Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Atmospheric rivers to unleash heavy rain, feet of snow. Click for the forecast. Chevron right

Algonquin, IL

48°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Algonquin

Illinois

48°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Algonquin, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

January

January February March April May June July August September October November December

2027

2025 2026 2027

10-Day

S
M
T
W
T
F
S
27
Partly sunny and cold
25°
18°
28
A little afternoon rain
38°
22°
29
Partly sunny
34°
7°
30
Snow and ice, mainly early
38°
6°
31
Windy and colder
23°
4°
1
Very cold with clouds and sun
21°
4°
2
Mostly sunny and very cold
19°
6°
3
Mostly sunny and cold
22°
11°
4
Mostly sunny and cold
24°
11°
5
Rather cloudy, a little snow
32°
6°
6
Mainly cloudy
29°
18°
7
Intermittent snow
27°
19°
8
Periods of snow
29°
21°
9
Periods of snow
30°
21°
10
Cloudy with a little snow
32°
20°
11
Cloudy with a little snow
34°
10°
12
Very windy; a bit of snow
33°
6°
13
Windy with clouds and sun
24°
2°
14
Cold with some sun
22°
4°
15
Frigid with clouds and sun
19°
7°
16
Cold with a sun-and-cloud mix
21°
6°
17
Rather cloudy and cold
23°
9°
18
Partly sunny and cold
23°
19°
19
Periods of snow
26°
14°
20
Periods of snow
28°
14°
21
Mostly cloudy
29°
10°
22
Mostly cloudy
28°
14°
23
Periods of snow
27°
7°
24
Mostly cloudy
26°
5°
25
Mostly cloudy and cold
23°
5°
26
Cold with partial sunshine
21°
6°
27
Mostly sunny and cold
22°
8°
28
Partly sunny and cold
24°
21°
29
Cloudy with a little snow
31°
18°
30
Periods of snow
35°
7°
31
Cloudy with a little snow
33°
5°
1
Decreasing clouds and cold
22°
10°
2
Sunshine and cold
23°
17°
3
Mostly cloudy and not as cold
32°
18°
4
Mostly cloudy
30°
14°
5
Considerable cloudiness
31°
16°
6
Mainly cloudy
26°
20°

Temperature Graph

°F
40° 32° 24° 16° 8° Jan
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

January Weather in Algonquin

Algonquin's January 2027 forecast shows daily high temperatures ranging from 19° to 38°, with overnight lows between 2° and 22°. The average high for January is 27° with an average low of 12°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Algonquin. See also: February | March | April.

Further Ahead

February 2027

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Atmospheric rivers to bring flood risk, strong winds to Northwest

1 hour ago

Climate

October sets global heat record as dozens of US cities top their warme...

1 day ago

Weather Forecasts

Chillier pattern could bring snow beyond the mountains in Northeast

1 hour ago

Weather News

Over a foot of rain triggers rescues along Georgia-Tennessee border

1 day ago

Weather Forecasts

Slow-moving downpours to enhance flash flood risk across South Texas

1 hour ago

More Stories

Featured Stories

Weather News

Rare hummingbird appears in Colorado more than 1,000 miles from home

1 day ago

Travel

First coyote climbs world’s largest wildlife crossing before it opens

1 day ago

Recreation

Hikers stranded without lights on Northeast’s tallest mountain

2 days ago

Weather News

Niagara Falls may lose half its water. Here’s why humans slow the flow

1 day ago

Recreation

Decades-old cacti planted to heal Arizona burn scar hacked and shot

1 day ago

World North America United States Illinois Algonquin

Weather Near Algonquin:

  • Chicago, IL
  • Joliet, IL
  • Naperville, IL
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...