Raritan Weather Forecast 15 Days, Weather in Raritan Today

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5. Weather in Raritan for 15 days

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

27 December 2025 Saturday 4.7 ° C / 40.5°F Mist

Feels Like : 2.5 ° C / 36.6°F Humidity : % 100 Pressure : 1015 mb Wind Speed : 9 kmph / 5.6 miles from ESE Visibility : 2 km Precipitation (rainfall) : 0 mm Cloud (%) : 100

15 day weather forecast for Raritan, IL, USA

Weather Forecast for next 15 Days for Raritan 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 Raritan, 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	3.4 ° C (38.1°F)	6 ° C (42.8°F)	5.3 ° C (41.6°F)	% 97	0%	0.3	Sunrise:07:27 AM Sunset: 04:43 PM	Moonrise:11:41 AM Moonset: No moonset Moon Phase ( First Quarter )
28 December 2025 Sunday	Moderate rain	1.7 ° C (35.1°F)	16.1 ° C (61°F)	10.9 ° C (51.5°F)	% 97	87%	0	Sunrise:07:27 AM Sunset: 04:43 PM	Moonrise:12:04 PM Moonset: 12:44 AM Moon Phase ( Waxing Gibbous )
29 December 2025 Monday	Partly Cloudy	-8.5 ° C (16.6°F)	-6.7 ° C (19.9°F)	-6.6 ° C (20.1°F)	% 60	0%	0.2	Sunrise:07:27 AM Sunset: 04:44 PM	Moonrise:12:31 PM Moonset: 01:58 AM Moon Phase ( Waxing Gibbous )
30 December 2025 Tuesday	Sunny	-9.1 ° C (15.6°F)	-1.7 ° C (29°F)	-5.9 ° C (21.5°F)	% 53	0%	0.2	Sunrise:07:28 AM Sunset: 04:45 PM	Moonrise:01:05 PM Moonset: 03:15 AM Moon Phase ( Waxing Gibbous )
31 December 2025 Wednesday	Sunny	-3.1 ° C (26.4°F)	2.7 ° C (36.8°F)	-1.8 ° C (28.7°F)	% 70	0%	0	Sunrise:07:28 AM Sunset: 04:46 PM	Moonrise:01:48 PM Moonset: 04:35 AM Moon Phase ( Waxing Gibbous )
01 January 2026 Thursday	Partly Cloudy	-12.3 ° C (9.8°F)	-7.6 ° C (18.3°F)	-8 ° C (17.5°F)	% 54	0%	2	Sunrise:07:28 AM Sunset: 04:47 PM	Moonrise:02:42 PM Moonset: 05:53 AM Moon Phase ( Waxing Gibbous )
02 January 2026 Friday	Sunny	-14.5 ° C (6°F)	-7.9 ° C (17.8°F)	-11.5 ° C (11.3°F)	% 35	0%	2	Sunrise:07:28 AM Sunset: 04:47 PM	Moonrise:03:50 PM Moonset: 07:04 AM Moon Phase ( Waxing Gibbous )
03 January 2026 Saturday	Light freezing rain	-9.9 ° C (14.1°F)	-1.9 ° C (28.6°F)	-6.1 ° C (21°F)	% 40	80%	1	Sunrise:07:28 AM Sunset: 04:48 PM	Moonrise:05:06 PM Moonset: 08:02 AM Moon Phase ( Full Moon )
04 January 2026 Sunday	Mist	-4.6 ° C (23.7°F)	1.7 ° C (35.1°F)	-1.7 ° C (28.9°F)	% 90	0%	1	Sunrise:07:28 AM Sunset: 04:49 PM	Moonrise:06:25 PM Moonset: 08:47 AM Moon Phase ( Waning Gibbous )
05 January 2026 Monday	Patchy rain nearby	-0 ° C (31.9°F)	6 ° C (42.8°F)	2.7 ° C (36.8°F)	% 93	86%	1	Sunrise:07:28 AM Sunset: 04:50 PM	Moonrise:07:41 PM Moonset: 09:22 AM Moon Phase ( Waning Gibbous )
06 January 2026 Tuesday	Moderate rain	-1.9 ° C (28.5°F)	5 ° C (41°F)	3.2 ° C (37.7°F)	% 96	89%	1	Sunrise:07:28 AM Sunset: 04:51 PM	Moonrise:08:53 PM Moonset: 09:50 AM Moon Phase ( Waning Gibbous )
07 January 2026 Wednesday	Partly Cloudy	-5.7 ° C (21.7°F)	-2.8 ° C (26.9°F)	-4.3 ° C (24.3°F)	% 63	0%	2	Sunrise:07:28 AM Sunset: 04:52 PM	Moonrise:10:01 PM Moonset: 10:13 AM Moon Phase ( Waning Gibbous )
08 January 2026 Thursday	Partly Cloudy	-5.5 ° C (22.2°F)	-2.3 ° C (27.9°F)	-4.4 ° C (24.1°F)	% 63	0%	2	Sunrise:07:28 AM Sunset: 04:53 PM	Moonrise:11:05 PM Moonset: 10:34 AM Moon Phase ( Waning Gibbous )
09 January 2026 Friday	Partly Cloudy	-5.6 ° C (22°F)	0.5 ° C (32.9°F)	-2.7 ° C (27.1°F)	% 87	0%	2	Sunrise:07:28 AM Sunset: 04:54 PM	Moonrise:No moonrise Moonset: 10:54 AM Moon Phase ( Waning Gibbous )

Raritan Weather forecasts are usually fully updated every 4 hours.

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