Weather Waterloo long-term weather forecast

Long-term weather forecast for Waterloo for ten days.

Saturday, Jan 17

30 / 21°F

0.00 in

12 mph

30 °F	25 °F	12 am
23 °F	18 °F	6 am
23 °F	16 °F	12 pm
21 °F	14 °F	6 pm

sunrise 7:15 am
sunset 5:06 pm

HOURLY

From morning untill noon light snow, in the afternoon overcast. The highest temperature 30 °F. Total rainfall 0.04 in. At night partly cloudy. The lowest temperature 21 °F.

Interactive map weather Illinois, USA

GPS: 38.3359; -90.1498

altitude: 708 ft
local time:

PLACES IN THE AREA

Weather forecast Waterloo, Illinois, USA extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Saturday 01/17/2026
12 AM 1 AM	light snow	30 °F 25 °F	0.04 in	6 fps 4 mph northwest	29.9 in	92 %	28 °F	100 %	0%	100%	100%	2%
6 AM 7 AM	overcast	23 °F 16 °F	0.01 in	15 fps 10 mph west-northwest	30.0 in	81 %	19 °F	100 %	0%	100%	100%	0%
12 PM 1 PM	overcast	23 °F 16 °F	0.0 in	17 fps 12 mph west-northwest	30.2 in	70 %	16 °F	100 %	0%	100%	3%	0%
6 PM 7 PM	overcast	21 °F 14 °F	0.0 in	12 fps 8 mph west-northwest	30.3 in	71 %	14 °F	99 %	0%	99%	10%	0%
Sunday 01/18/2026
12 AM 1 AM	partly cloudy	19 °F 14 °F	0.0 in	4 fps 3 mph west	30.4 in	74 %	12 °F	13 %	0%	13%	0%	0%
6 AM 7 AM	clear	14 °F 7 °F	0.0 in	7 fps 4 mph southwest	30.3 in	72 %	9 °F	0 %	0%	0%	0%	0%
12 PM 1 PM	partly cloudy	30 °F 23 °F	0.0 in	12 fps 9 mph south-southwest	30.2 in	48 %	14 °F	27 %	0%	0%	0%	27%
6 PM 7 PM	partly cloudy	32 °F 25 °F	0.0 in	15 fps 10 mph south	30.1 in	52 %	18 °F	19 %	0%	0%	8%	18%

Waterloo, Illinois, USA - information

State: Illinois, USA

GPS coordinates: 38.3359; -90.1498

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

Population: 10 236
Altitude: 708 ft
The administrative part:

Illinois, Springfield
Monroe County, Waterloo

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Weather Waterloo, Illinois, USA. Weather forecast Waterloo.

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Data source

Weather forecast for Waterloo 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.

Weather with Meteobox for your website

Astronomical information Waterloo

data are always in the local time

Sun and light

Jan. 17, 2026

Sunrise:	Sunset:
7:15 am	5:06 pm
Noon:	Length of day:
12:10 pm	09:51
Start of civil twilight*:	End of civil twilight*:
6:45 am	5:36 pm
Start of nautical twilight*:	End of nautical twilight*:
6:14 am	6:07 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:42 am	6:39 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
01/17/2026 6:45 am	01/17/2026 3:56 pm
Next new moon:	Next full moon:
01/18/2026	02/01/2026