National Weather Service United States Department of Commerce

Severe thunderstorms possible this evening and tonight

Large hail and damaging winds may occur from eastern Montana into North Dakota. Strong storms are also possible over the southern mid-Atlantic states. Hot weather continues across the southern Plains to Arizona.
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Current Conditions

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Lemont IL

7 Day Forecast

For More Weather Information:

Chicago, IL Local Forecast Office

Overnight

Partly Cloudy

Partly
Cloudy

Low: 57 °F

Friday

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

High: 77 °F

Friday
Night

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

Low: 66 °F

Saturday

Mostly Cloudy

Mostly
Cloudy

High: 87 °F

Saturday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 68 °F

Sunday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 84 °F

Sunday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 62 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 73 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 57 °F

Detailed Forecast

  • Overnight Partly cloudy, with a low around 57. South southeast wind around 5 mph.
  • Friday A slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. South wind 5 to 15 mph. Chance of precipitation is 50%.
  • Friday Night Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 66. South wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
  • Saturday Mostly cloudy, with a high near 87. South southwest wind around 10 mph becoming west in the afternoon.
  • Saturday Night A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. West wind 5 to 10 mph.
  • Sunday A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
  • Sunday Night A slight chance of showers before 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.
  • Monday Mostly sunny, with a high near 73.
  • Monday Night Partly cloudy, with a low around 57.
  • Tuesday Mostly sunny, with a high near 76.
  • Tuesday Night Partly cloudy, with a low around 60.
  • Wednesday A slight chance of showers and thunderstorms. Partly sunny, with a high near 78.
  • Wednesday Night Partly cloudy, with a low around 62.
  • Thursday Mostly sunny, with a high near 79.