Lewisville Weather in September

What's the weather like in Lewisville (Arkansas) in September 2025?

The climate in Lewisville during September can be summarized as hot, humid and a little damp.

September is in the fall / autumn in Lewisville and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (86°F), whilst at night 18°C (63°F) is normal.

Lewisville weather averages (imperial / metric)
Daytime temperature 30°C 85.9°F
Nightly temperature 17.5°C 63.4°F
Average temperature 23.7°C 74.7°F
Daily sunshine 9 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 7 days
Sea temperature 24.8°C 76.6°F
Humidity 74%
Windspeed 11.9kph 7 mph

On average September is the 4th driest month of the year in Lewisville with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 9 hours of sunshine per day.

September temperatures in Lewisville

Lewisville average temperature in September

September rainfall

Lewisville average rain in September

September hourly sunshine

Lewisville average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Lewisville in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Lewisville weather stats

Lewisville weather statistics
Hottest month: July 33.5°C 92.3°F
Driest month: August 84mm 3.3ins
Sunniest month: July 11.2hrs
Coldest month: January 11.4°C 52.5°F
Wettest month: May 130mm 5.1ins
Map showing location of Lewisville (33.35846, -93.57768) Lewisville map pin © Google

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