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Union, IL

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

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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.
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rain drop 0%
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Mostly sunny
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

RealFeel Shade™85°

Heat Index86°

WindNNE 7 mph

Air QualityPoor

Max UV Index6.9 (High)

Wind Gusts8 mph

Humidity34%

Indoor Humidity34% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover19%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

86°
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.
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rain drop 0%
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Mostly sunny
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

RealFeel Shade™84°

Heat Index85°

WindNE 7 mph

Air QualityPoor

Max UV Index4.7 (Moderate)

Wind Gusts9 mph

Humidity36%

Indoor Humidity36% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover18%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

84°
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 0%
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Mostly sunny
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

RealFeel Shade™82°

Heat Index84°

WindNE 8 mph

Air QualityPoor

Max UV Index3.3 (Moderate)

Wind Gusts9 mph

Humidity40%

Indoor Humidity40% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

82°
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 0%
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Mostly sunny
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

RealFeel Shade™79°

Heat Index82°

WindENE 9 mph

Air QualityPoor

Max UV Index2.1 (Low)

Wind Gusts10 mph

Humidity44%

Indoor Humidity44% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

78°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 0%
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Mostly sunny
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

RealFeel Shade™75°

WindENE 10 mph

Air QualityPoor

Max UV Index1.2 (Low)

Wind Gusts10 mph

Humidity51%

Indoor Humidity51% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

75°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
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Mostly sunny
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

RealFeel Shade™72°

WindNE 13 mph

Air QualityPoor

Max UV Index0.3 (Low)

Wind Gusts13 mph

Humidity55%

Indoor Humidity55% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

70°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
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Mostly clear
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

WindNE 14 mph

Air QualityPoor

Wind Gusts14 mph

Humidity57%

Indoor Humidity57% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

67°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

WindENE 15 mph

Air QualityPoor

Wind Gusts16 mph

Humidity57%

Indoor Humidity56% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

64°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
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Mostly clear
alerts

Air Quality Alert

11:16 AM Tuesday - 12:00 AM Thursday

WindNE 15 mph

Air QualityFair

Wind Gusts17 mph

Humidity59%

Indoor Humidity52% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Union

AccuWeather's hourly forecast for Union provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 87° with a RealFeel® of 93°, mostly sunny with a 0% 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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Weather Near Union:

  • Chicago, IL
  • Joliet, IL
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