F) |
-1.1 ° C (30°F) |
% 86 | 0% | 2 | Sunrise:06:52 AM Sunset: 05:26 PM |
Moonrise:05:32 AM Moonset: 02:25 PM Moon Phase ( Waning Crescent ) |
|
| 15 February 2026 Sunday |  Light freezing rain |
-2.8 ° C (27°F) |
1.8 ° C (35.2°F) |
-0.5 ° C (31°F) |
% 85 | 63% | 1 | Sunrise:06:50 AM Sunset: 05:27 PM |
Moonrise:06:06 AM Moonset: 03:34 PM Moon Phase ( Waning Crescent ) |
|
| 16 February 2026 Monday | Overcast |
-0.7 ° C (30.7°F) |
5 ° C (41.1°F) |
2 ° C (35.6°F) |
% 85 | 0% | 1 | Sunrise:06:49 AM Sunset: 05:29 PM |
Moonrise:06:34 AM Moonset: 04:44 PM Moon Phase ( Waning Crescent ) |
|
| 17 February 2026 Tuesday |  Patchy rain nearby |
3.7 ° C (38.7°F) |
11.7 ° C (53.1°F) |
8.9 ° C (47.9°F) |
% 86 | 87% | 2 | Sunrise:06:48 AM Sunset: 05:30 PM |
Moonrise:06:59 AM Moonset: 05:55 PM Moon Phase ( New Moon ) |
|
| 18 February 2026 Wednesday | Sunny |
0.2 ° C (32.4°F) |
6 ° C (42.8°F) |
3 ° C (37.4°F) |
% 67 | 0% | 2 | Sunrise:06:46 AM Sunset: 05:31 PM |
Moonrise:07:21 AM Moonset: 07:06 PM Moon Phase ( Waxing Crescent ) |
|
| 19 February 2026 Thursday | Patchy rain nearby |
0.5 ° C (33°F) |
3 ° C (37.4°F) |
1.5 ° C (34.7°F) |
% 83 | 84% | 1 | Sunrise:06:45 AM Sunset: 05:32 PM |
Moonrise:07:42 AM Moonset: 08:17 PM Moon Phase ( Waxing Crescent ) |
|
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