LEMONT, IL 60439 Weather Forecast & Current Conditions

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ROMEOVILLE WFO, IL
Current Weather

1:15 AM CDT JUN 16, 2025
Few Clouds
66°F
Feels Like: 66°F
Dewpoint: 61°F
Rel. Hum.: 84%
Visibility: 10 miles
Wind: NE at 6 mph
Pressure: 30.06 inches
Last 72 hours

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LEMONT, IL 60439
Weather Forecast

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REST OF TONIGHT
Mostly cloudy in the late evening and early morning, then becoming partly cloudy. Lows in the lower 60s. East winds 5 to 10 mph.
MONDAY
Partly cloudy. Highs in the mid 80s. Southeast winds around 5 mph.
MONDAY NIGHT
Partly cloudy. Lows in the mid 60s. South winds around 5 mph.
TUESDAY
Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of precipitation 40 percent.
TUESDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Lows in the upper 60s. Southwest winds 5 to 10 mph. Chance of precipitation 70 percent.
WEDNESDAY
Showers and thunderstorms likely. Highs in the lower 80s. Chance of precipitation 70 percent.
WEDNESDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the mid 60s. Chance of precipitation 50 percent.
JUNETEENTH
Partly cloudy. Highs in the upper 70s.
THURSDAY NIGHT
Mostly clear. Lows in the lower 60s.
FRIDAY
Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 80s.
FRIDAY NIGHT
Partly cloudy. Lows in the upper 60s.
SATURDAY
Partly cloudy. Highs in the lower 90s. Heat index values up to 105.
SATURDAY NIGHT
Mostly clear. Lows in the lower 70s.

Visible Weather Satellite
LEMONT, IL 60439
Infrared Weather Satellite
LEMONT, IL 60439
NEXRAD Weather Radar
LEMONT, IL 60439

ROMEOVILLE WFO, IL 3 hourly weather forecast

weather forecast created  8:00 PM EDT  6/15/2025
Monday
16 JUN 2025
LEMONT, IL 60439 weather forecast Day 1, 0 hours 1 AM 66° 66° Mostly Cloudy 2%

0% Thunder
( 3% severe)
E   6 81% 60°
Low 63° LEMONT, IL 60439 weather forecast Day 1, 3 hours 4 AM 64° 65° Partly Cloudy E   3 90% 61°
High 86° LEMONT, IL 60439 weather forecast Day 1, 6 hours 7 AM 67° 67° Clear 3%

0% Thunder
( 3% severe)
SE   3 87% 63°

Partly Cloudy



LEMONT, IL 60439 weather forecast Day 1, 9 hours 10 AM 78° 80° Partly Cloudy SSE   5 60% 63°
LEMONT, IL 60439 weather forecast Day 1, 12 hours 1 PM 84° 85° Partly Cloudy 7%

0% Thunder
( 11% severe)
SE   7 49% 63°
LEMONT, IL 60439 weather forecast Day 1, 15 hours 4 PM 86° 87° Partly Cloudy SSE   7 46% 63°
LEMONT, IL 60439 weather forecast Day 1, 18 hours 7 PM 84° 85° Partly Cloudy 8%

0% Thunder
( 11% severe)
S   8 51% 64°
LEMONT, IL 60439 weather forecast Day 1, 21 hours 10 PM 75° 75° Mostly Cloudy SSE   5 69% 64°
Tuesday
17 JUN 2025
LEMONT, IL 60439 weather forecast Day 2, 0 hours 1 AM 71° 71° Partly Cloudy 6%

0% Thunder
( 8% severe)
SSW   5 87% 67°
Low 68° LEMONT, IL 60439 weather forecast Day 2, 3 hours 4 AM 69° 69° Mostly Cloudy SSW   5 97% 68°
High 89° LEMONT, IL 60439 weather forecast Day 2, 6 hours 7 AM 71° 71° Partly Cloudy 5%

0% Thunder
( 21% severe)
SW   6 93% 69°

Partly Cloudy

Chance of Rain

LEMONT, IL 60439 weather forecast Day 2, 9 hours 10 AM 80° 83° Partly Cloudy SW   8 72% 70°
LEMONT, IL 60439 weather forecast Day 2, 12 hours 1 PM 86° 91° Partly Cloudy 24%
RAIN
.01–.1 in
0% Thunder
( 53% severe)
SW   12 59% 70°
LEMONT, IL 60439 weather forecast Day 2, 15 hours 4 PM 88° 93° Partly Cloudy WSW   12 55% 70°
LEMONT, IL 60439 weather forecast Day 2, 18 hours 7 PM 84° 88° Mostly Cloudy 40%
RAIN
***
0% Thunder
( 49% severe)
WSW   10 61% 69°
LEMONT, IL 60439 weather forecast Day 2, 21 hours 10 PM 76° 77° Mostly Cloudy SW   7 79% 69°

ROMEOVILLE WFO, IL extended weather forecast

Wednesday
18 JUN 2025
Thursday
19 JUN 2025
Friday
20 JUN 2025
Saturday
21 JUN 2025
Sunday
22 JUN 2025
Low 67° Low 63° Low 64° Low 69° Low 71°
High 84° High 84° High 82° High 91° High 91°
LEMONT, IL 60439 weather forecast Day 3 LEMONT, IL 60439 weather forecast Day 4 LEMONT, IL 60439 weather forecast Day 5 LEMONT, IL 60439 weather forecast Day 6 LEMONT, IL 60439 weather forecast Day 7
Overcast
91% Rain
Overcast
78% Rain
Partly Cloudy
35% Rain
Partly Cloudy
17% Rain
Clear
19% Rain
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