Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Newsletters
  • Advertising
  • Superior Accuracy™
Increasing flash flood threat looms in Texas as heat scorches recovery zone. Click for details Chevron right

Grafton, IL

77°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Grafton

Illinois

77°
No results found.
Try searching for a city, zip code or point of interest.
settings
Grafton, 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

July 12 - August 25

Sat 7/12

86° /71°
80%
Clouds and sun with a thunderstorm; humid

RealFeel®92°

RealFeel Shade™90°

Max UV Index9 (Very High)

WindWNW 8 mph

Sun 7/13

87° /70°
78%
Clouds and breaks of sun; humid with a couple of thunderstorms, mainly late in the day

RealFeel®98°

RealFeel Shade™90°

Max UV Index7 (High)

WindNNE 6 mph

Mon 7/14

89° /73°
4%
Partly sunny

RealFeel®104°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindSE 6 mph

Tue 7/15

87° /72°
67%
Humid with intervals of clouds and sunshine; a couple of afternoon showers and a thunderstorm

RealFeel®99°

RealFeel Shade™92°

Max UV Index8 (Very High)

WindSSW 7 mph

Wed 7/16

88° /72°
57%
Humid with partial sunshine; a thunderstorm in the afternoon

RealFeel®101°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindSW 8 mph

Thu 7/17

85° /72°
80%
Considerable cloudiness with a thunderstorm; humid

RealFeel®95°

RealFeel Shade™90°

Max UV Index5 (Moderate)

WindWSW 7 mph

Fri 7/18

83° /69°
55%
A brief shower or two in the morning; otherwise, mostly cloudy and humid

RealFeel®91°

RealFeel Shade™86°

Max UV Index4 (Moderate)

WindNW 5 mph

Sat 7/19

82° /67°
13%
Clouds giving way to some sun

RealFeel®92°

RealFeel Shade™83°

Max UV Index6 (High)

WindNNE 5 mph

Sun 7/20

88° /69°
2%
Abundant sunshine

RealFeel®96°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindS 6 mph

Mon 7/21

86° /73°
67%
Partly sunny and humid; a couple of thunderstorms in the afternoon

RealFeel®100°

RealFeel Shade™89°

Max UV Index10 (Very High)

WindSSW 4 mph

Tue 7/22

91° /73°
72%
Mostly cloudy with periods of rain in the afternoon

RealFeel®101°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindSSW 7 mph

Wed 7/23

92° /71°
41%
A morning shower in spots; otherwise, times of sun and clouds

RealFeel®104°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindSW 4 mph

Thu 7/24

91° /72°
1%
Mostly sunny

RealFeel®103°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindSW 4 mph

Fri 7/25

90° /70°
20%
Mostly sunny and humid

RealFeel®105°

RealFeel Shade™94°

Max UV Index10 (Very High)

WindW 4 mph

Sat 7/26

85° /69°
25%
Mainly cloudy and humid

RealFeel®93°

RealFeel Shade™92°

Max UV Index5 (Moderate)

WindESE 4 mph

Sun 7/27

86° /72°
65%
Humid with considerable cloudiness; a couple of showers and a thunderstorm in the afternoon

RealFeel®92°

RealFeel Shade™92°

Max UV Index3 (Moderate)

WindSE 7 mph

Mon 7/28

85° /71°
20%
Humid with sun followed by increasing clouds

RealFeel®97°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindWNW 6 mph

Tue 7/29

84° /71°
58%
Times of clouds and sun with a couple of thunderstorms; humid

RealFeel®96°

RealFeel Shade™89°

Max UV Index5 (Moderate)

WindW 5 mph

Wed 7/30

85° /65°
10%
Mostly sunny and less humid

RealFeel®93°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindNNW 6 mph

Thu 7/31

84° /64°
10%
Sunshine

RealFeel®92°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindNNW 4 mph

Fri 8/1

84° /65°
25%
Mostly cloudy

RealFeel®83°

RealFeel Shade™83°

Max UV Index4 (Moderate)

WindSE 5 mph

Sat 8/2

85° /69°
65%
A couple of morning showers and a thunderstorm; otherwise, cloudy and humid

RealFeel®92°

RealFeel Shade™92°

Max UV Index2 (Low)

WindESE 4 mph

Sun 8/3

85° /70°
25%
Mostly cloudy and humid

RealFeel®92°

RealFeel Shade™88°

Max UV Index5 (Moderate)

WindNNE 5 mph

Mon 8/4

86° /66°
20%
Mostly sunny and humid

RealFeel®96°

RealFeel Shade™87°

Max UV Index10 (Very High)

WindNE 5 mph

Tue 8/5

84° /64°
20%
Mostly sunny and less humid

RealFeel®89°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindNE 6 mph

Wed 8/6

84° /64°
20%
Plenty of sun

RealFeel®91°

RealFeel Shade™82°

Max UV Index9 (Very High)

WindENE 4 mph

Thu 8/7

85° /65°
25%
Rather cloudy

RealFeel®85°

RealFeel Shade™85°

Max UV Index4 (Moderate)

WindS 5 mph

Fri 8/8

85° /71°
20%
Partly sunny and humid

RealFeel®95°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindS 5 mph

Sat 8/9

90° /71°
20%
Humid with plenty of sunshine

RealFeel®99°

RealFeel Shade™95°

Max UV Index9 (Very High)

WindSSW 7 mph

Sun 8/10

92° /72°
25%
Humid with times of clouds and sun

RealFeel®95°

RealFeel Shade™94°

Max UV Index4 (Moderate)

WindSSW 8 mph

Mon 8/11

92° /72°
10%
Humid with abundant sunshine

RealFeel®96°

RealFeel Shade™93°

Max UV Index9 (Very High)

WindSSW 12 mph

Tue 8/12

91° /71°
5%
Humid with brilliant sunshine

RealFeel®99°

RealFeel Shade™96°

Max UV Index9 (Very High)

WindSSW 10 mph

Wed 8/13

91° /72°
25%
Humid with clouds to start, then sunshine returns

RealFeel®96°

RealFeel Shade™93°

Max UV Index3 (Moderate)

WindSW 8 mph

Thu 8/14

90° /72°
25%
Becoming cloudy

RealFeel®90°

RealFeel Shade™90°

Max UV Index6 (High)

WindSSW 9 mph

Fri 8/15

90° /71°
65%
Humid with considerable cloudiness; a couple of afternoon showers

RealFeel®97°

RealFeel Shade™97°

Max UV Index2 (Low)

WindW 4 mph

Sat 8/16

89° /70°
61%
A couple of showers in the morning; otherwise, very humid with considerable cloudiness

RealFeel®101°

RealFeel Shade™101°

Max UV Index3 (Moderate)

WindNE 2 mph

Sun 8/17

86° /70°
59%
A couple of showers in the morning; otherwise, continued cloudy and very humid

RealFeel®96°

RealFeel Shade™95°

Max UV Index2 (Low)

WindSE 5 mph

Mon 8/18

84° /69°
25%
Humid with times of clouds and sun

RealFeel®93°

RealFeel Shade™92°

Max UV Index8 (Very High)

WindSSE 6 mph

Tue 8/19

85° /70°
5%
Sunny and uncomfortably humid

RealFeel®96°

RealFeel Shade™93°

Max UV Index8 (Very High)

WindS 7 mph

Wed 8/20

90° /70°
5%
Sunny and humid

RealFeel®100°

RealFeel Shade™95°

Max UV Index8 (Very High)

WindSW 7 mph

Thu 8/21

91° /69°
20%
Mostly sunny and humid

RealFeel®100°

RealFeel Shade™95°

Max UV Index8 (Very High)

WindS 6 mph

Fri 8/22

91° /71°
5%
Sunshine and humid

RealFeel®97°

RealFeel Shade™92°

Max UV Index8 (Very High)

WindSSW 8 mph

Sat 8/23

90° /71°
25%
Increasing clouds, hot and humid

RealFeel®94°

RealFeel Shade™94°

Max UV Index4 (Moderate)

WindSSW 6 mph

Sun 8/24

90° /69°
5%
Sunny, hot and humid

RealFeel®99°

RealFeel Shade™93°

Max UV Index8 (Very High)

WindS 5 mph

Mon 8/25

89° /66°
25%
Mostly sunny and humid

RealFeel®97°

RealFeel Shade™92°

Max UV Index8 (Very High)

WindSSE 5 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Thunderstorms fuel increasing flash flooding threat in Texas

1 hour ago

Weather News

Engine fuel supply cut just before Air India jet crash, report says

4 hours ago

Weather News

Texas Hill Country: Before, during and after the flood

5 hours ago

Weather News

Flash flooding swamps Iowa Quad Cities as storms unleash damaging rain

2 hours ago

Severe Weather

Rounds of severe storms to rattle, drench central US

1 hour ago

More Stories

Featured Stories

Health

How can families handle new anxieties around summer camp?

1 day ago

Weather News

Viral pygmy hippo Moo Deng celebrates her first birthday

1 day ago

Weather News

Orcas are bringing humans gifts of food – but why?

1 day ago

Business

Samsung is looking into more AI devices potentially including earrings...

1 day ago

Weather News

The US has a plan to breed millions of flies and drop them from planes

2 days ago

World North America United States Illinois Grafton

Weather Near Grafton:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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

...

...

...