Des Plaines Weather in September

September in Des Plaines brings high temperatures, with daytime highs of 24°C (75°F) and nights around 14°C (57°F). Quite a bit of rainfall is expected, around 100 mm (3.9 in), so pack an umbrella.

Rainfall in Des Plaines in September

Analyzing past climate data, one can expect approximately 9 days of rain, averaging 100 mm (3.9 in). 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 Des Plaines in September

September in Des Plaines brings typical temperatures with highs around 24°C (75°F) and lows of 14°C (57°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Des Plaines in September

The days are predominantly sunny, with an estimated total of around 226 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Des Plaines in September

Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Des Plaines.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Des Plaines's climate page.

Des Plaines Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 30%  

Precipitation 100 mm (3.9 in)  

Rainy days 9 days  

Humidity 71% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 226 hours *  

Percentage Sunshine 60% *  

* Data from: Chicago, the United States of America (6 KM, 4 Miles).

What to Wear in Des Plaines in September

For Des Plaines 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 Des Plaines 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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Des Plaines's climate page.

More climate data for Des Plaines

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Des Plaines climate overview or explore weather in the United States of America.