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Sweltering 90-100 F heat to expand, affect 170 million in central and eastern US. Details here Chevron right
Severe storms sweep Northeast, teen struck by lightning in Central Park. Read more Chevron right

Union, IL

82°F
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Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Saturday, June 21

Day

6/21
94°Hi
RealFeel® 100°
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
RealFeel Shade™ 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
Windy and humid with plenty of sunshine; start of an extended heat wave; stay cool and hydrated
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

Max UV Index10 (Very High)

AccuLumen Brightness Index™9 (Very Bright)

WindSSW 21 mph

Wind Gusts46 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover7%

Morning

Afternoon

Night

6/21
73°Lo
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clear, windy and humid
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

WindSSW 16 mph

Wind Gusts33 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover0%

Evening

Overnight

Sun & Moon

15 hrs 16 mins
Rise 5:18 AM
Set 8:34 PM
Waning Crescent
Rise 1:56 AM
Set 4:39 PM

Temperature History

6/21
High
Low
Forecast
94°
73°
Average
82°
61°
Last Year
90°
65°
Record
100°
1988
38°
1992

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Weather Near Union:

  • Chicago, IL
  • Joliet, IL
  • Naperville, IL
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