Crystal Lake, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

22°F
Feels Like 22°F  
Humidity 83% Dew Point 17°F Wind Calm Barometer 30.12 in.
Report from a personal weather station 0.6 mi. W of central Crystal Lake
at

Point Forecast at a Glance

ThuDec 11
Thu Dec 11: Flurries, Low 18F
 
18
FriDec 12
Fri Dec 12: Snow, High 26F, Low 2F
30%
26
2
SatDec 13
Sat Dec 13: Snow, High 8F, Low -7F
40%
8
-7
SunDec 14
Sun Dec 14: Sunny, High 6F, Low -5F
6
-5
MonDec 15
Mon Dec 15: Partly Sunny, High 20F, Low 12F
20
12
TueDec 16
Tue Dec 16: Partly Sunny, High 34F, Low 29F
34
29
WedDec 17
Wed Dec 17: Mostly Cloudy, High 40F, Low 30F
40
30

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7-Day Temperature Trend

Week Ahead Summary

High temperatures dip from 26°F to a low of 6°F mid-week, then warm to 40°F. Unsettled weather expected with snow likely on at least 4 days.

Climate Context

This week's forecast shows temperatures running 10°F below the historical average for December. Normal highs for this period are around 35°F with lows around 20°F.

This Date in Weather History

1988 - Arctic cold invaded the central and eastern U.S. Sault Ste Marie MI reported a record low of 14 degrees below zero, and International Falls MN was the cold spot in the nation with a low of 25 degrees below zero. Temperatures remained below zero all day over parts of eastern Upper Michigan and northern New England.

More on this and other weather history

Crystal Lake, IL 7 Day Weather Forecast Details

Thursday Dec 11

Flurries

Night: A slight chance of flurries between 11pm and midnight. Cloudy, with a low around 18. North wind around 5 mph.

Friday Dec 12

Snow

Day: A 30 percent chance of snow, mainly between 9am and 3pm. Mostly cloudy, with a high near 26. North wind 5 to 10 mph becoming west in the afternoon.

Snow Showers

Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 2. Wind chill values as low as -14. West wind 10 to 15 mph, with gusts as high as 25 mph.

Saturday Dec 13

Snow

Day: A 40 percent chance of snow. Mostly cloudy and cold, with a high near 8. Wind chill values as low as -15. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Mostly Clear

Night: Mostly clear, with a low around -7. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Sunday Dec 14

Sunny

Day: Sunny and cold, with a high near 6.

Partly Cloudy

Night: Partly cloudy, with a low around -5.

Monday Dec 15

Partly Sunny

Day: Partly sunny, with a high near 20.

Mostly Cloudy

Night: Mostly cloudy, with a low around 12.

Tuesday Dec 16

Partly Sunny

Day: Partly sunny, with a high near 34.

Mostly Cloudy

Night: Mostly cloudy, with a low around 29.

Wednesday Dec 17

Mostly Cloudy

Day: Mostly cloudy, with a high near 40.

Rain

Night: A chance of rain. Mostly cloudy, with a low around 30.

Thursday Dec 18

Rain

Day: A chance of rain. Partly sunny, with a high near 38.


About Crystal Lake, IL

Crystal Lake is a city in McHenry County, Illinois, United States. Named after a lake 1.6 miles (2.6 km) southwest of the city's downtown, Crystal Lake is 45 miles (72 km) northwest of Chicago. The population was 40,269 as of the 2020 census. Crystal Lake is the most populous city in McHenry County, part of the Chicago metropolitan area.

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

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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.

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