Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Newsletters
  • Advertising
  • Superior Accuracy™
Barry makes landfall in Mexico threatening flooding, mudslides, damaging winds. Details here Chevron right
4th of July forecast: Will you need sunglasses or a raincoat? Click here to find out Chevron right

Grass Lake, IL

69°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Grass Lake

Illinois

69°
No results found.
Try searching for a city, zip code or point of interest.
settings
Grass Lake, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily 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

Newsletters

Advertising

Superior Accuracy™

Video

Winter Center
Today

Hourly

 Daily Radar MinuteCast Monthly Air Quality Health & Activities

4 AM

69°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 39%
Chevron down
Cloudy

WindSSW 6 mph

Air QualityFair

Wind Gusts14 mph

Humidity100%

Indoor Humidity95% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

70°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindSSW 6 mph

Air QualityFair

Wind Gusts14 mph

Humidity98%

Indoor Humidity95% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

72°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™75°

WindSW 6 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts14 mph

Humidity94%

Indoor Humidity94% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

73°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 56%
Chevron down
Thunderstorms

RealFeel Shade™73°

WindSW 7 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts14 mph

Humidity90%

Indoor Humidity90% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Rain0.15 in

Visibility10 mi

Cloud Ceiling24700 ft

8 AM

77°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 25%
Chevron down
Intermittent clouds

RealFeel Shade™80°

WindWSW 6 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts7 mph

Humidity82%

Indoor Humidity82% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover67%

Visibility10 mi

Cloud Ceiling19900 ft

9 AM

79°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

RealFeel Shade™83°

WindWSW 7 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts8 mph

Humidity76%

Indoor Humidity76% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover82%

Visibility10 mi

Cloud Ceiling19800 ft

10 AM

82°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™86°

WindW 7 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts8 mph

Humidity71%

Indoor Humidity71% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling19700 ft

11 AM

84°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

RealFeel Shade™87°

WindW 8 mph

Air QualityFair

Max UV Index4 (Moderate)

Wind Gusts9 mph

Humidity65%

Indoor Humidity65% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover84%

Visibility10 mi

Cloud Ceiling18000 ft

12 PM

86°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 20%
Chevron down
Intermittent clouds

RealFeel Shade™88°

WindW 8 mph

Air QualityFair

Max UV Index6 (High)

Wind Gusts10 mph

Humidity59%

Indoor Humidity59% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover72%

Visibility10 mi

Cloud Ceiling16300 ft

1 PM

88°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 18%
Chevron down
Intermittent clouds

RealFeel Shade™89°

WindW 9 mph

Air QualityFair

Max UV Index7 (High)

Wind Gusts13 mph

Humidity55%

Indoor Humidity55% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling14700 ft

2 PM

89°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 15%
Chevron down
Intermittent clouds

RealFeel Shade™90°

WindWNW 9 mph

Air QualityFair

Max UV Index6 (High)

Wind Gusts13 mph

Humidity52%

Indoor Humidity52% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling15300 ft

3 PM

87°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 15%
Chevron down
Mostly cloudy

RealFeel Shade™88°

WindNW 9 mph

Air QualityFair

Max UV Index4 (Moderate)

Wind Gusts13 mph

Humidity54%

Indoor Humidity54% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover81%

Visibility10 mi

Cloud Ceiling16000 ft

4 PM

86°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™87°

WindNW 9 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts13 mph

Humidity55%

Indoor Humidity55% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling16600 ft

5 PM

84°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 52%
Chevron down
Thunderstorms

RealFeel Shade™84°

WindNW 9 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts10 mph

Humidity70%

Indoor Humidity70% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover88%

Rain0.22 in

Visibility3 mi

Cloud Ceiling2000 ft

6 PM

81°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 48%
Chevron down
Mostly cloudy

RealFeel Shade™84°

WindNW 9 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts10 mph

Humidity72%

Indoor Humidity72% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover79%

Visibility10 mi

Cloud Ceiling25500 ft

7 PM

81°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 35%
Chevron down
Intermittent clouds

RealFeel Shade™82°

WindNW 8 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts10 mph

Humidity69%

Indoor Humidity69% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

80°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 16%
Chevron down
Mostly sunny

RealFeel Shade™80°

WindNW 8 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts9 mph

Humidity65%

Indoor Humidity65% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

77°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 16%
Chevron down
Mostly clear

WindWNW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity70%

Indoor Humidity70% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

74°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 16%
Chevron down
Mostly clear

WindWNW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity75%

Indoor Humidity75% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

72°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 16%
Chevron down
Mostly clear

WindWNW 7 mph

Air QualityExcellent

Wind Gusts8 mph

Humidity80%

Indoor Humidity80% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

Further Ahead

Tomorrow

Wednesday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Recreation

Boulders narrowly miss swimmers at popular Utah waterfall

2 days ago

Weather News

Severe thunderstorms to threaten central and eastern US

1 hour ago

Astronomy

Bright 'fireball' streaks across Southeast, may have hit Georgia home

2 days ago

Hurricane

Tropical activity to ramp up into the Fourth of July weekend

4 hours ago

Weather News

Over 2,800 high temperature records set during heat wave

2 days ago

 More Stories

Featured Stories

Weather News

AccuWeather joins Perplexity to power AI weather answers

3 days ago

Travel

A mother thought her baby was blown out of a plane

2 days ago

Weather News

Fossil reveals ‘Last of Us’-type fungus likely lived with dinosaurs

4 days ago

Climate

Your AI prompts could have a hidden environmental cost

6 days ago

Weather News

World’s most liveable city for 2025 revealed

5 days ago
World North America United States Illinois Grass Lake

Weather Near Grass Lake:

  • 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 RealFeel® and RealFeel Shade™ 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 RealFeel® and RealFeel Shade™ 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
© 2025 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

...

...

...