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World Cup may have 'lengthy' weather delays Thursday. Click for the latest news, photos.

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Grafton, IL Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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4 PM

79°

RealFeel® 88°

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.

48%

Thunderstorms

Flood Watch

1:00 PM Thursday - 7:00 PM Friday

RealFeel Shade™84°

Heat Index83°

WindE 6 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts7 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling26000 ft

5 PM

79°

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.

56%

Thunderstorms

Flood Watch

1:00 PM Thursday - 7:00 PM Friday

RealFeel Shade™82°

Heat Index80°

WindNNE 6 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts7 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Rain0.01 in

Visibility10 mi

Cloud Ceiling24900 ft

6 PM

78°

RealFeel® 79°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

64%

Thunderstorms

Flood Watch

1:00 PM Thursday - 7:00 PM Friday

RealFeel Shade™79°

Heat Index80°

WindENE 7 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts8 mph

Humidity79%

Indoor Humidity79% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover88%

Rain0.10 in

Visibility4 mi

Cloud Ceiling4000 ft

7 PM

78°

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.

49%

Cloudy

Flood Watch

1:00 PM Thursday - 7:00 PM Friday

RealFeel Shade™83°

WindENE 6 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts8 mph

Humidity80%

Indoor Humidity80% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling14700 ft

8 PM

77°

RealFeel® 81°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

49%

Cloudy

Flood Watch

1:00 PM Thursday - 7:00 PM Friday

RealFeel Shade™81°

WindE 7 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts8 mph

Humidity81%

Indoor Humidity81% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling14700 ft

9 PM

75°

RealFeel® 78°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

49%

Cloudy

Flood Watch

1:00 PM Thursday - 7:00 PM Friday

WindE 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity89%

Indoor Humidity89% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling14700 ft

10 PM

72°

RealFeel® 71°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

61%

Thunderstorms

Flood Watch

1:00 PM Thursday - 7:00 PM Friday

WindE 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity98%

Indoor Humidity95% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.15 in

Visibility4 mi

Cloud Ceiling14700 ft

11 PM

72°

RealFeel® 75°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

49%

Cloudy

Flood Watch

1:00 PM Thursday - 7:00 PM Friday

WindE 8 mph

Air QualityFair

Wind Gusts8 mph

Humidity98%

Indoor Humidity95% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling10400 ft

Hourly Weather Forecast for Grafton

AccuWeather's hourly forecast for Grafton provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 79° with a RealFeel® of 88°, thunderstorms with a 48% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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