Westmont
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Westmont Weather in September

Westmont in September sees high temperatures, with highs around 25°C (77°F) and overnight lows of 13°C (55°F). Rainfall is fairly high at around 86 mm (3.4 in) on average, so pack waterproofs just in case.

Rainfall in Westmont in September

Typically, you can expect about 11 days of rain this month, with 86 mm (3.4 in) on average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Westmont in September

Westmont in September has excellent weather. Days reach 25°C (77°F) and nights cool to 13°C (55°F). This kind of day-to-night contrast is typical for this time of year. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Westmont in September

Enjoy a sunny month with about 226 hours of sunshine, the clear skies make Westmont even more beautiful.

Wind Speed in Westmont in September

In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

Westmont Temperature in September

Min Temperature
13°C (55°F)
Max Temperature
25°C (77°F)
Chance of Rain
36%
Precipitation
86 mm (3.4 in)
Rainy days
11 days
Humidity
71% *
Windspeed
4 m/s (8 knots) *
Sunshine
226 hours *
Percentage Sunshine
60% *
* Data from: Chicago, the United States of America (21 KM, 13 Miles).

Westmont Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Westmont - 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 Westmont in September

For Westmont 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Westmont in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    9/10
  • Walking
    9/10
  • Barbeque
    8/10
  • Camping
    8/10
  • Outdoor sports
    9/10

Westmont 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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