LEMONT, IL 60439 Weather Forecast & Current Conditions
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  60439 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

ROMEOVILLE WFO, IL
Current Weather
12:55 AM CDT MAY 15, 2025
Clear
64°F
Feels Like: 64°F
Dewpoint: 64°F
Rel. Hum.: 100%
Visibility: 10 miles
Wind: ESE at 7 mph
Pressure: 29.69 inches
Last 72 hours

Local Area Snow Depth

Illinois Current Weather

Illinois MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  60439 WEATHER FORECAST
10-Day model forecast maps
2024 Hurricanes

LEMONT, IL 60439
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Mostly clear in the late evening and early morning, then becoming partly cloudy. Isolated showers and thunderstorms late. Lows in the mid 60s. Southeast winds 5 to 10 mph. Chance of precipitation 20 percent.
THURSDAY
Partly cloudy in the morning, then becoming mostly sunny early to mid afternoon, then becoming partly cloudy late in the afternoon. Scattered showers and thunderstorms late in the afternoon. Breezy with highs around 90. Southeast winds 10 to 15 mph, increasing to south 15 to 20 mph in the afternoon. Gusts up to 30 mph. Chance of precipitation 40 percent.
THURSDAY NIGHT
Partly cloudy early in the evening, then becoming mostly clear. Scattered showers and thunderstorms early in the evening. Breezy with lows in the lower 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to around 10 mph after midnight. Chance of precipitation 40 percent.
FRIDAY
Mostly sunny through mid afternoon, then becoming partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Windy with highs in the upper 80s. Southwest winds 20 to 25 mph, becoming 15 to 25 mph in the afternoon. Gusts up to 40 mph. Chance of precipitation 20 percent.
FRIDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms in the evening. Breezy with lows in the upper 50s. Southwest winds 15 to 20 mph, becoming west 10 to 15 mph after midnight. Gusts up to 30 mph. Chance of precipitation 30 percent.
SATURDAY
Partly cloudy and breezy. Highs in the lower 70s.
SATURDAY NIGHT
Partly cloudy. Lows around 50.
SUNDAY
Partly cloudy in the morning, then clearing. Highs around 70.
SUNDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.
MONDAY
Mostly cloudy. Highs around 70.
MONDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Lows in the mid 50s. Chance of precipitation 50 percent.
TUESDAY
Showers likely. A chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 70 percent.
TUESDAY NIGHT
Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of precipitation 80 percent.

  60439 WEATHER SATELLITE LOOPS
Visible Weather Satellite
LEMONT, IL 60439
Infrared Weather Satellite
LEMONT, IL 60439
  60439 WEATHER RADAR LOOP
NEXRAD Weather Radar
LEMONT, IL 60439
 MOS COMPUTER WEATHER FORECAST

ROMEOVILLE WFO, IL 3 hourly weather forecast
weather forecast created  8:00 PM EDT  5/14/2025
Thursday
15 MAY 2025		 LEMONT, IL 60439 weather forecast Day 1, 0 hours 1 AM 64° 64° Clear 4%

 0% Thunder
( 8% severe)		 E   7 90% 61°
Low 62° LEMONT, IL 60439 weather forecast Day 1, 3 hours 4 AM 63° 63° Partly Cloudy SE   7 97% 62°
High 90° LEMONT, IL 60439 weather forecast Day 1, 6 hours 7 AM 66° 66° Partly Cloudy 11%
RAIN
<.01 in		 0% Thunder
( 14% severe)		 SE   9 93% 64°

Partly Cloudy

Chance of Rain

 LEMONT, IL 60439 weather forecast Day 1, 9 hours 10 AM 76° 77° Partly Cloudy SSE   13 74% 67°
LEMONT, IL 60439 weather forecast Day 1, 12 hours 1 PM 83° 87° Partly Cloudy 42%
RAIN
.01–.1 in		 0% Thunder
( 29% severe)		 SSE   17 63% 69°
LEMONT, IL 60439 weather forecast Day 1, 15 hours 4 PM 88° 92° Mostly Cloudy S   20 52% 68°
LEMONT, IL 60439 weather forecast Day 1, 18 hours 7 PM 83° 84° Partly Cloudy 27%
RAIN
.25–.5 in		 0% Thunder
( 30% severe)		 SW   17 53% 64°
LEMONT, IL 60439 weather forecast Day 1, 21 hours 10 PM 74° 74° Partly Cloudy WSW   14 62% 60°
Friday
16 MAY 2025		 LEMONT, IL 60439 weather forecast Day 2, 0 hours 1 AM 68° 68° Clear 0%

 0% Thunder
( 1% severe)		 SW   10 65% 56°
Low 62° LEMONT, IL 60439 weather forecast Day 2, 3 hours 4 AM 63° 62° Clear SSW   9 72% 54°
High 86° LEMONT, IL 60439 weather forecast Day 2, 6 hours 7 AM 64° 63° Clear 2%

 0% Thunder
( 1% severe)		 SSW   10 70% 54°

Partly Cloudy

Chance of Rain


Breezy		 LEMONT, IL 60439 weather forecast Day 2, 9 hours 10 AM 77° 78° Clear SSW   15 45% 54°
LEMONT, IL 60439 weather forecast Day 2, 12 hours 1 PM 84° 82° Partly Cloudy 33%
RAIN
***		 0% Thunder
( 31% severe)		 SSW   21 30% 49°
LEMONT, IL 60439 weather forecast Day 2, 15 hours 4 PM 83° 82° Partly Cloudy SSW   22 33% 51°
LEMONT, IL 60439 weather forecast Day 2, 18 hours 7 PM 76° 78° Mostly Cloudy 36%
RAIN
.5–1 in		 0% Thunder
( 22% severe)		 SW   18 45% 53°
LEMONT, IL 60439 weather forecast Day 2, 21 hours 10 PM 68° 68° Partly Cloudy WSW   15 61% 54°

ROMEOVILLE WFO, IL extended weather forecast
BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE
Low 61° Low 55° Low 46° Low 42° Low 49°
High 78° High 66° High 62° High 65° High 68°
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
Mostly Cloudy
70% Rain		 Mostly Cloudy
56% Rain		 Mostly Cloudy
14% Rain		 Clear
8% Rain		 Mostly Cloudy
21% Rain
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