Waterloo, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

31°F
Feels Like 28°F  
Humidity 57% Dew Point 18°F Wind SW 3 MPH Gusts 7 Barometer 30.12 in.
Report from a MADIS/MESONET weather station 0 mi. E of central Waterloo
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Point Forecast at a Glance

TueDec 16
Tue Dec 16: Increasing Clouds, High 52F, Low 33F
52
33
WedDec 17
Wed Dec 17: Sunny, High 54F, Low 43F
54
43
ThuDec 18
Thu Dec 18: Rain, High 53F, Low 20F
80%
53
20
FriDec 19
Fri Dec 19: Sunny, High 38F, Low 32F
38
32
SatDec 20
Sat Dec 20: Mostly Sunny, High 56F, Low 32F
56
32
SunDec 21
Sun Dec 21: Partly Sunny, High 48F, Low 32F
48
32
MonDec 22
Mon Dec 22: Partly Sunny, High 48F
48
 

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7-Day Temperature Trend

Week Ahead Summary

Significant warming trend with high temperatures climbing from 52°F to 48°F, reaching a high of 56°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 4°F above the historical average for December. Normal highs for this period are around 45°F with lows around 27°F.

This Date in Weather History

1835 - New England experienced one of their coldest days of record. At noon on that bitterly cold Wednesday the mercury stood at four degrees below at Boston, 15 degrees below at Norfolk CT, and 17 degrees below at Hanover NH. The temperature at Boston was 12 degrees below zero by sunset. Gale force winds accompanied the severe cold, and that night a great New York City fire destroyed much of the financial district.

More on this and other weather history

Waterloo, IL 7 Day Weather Forecast Details

Tuesday Dec 16

Increasing Clouds

Day: Increasing clouds, with a high near 52. South wind 6 to 11 mph, with gusts as high as 20 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 33. South wind 6 to 9 mph.

Wednesday Dec 17

Sunny

Day: Sunny, with a high near 54. Light and variable wind becoming south 5 to 7 mph in the afternoon.

Rain

Night: A 30 percent chance of rain after midnight. Increasing clouds, with a temperature falling to near 43 by 8pm, then rising to around 51 during the remainder of the night. South wind 8 to 15 mph, with gusts as high as 24 mph.

Thursday Dec 18

Rain

Day: Rain, mainly before noon. Temperature rising to near 53 by 8am, then falling to around 43 during the remainder of the day. Breezy, with a south wind 15 to 21 mph becoming west in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 80%.

Mostly Clear

Night: Mostly clear, with a low around 20. Breezy.

Friday Dec 19

Sunny

Day: Sunny, with a high near 38.

Partly Cloudy

Night: Partly cloudy, with a low around 32.

Saturday Dec 20

Mostly Sunny

Day: Mostly sunny, with a high near 56.

Mostly Cloudy

Night: Mostly cloudy, with a low around 32.

Sunday Dec 21

Partly Sunny

Day: Partly sunny, with a high near 48.

Rain And Snow

Night: A slight chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.

Monday Dec 22

Partly Sunny

Day: Partly sunny, with a high near 48.


About Waterloo, IL

Waterloo is a city in and county seat of Monroe County, Illinois, United States. The population was 11,013 at the 2020 census, up from 9,811 in 2010.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.