Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Lemont Weather in September
September is one of the excellent months to visit Lemont, with daytime temperatures of 25°C (77°F) and lows of 13°C (55°F) at night. Do note that quite a bit of rainfall is typical, averaging around 83 mm (3.3 in).
Rainfall in Lemont in September
The climate data from previous years indicates about 9 days of rain, averaging 83 mm (3.3 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Lemont in September
September in Lemont is generally excellent, with days reaching 25°C (77°F) and nights settling around 13°C (55°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Lemont in September
Expect sunny days throughout the month, with an estimated 226 hours of sunshine. This makes it a pleasant time to visit Lemont.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Lemont Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
25°C (77°F)
Chance of Rain
30%
Precipitation
83 mm (3.3 in)
Rainy days
9 days
Humidity
71% *
Sunshine
226 hours *
Percentage Sunshine
60% *
* Data from: Chicago, the United States of America (35 KM, 22 Miles).
Lemont Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lemont - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Lemont in September
For Lemont in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Lemont in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Lemont 3-Day Forecast
More climate data for Lemont
Temperature Rainfall Sunshine Humidity
See the full Lemont climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
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Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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