Gurnee Weather in September

With daytime temperatures of 23°C (73°F) and nighttime lows of 13°C (55°F), September in Gurnee brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 95 mm (3.7 in) falls on average.

Rainfall in Gurnee in September

Records from the past 30 years suggest around 10 days of rain, with 95 mm (3.7 in) average 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 Gurnee in September

Gurnee has perfect weather in September, with days reaching 23°C (73°F) and nights cooling to 13°C (55°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Gurnee in September

Expect a lot of sunshine this month, with about 226 hours of sun. These sunny conditions add to the overall experience.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Gurnee.

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• January
• February
• March
• April

• May
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• October
• November
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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 Gurnee's climate page.

Gurnee Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 33%  

Precipitation 95 mm (3.7 in)  

Rainy days 10 days  

Humidity 71% *  

Sunshine 226 hours *  

Percentage Sunshine 60% *  

* Data from: Chicago, the United States of America (43 KM, 26 Miles).

What to Wear in Gurnee in September

For Gurnee 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Gurnee in September

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

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 Gurnee's climate page.

More climate data for Gurnee

Temperature Rainfall Sunshine Humidity

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