As of 00:26 CDT

Slidell, LA weather in September

73°

Slidell, Wednesday, 7 October, 00:26

Overcast. Feels like 75°. High 83°, low 73°.

Pressure29.91 inHg

Wind3.4 mph N

Humidity88%

Visibility6.2 mi

Dew point70°

See detailed hourly forecast

In September, Slidell, LA averages a high of 84° and a low of 73.3°. About 4.8 inches of precipitation fall over the month (13 wet days). The record high is 97.7° (2000) and the record low 52.3° (1967). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	85.6°	76.1°	60%	95.2° (2000)	70.3° (1967)
2	85.8°	75.9°	52%	97.7° (2000)	66.2° (1967)
3	85.8°	75.9°	53%	93° (1989)	69.3° (1967)
4	85.3°	75.6°	60%	97.5° (2000)	66.6° (1974)
5	84.9°	75.2°	52%	94.8° (2000)	66.4° (1974)
6	84.4°	74.8°	60%	92.5° (2020)	64.4° (2011)
7	84.9°	74.5°	47%	93° (2019)	62.8° (2017)
8	85.5°	74.5°	45%	92.7° (2019)	61.9° (2017)
9	84.9°	74.8°	40%	92.3° (2023)	64.9° (2011)
10	84.7°	74.3°	53%	92.8° (2020)	64.4° (2021)
11	84.6°	73.9°	47%	91.4° (1980)	64.6° (1969)
12	84.6°	74.7°	55%	91.6° (2019)	64.4° (2017)
13	85.1°	74.3°	53%	92.7° (2019)	61.5° (2017)
14	85.3°	74.1°	33%	91° (2019)	63.3° (2022)
15	84.4°	74.5°	37%	90.7° (2000)	66.2° (1960)
16	84.2°	73.6°	45%	90.3° (2023)	62.4° (1961)
17	84.4°	73.8°	43%	93.7° (2023)	63.1° (1961)
18	84.4°	73.6°	32%	90.5° (2023)	61.7° (1981)
19	83.8°	73.4°	43%	91.8° (2005)	58.5° (1981)
20	84°	73.6°	33%	91.4° (2005)	62.4° (1981)
21	83.7°	73°	38%	94.5° (2022)	62.1° (1983)
22	83.1°	72.1°	42%	93.9° (2022)	55.6° (1983)
23	82.9°	71.6°	33%	92.7° (2022)	59.5° (1983)
24	82.6°	72°	37%	91.4° (2022)	58.1° (2021)
25	81.7°	71.2°	37%	91.4° (2022)	57.9° (1975)
26	82°	70.9°	37%	91.8° (2022)	57.6° (1975)
27	81.9°	70.2°	32%	90.7° (2023)	58.5° (1975)
28	82°	70°	30%	90° (2025)	57.2° (1967)
29	81.1°	69.1°	30%	90.3° (2025)	52.3° (1967)
30	81.1°	68.5°	23%	89.8° (2025)	54.7° (2020)