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
| 22 June 2026 Monday 24.7 ° C / 76.5°F  Sunny |
Feels Like : 26 ° C / 78.8°F Humidity : % 46 Pressure : 1017 mb Wind Speed : 13.3 kmph / 8.3 miles from NNE  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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 22 June 2026 Monday |  Partly Cloudy |
14.5 ° C (58.1°F) |
24.2 ° C (75.6°F) |
18.6 ° C (65.5°F) |
% 79 | 17% | 7.9 | Sunrise:05:21 AM Sunset: 08:31 PM |
Moonrise:01:53 PM Moonset: 12:47 AM Moon Phase ( First Quarter ) |
|
| 23 June 2026 Tuesday | Sunny |
11.5 ° C (52.8°F) |
24.2 ° C (75.6°F) |
18 ° C (64.4°F) |
% 67 | 6% | 8.9 | Sunrise:05:21 AM Sunset: 08:31 PM |
Moonrise:03:02 PM Moonset: 01:10 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 June 2026 Wednesday |  Patchy rain nearby |
13.9 ° C (57°F) |
24.5 ° C (76°F) |
19.4 ° C (67°F) |
% 82 | 72% | 6.9 | Sunrise:05:22 AM Sunset: 08:31 PM |
Moonrise:04:10 PM Moonset: 01:34 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 June 2026 Thursday | Sunny |
16.4 ° C (61.5°F) |
23.9 ° C (75°F) |
19.9 ° C (67.9°F) |
% 80 | 11% | 8 | Sunrise:05:22 AM Sunset: 08:31 PM |
Moonrise:05:18 PM Moonset: 02:01 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 June 2026 Friday | Sunny |
14.1 ° C (57.5°F) |
25.2 ° C (77.3°F) |
19.6 ° C (67.3°F) |
% 77 | 8% | 0.5 | Sunrise:05:22 AM Sunset: 08:31 PM |
Moonrise:06:24 PM Moonset: 02:34 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 June 2026 Saturday | Patchy rain nearby |
14.6 ° C (58.3°F) |
25.8 ° C (78.5°F) |
20.1 ° C (68.2°F) |
% 83 | 30% | 5 | Sunrise:05:23 AM Sunset: 08:31 PM |
Moonrise:07:25 PM Moonset: 03:13 AM Moon Phase ( Full Moon ) |
|
| 28 June 2026 Sunday | Sunny |
20.7 ° C (69.2°F) |
31.3 ° C (88.4°F) |
26.1 ° C (78.9°F) |
% 84 | 13% | 7 | Sunrise:05:23 AM Sunset: 08:31 PM |
Moonrise:08:19 PM Moonset: 04:00 AM Moon Phase ( Full Moon ) |
|
| 29 June 2026 Monday | Sunny |
22 ° C (71.7°F) |
31.9 ° C (89.3°F) |
27.1 ° C (80.9°F) |
% 82 | 10% | 7 | Sunrise:05:24 AM Sunset: 08:31 PM |
Moonrise:09:04 PM Moonset: 04:55 AM Moon Phase ( Full Moon ) |
|
| 30 June 2026 Tuesday |  Cloudy |
22.3 ° C (72.2°F) |
28.3 ° C (82.9°F) |
25.4 ° C (77.7°F) |
% 79 | 18% | 6 | Sunrise:05:24 AM Sunset: 08:31 PM |
Moonrise:09:41 PM Moonset: 05:54 AM Moon Phase ( Full Moon ) |
|
| 01 July 2026 Wednesday | Partly Cloudy |
21.6 ° C (71°F) |
31.4 ° C (88.6°F) |
26.4 ° C (79.6°F) |
% 85 | 19% | 7 | Sunrise:05:25 AM Sunset: 08:31 PM |
Moonrise:10:11 PM Moonset: 06:57 AM Moon Phase ( Waning Gibbous ) |
|
| 02 July 2026 Thursday | Patchy rain nearby |
19.2 ° C (66.6°F) |
26.5 ° C (79.7°F) |
24 ° C (75.3°F) |
% 84 | 45% | 5 | Sunrise:05:25 AM Sunset: 08:31 PM |
Moonrise:10:36 PM Moonset: 08:00 AM Moon Phase ( Waning Gibbous ) |
|
| 03 July 2026 Friday | Patchy rain nearby |
18.8 ° C (65.8°F) |
27.9 ° C (82.3°F) |
22.7 ° C (72.9°F) |
% 81 | 71% | 5 | Sunrise:05:26 AM Sunset: 08:31 PM |
Moonrise:10:58 PM Moonset: 09:03 AM Moon Phase ( Waning Gibbous ) |
|
| 04 July 2026 Saturday | Patchy rain nearby |
14.8 ° C (58.6°F) |
24.2 ° C (75.5°F) |
19.4 ° C (66.9°F) |
% 76 | 23% | 4 | Sunrise:05:26 AM Sunset: 08:31 PM |
Moonrise:11:18 PM Moonset: 10:04 AM Moon Phase ( Waning Gibbous ) |
|
| 05 July 2026 Sunday | Sunny |
13.2 ° C (55.8°F) |
22.8 ° C (73°F) |
17.7 ° C (63.9°F) |
% 75 | 8% | 5 | Sunrise:05:27 AM Sunset: 08:30 PM |
Moonrise:11:37 PM Moonset: 11:05 AM Moon Phase ( Last Quarter ) |
|
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