As of 12:01 CDT

Lewisville, TX weather in September

95°

Lewisville, Sunday, 9 August, 12:01

Clear. Feels like 106°. High 99°, low 77°.

Pressure30.00 inHg

Wind6 mph S

Humidity52%

Visibility6.2 mi

Dew point73°

See detailed hourly forecast

In September, Lewisville, TX averages a high of 86.6° and a low of 70.5°. About 3.0 inches of precipitation fall over the month (7 wet days). The record high is 107.6° (2000) and the record low 47.5° (1984). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	90.7°	75.2°	30%	103.5° (2000)	68° (1967)
2	90.3°	75°	30%	104.9° (2000)	63.9° (1987)
3	90.1°	74.5°	30%	104.9° (2000)	60.8° (1974)
4	90.1°	74.7°	23%	107.6° (2000)	59° (1974)
5	89.8°	73.9°	22%	101.8° (2012)	57.2° (1974)
6	89.6°	73.4°	18%	100° (2012)	56.5° (1974)
7	89.8°	73.4°	20%	104.7° (2023)	60.6° (1974)
8	88.9°	73.4°	22%	105.4° (2023)	63.5° (2024)
9	88.2°	72.3°	25%	97.2° (1984)	60.4° (2004)
10	87.4°	71.2°	25%	100.8° (2014)	58.5° (2020)
11	87.4°	71.6°	23%	99.5° (2000)	59.7° (1968)
12	87.1°	71.2°	30%	100.2° (2011)	61.9° (1966)
13	86.9°	71.6°	27%	106.7° (2011)	59.5° (2014)
14	86°	71.4°	30%	100.6° (1965)	58.6° (1961)
15	86°	71.1°	33%	99.1° (1965)	55.9° (1993)
16	86.2°	71.1°	32%	101.5° (1980)	55.8° (1993)
17	86.7°	70.5°	18%	96.4° (1997)	55.9° (1961)
18	86.9°	71.2°	18%	95.9° (2005)	53.6° (1981)
19	85.6°	70.5°	23%	97.7° (1960)	52.7° (1981)
20	86.4°	69.8°	18%	98.4° (2021)	52° (1971)
21	85.1°	69.3°	27%	96.8° (2005)	52.7° (1983)
22	84.6°	68.4°	20%	97.5° (2005)	50.7° (1983)
23	83.8°	67.6°	22%	97.2° (2000)	49.8° (1995)
24	83.5°	67.1°	22%	97° (1977)	51.4° (1989)
25	83.3°	66.6°	22%	100.2° (1977)	49.8° (1989)
26	83.3°	66°	15%	100.4° (1977)	50.4° (2000)
27	83.8°	66.2°	15%	102.2° (1977)	54.9° (1991)
28	83.7°	66.2°	17%	99.9° (2005)	50.9° (1996)
29	82.8°	64.8°	18%	99.3° (2011)	49.8° (1967)
30	83.1°	64.8°	8%	98.2° (1977)	47.5° (1984)