Slidell climate

Slidell Weather in August

NOAA 1991-2020 normals for Slidell, 1.6 km from Slidell

Average highs run from 90°F on August 1 to 89°F on August 31, and lows from 74°F to 73°F. Normal precipitation for the month is 7.57 in over about 14 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Slidell, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
90°F
Average low
74°F
Precipitation
7.57 in
Record high
108°FAug 26, 2023
Record low
58°FAug 26, 2015
Chance of a freeze
0%
Days of 90°F or more
20.1
Daylight
13 h 35 min to 12 h 48 min
Cloud cover
54%
Humidity
80%
Dew point
74°F
Wind
3.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 190°F74°F100°F 201067°F 201546%0%
Aug 290°F74°F100°F 201066°F 201546%0%
Aug 390°F74°F97°F 201570°F 200246%0%
Aug 490°F74°F99°F 202369°F 199846%0%
Aug 590°F74°F99°F 202367°F 202146%0%
Aug 690°F74°F101°F 202468°F 202146%0%
Aug 790°F74°F99°F 202365°F 200446%0%
Aug 890°F74°F98°F 202471°F 199446%0%
Aug 990°F74°F100°F 201567°F 200846%0%
Aug 1090°F74°F99°F 202367°F 200246%0%
Aug 1190°F74°F102°F 200768°F 199446%0%
Aug 1290°F74°F101°F 200767°F 200446%0%
Aug 1390°F74°F99°F 202360°F 200445%0%
Aug 1490°F74°F100°F 202469°F 200045%0%
Aug 1590°F74°F100°F 202366°F 201445%0%
Aug 1690°F74°F98°F 199559°F 200445%0%
Aug 1790°F74°F99°F 199561°F 200444%0%
Aug 1890°F74°F101°F 202364°F 200444%0%
Aug 1990°F74°F101°F 202369°F 200444%0%
Aug 2090°F74°F98°F 202369°F 201244%0%
Aug 2190°F73°F98°F 202368°F 202443%0%
Aug 2290°F73°F100°F 202367°F 199743%0%
Aug 2390°F73°F104°F 202366°F 200943%0%
Aug 2489°F73°F101°F 202362°F 200942%0%
Aug 2589°F73°F101°F 202363°F 200942%0%
Aug 2689°F73°F108°F 202358°F 201541%0%
Aug 2789°F73°F107°F 202358°F 201541%0%
Aug 2889°F73°F98°F 201163°F 201541%0%
Aug 2989°F73°F98°F 201164°F 201540%0%
Aug 3089°F73°F101°F 200068°F 201540%0%
Aug 3189°F73°F97°F 199768°F 201540%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Slidell, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:18 AM, sunset 7:53 PM
August 31
sunrise 6:35 AM, sunset 7:23 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00168539 (Slidell), public domain. Records: NOAA GHCN-Daily, station USW00053865, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.