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Significant, life-threatening flash flooding ongoing in southeast Missouri. Get the latest. Chevron right

Marion, IL

86°F
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Marion

Illinois

86°
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Marion, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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4 PM

87°
RealFeel® 97°
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 39%
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Intermittent clouds
alerts

Flood Watch

1:00 PM Thursday - 1:00 AM Sunday

RealFeel Shade™93°

Heat Index96°

WindSW 9 mph

Air QualityFair

Max UV Index3.0 (Moderate)

Wind Gusts16 mph

Humidity66%

Indoor Humidity66% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

5 PM

86°
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 49%
Chevron down
Intermittent clouds
alerts

Flood Watch

1:00 PM Thursday - 1:00 AM Sunday

RealFeel Shade™93°

Heat Index95°

WindSW 8 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts15 mph

Humidity72%

Indoor Humidity72% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

6 PM

83°
RealFeel® 91°
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 63%
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Mostly cloudy w/ t-storms
alerts

Flood Watch

1:00 PM Thursday - 1:00 AM Sunday

RealFeel Shade™91°

Heat Index93°

WindSSW 8 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts13 mph

Humidity83%

Indoor Humidity83% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.15 in

Visibility4 mi

Cloud Ceiling2000 ft

7 PM

81°
RealFeel® 87°
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 58%
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Mostly cloudy w/ t-storms
alerts

Flood Watch

1:00 PM Thursday - 1:00 AM Sunday

RealFeel Shade™87°

Heat Index87°

WindS 7 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts8 mph

Humidity84%

Indoor Humidity84% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover70%

Rain0.08 in

Visibility5 mi

Cloud Ceiling4000 ft

8 PM

80°
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.
LEARN MORE
rain drop 49%
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Mostly cloudy
alerts

Flood Watch

1:00 PM Thursday - 1:00 AM Sunday

RealFeel Shade™88°

Heat Index86°

WindS 7 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts8 mph

Humidity84%

Indoor Humidity84% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling12100 ft

9 PM

79°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 59%
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Thunderstorms
alerts

Flood Watch

1:00 PM Thursday - 1:00 AM Sunday

Heat Index80°

WindS 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity84%

Indoor Humidity84% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover89%

Rain0.22 in

Visibility3 mi

Cloud Ceiling2000 ft

10 PM

77°
RealFeel® 82°
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 49%
Chevron down
Cloudy
alerts

Flood Watch

1:00 PM Thursday - 1:00 AM Sunday

WindS 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity86%

Indoor Humidity86% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling2000 ft

11 PM

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

Flood Watch

1:00 PM Thursday - 1:00 AM Sunday

WindS 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity91%

Indoor Humidity91% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling9600 ft

Hourly Weather Forecast for Marion

AccuWeather's hourly forecast for Marion provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 87° with a RealFeel® of 97°, intermittent clouds with a 39% 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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