Seymour Weather Forecast 15 Days, Weather in Seymour Today

Current weather conditions and 15 day weather forecast for Seymour, 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 Seymour

20 December 2025 Saturday
3.3 ° C / 37.9°F
Overcast
Overcast
Feels Like : -1.1 ° C / 30.1°F
Humidity : % 76
Pressure : 1016 mb
Wind Speed : 19.8 kmph / 12.3 miles from WW
Visibility : 16 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 100

15 day weather forecast for Seymour, IL, USA

Weather Forecast for next 15 Days for Seymour 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 Seymour, 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
20 December 2025 Saturday Sunny Sunny -4.5 ° C
(23.9°F)
10.7 ° C
(51.3°F)
1.1 ° C
(34°F)
% 79 0% 0.3 Sunrise:07:11 AM
Sunset: 04:30 PM
Moonrise:08:03 AM
Moonset: 04:49 PM
Moon Phase
( New Moon )
21 December 2025 Sunday Partly Cloudy  Partly Cloudy -5 ° C
(23°F)
-0.4 ° C
(31.3°F)
-3 ° C
(26.5°F)
% 71 0% 0.3 Sunrise:07:12 AM
Sunset: 04:30 PM
Moonrise:08:47 AM
Moonset: 05:51 PM
Moon Phase
( Waxing Crescent )
22 December 2025 Monday Overcast  Overcast -4.4 ° C
(24.1°F)
5.7 ° C
(42.3°F)
0.3 ° C
(32.6°F)
% 67 0% 0.1 Sunrise:07:12 AM
Sunset: 04:31 PM
Moonrise:09:25 AM
Moonset: 06:56 PM
Moon Phase
( Waxing Crescent )
23 December 2025 Tuesday Fog Fog 2.4 ° C
(36.4°F)
9.1 ° C
(48.3°F)
5.4 ° C
(41.7°F)
% 94 0% 0.4 Sunrise:07:13 AM
Sunset: 04:31 PM
Moonrise:09:56 AM
Moonset: 08:03 PM
Moon Phase
( Waxing Crescent )
24 December 2025 Wednesday Cloudy  Cloudy 3.1 ° C
(37.6°F)
10.6 ° C
(51°F)
6 ° C
(42.9°F)
% 90 0% 0 Sunrise:07:13 AM
Sunset: 04:32 PM
Moonrise:10:22 AM
Moonset: 09:09 PM
Moon Phase
( Waxing Crescent )
25 December 2025 Thursday Patchy rain nearby Patchy rain nearby 14.6 ° C
(58.2°F)
17.2 ° C
(63°F)
16.4 ° C
(61.5°F)
% 87 88% 4 Sunrise:07:14 AM
Sunset: 04:33 PM
Moonrise:10:46 AM
Moonset: 10:15 PM
Moon Phase
( Waxing Crescent )
26 December 2025 Friday Partly Cloudy  Partly Cloudy 9.1 ° C
(48.3°F)
13.6 ° C
(56.5°F)
11.7 ° C
(53.1°F)
% 63 0% 4 Sunrise:07:14 AM
Sunset: 04:33 PM
Moonrise:11:08 AM
Moonset: 11:23 PM
Moon Phase
( Waxing Crescent )
27 December 2025 Saturday Cloudy  Cloudy 9.3 ° C
(48.7°F)
14 ° C
(57.2°F)
11.1 ° C
(51.9°F)
% 77 0% 3 Sunrise:07:14 AM
Sunset: 04:34 PM
Moonrise:11:31 AM
Moonset: No moonset
Moon Phase
( First Quarter )
28 December 2025 Sunday Partly Cloudy  Partly Cloudy 6 ° C
(42.8°F)
9.7 ° C
(49.4°F)
7.9 ° C
(46.2°F)
% 69 0% 3 Sunrise:07:15 AM
Sunset: 04:35 PM
Moonrise:11:55 AM
Moonset: 12:32 AM
Moon Phase
( Waxing Gibbous )
29 December 2025 Monday Partly Cloudy  Partly Cloudy 0.5 ° C
(32.8°F)
4.4 ° C
(40°F)
3.3 ° C
(37.9°F)
% 72 0% 2 Sunrise:07:15 AM
Sunset: 04:36 PM
Moonrise:12:22 PM
Moonset: 01:45 AM
Moon Phase
( Waxing Gibbous )
30 December 2025 Tuesday Partly Cloudy  Partly Cloudy -2.3 ° C
(27.9°F)
3.4 ° C
(38.2°F)
0.3 ° C
(32.6°F)
% 64 0% 2 Sunrise:07:15 AM
Sunset: 04:36 PM
Moonrise:12:56 PM
Moonset: 03:02 AM
Moon Phase
( Waxing Gibbous )
31 December 2025 Wednesday Sunny Sunny -1.3 ° C
(29.7°F)
6.4 ° C
(43.5°F)
1.7 ° C
(35.1°F)
% 72 0% 2 Sunrise:07:15 AM
Sunset: 04:37 PM
Moonrise:01:39 PM
Moonset: 04:21 AM
Moon Phase
( Waxing Gibbous )
01 January 2026 Thursday Sunny Sunny 0.3 ° C
(32.6°F)
10.2 ° C
(50.3°F)
4.6 ° C
(40.3°F)
% 71 0% 2 Sunrise:07:15 AM
Sunset: 04:38 PM
Moonrise:02:34 PM
Moonset: 05:40 AM
Moon Phase
( Waxing Gibbous )
02 January 2026 Friday Partly Cloudy  Partly Cloudy 4.2 ° C
(39.6°F)
10.4 ° C
(50.8°F)
7.7 ° C
(45.8°F)
% 82 0% 3 Sunrise:07:15 AM
Sunset: 04:39 PM
Moonrise:03:42 PM
Moonset: 06:50 AM
Moon Phase
( Waxing Gibbous )
Seymour Weather forecasts are usually fully updated every 4 hours.
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