Weather Rochester, Illinois week

Weather forecast for Rochester, Illinois for this and next week.

Wednesday, Jan 14

41 / 28°F

0.00 in

16 mph

41 °F	37 °F	12 am
39 °F	34 °F	6 am
36 °F	28 °F	12 pm
28 °F	19 °F	6 pm

sunrise 7:17 am
sunset 4:57 pm

HOURLY

During the day clear, in the afternoon snow, in the evening initially snow, later overcast. The highest temperature 41 °F. Total rainfall 0.08 in. At night clear. The lowest temperature 28 °F.

Interactive map weather Illinois, USA

GPS: 39.7495; -89.5318

altitude: 564 ft
local time:

PLACES IN THE AREA

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Weather forecast Rochester, Illinois, Illinois, USA extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Wednesday 01/14/2026
12 AM 1 AM	clear	41 °F 36 °F	0.01 in	14 fps 9 mph west-northwest	29.7 in	77 %	34 °F	2 %	0%	1%	0%	0%
6 AM 7 AM	overcast	39 °F 34 °F	0.00 in	15 fps 10 mph west-northwest	29.7 in	88 %	36 °F	100 %	0%	58%	100%	0%
12 PM 1 PM	snow	36 °F 28 °F	0.06 in	24 fps 16 mph northwest	29.8 in	64 %	25 °F	100 %	0%	100%	100%	0%
6 PM 7 PM	overcast	28 °F 21 °F	0.0 in	23 fps 16 mph north-northwest	30.0 in	64 %	19 °F	100 %	0%	100%	86%	0%
Thursday 01/15/2026
12 AM 1 AM	overcast	23 °F 16 °F	0.0 in	20 fps 14 mph north-northwest	30.1 in	61 %	14 °F	99 %	0%	99%	28%	0%
6 AM 7 AM	clear	19 °F 12 °F	0.0 in	15 fps 10 mph north-northwest	30.1 in	65 %	10 °F	0 %	0%	0%	0%	0%
12 PM 1 PM	overcast	28 °F 21 °F	0.0 in	7 fps 4 mph west-northwest	30.1 in	46 %	10 °F	100 %	0%	0%	0%	100%
6 PM 7 PM	snow	27 °F 21 °F	0.07 in	4 fps 3 mph south-southwest	29.9 in	60 %	16 °F	100 %	0%	0%	100%	100%

Rochester, Illinois, Illinois, USA - information

State: Illinois, USA

GPS coordinates: 39.7495; -89.5318

Time zone: America / Chicago time difference in hours with time in NY is -7 hours

Population: 3 779
Altitude: 564 ft
The administrative part:

Illinois, Springfield
Sangamon County, Springfield

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Weather Rochester, Illinois, Illinois, USA. Weather forecast Rochester, Illinois.

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Data source

Weather forecast for Rochester, Illinois is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

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Astronomical information Rochester, Illinois

data are always in the local time

Sun and light

Jan. 14, 2026

Sunrise:	Sunset:
7:17 am	4:57 pm
Noon:	Length of day:
12:07 pm	09:40
Start of civil twilight*:	End of civil twilight*:
6:47 am	5:27 pm
Start of nautical twilight*:	End of nautical twilight*:
6:14 am	6 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:42 am	6:32 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
01/14/2026 4:08 am	01/14/2026 1:09 pm
Next new moon:	Next full moon:
01/18/2026	02/01/2026