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Swansea, IL

66°F
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Winter Center
Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Saturday, June 21

Day

6/21
97°Hi
RealFeel® 104°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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™ 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
Sunny and hot; caution advised if outside for extended periods of time
alerts

Extreme Heat Watch

12:00 PM Saturday - 9:00 PM Tuesday

Max UV Index11 (Extreme)

AccuLumen Brightness Index™9 (Very Bright)

WindSSW 12 mph

Wind Gusts22 mph

Probability of Precipitation3%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover7%

Morning

Afternoon

Night

6/21
73°Lo
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clear, warm and humid
alerts

Extreme Heat Watch

12:00 PM Saturday - 9:00 PM Tuesday

WindSSW 7 mph

Wind Gusts15 mph

Probability of Precipitation5%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover0%

Evening

Overnight

Sun & Moon

14 hrs 52 mins
Rise 5:36 AM
Set 8:28 PM
Waning Crescent
Rise 2:09 AM
Set 4:35 PM

Temperature History

6/21
High
Low
Forecast
97°
73°
Average
89°
66°
Last Year
93°
67°
Record
98°
1988
42°
1992

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World North America United States Illinois Swansea

Weather Near Swansea:

  • O'Fallon, MO
  • St. Charles, MO
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