Climate Slidell - Louisiana
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 61 | 64 | 71 | 77 | 84 | 89 |
| Average low in ºF Av. low Lo | 40 | 44 | 50 | 57 | 65 | 71 |
| Av. precipitation in inch Av. precip. Pre. | 5.65 | 4.95 | 5.28 | 4.36 | 5.16 | 5.57 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 91 | 91 | 87 | 80 | 71 | 63 |
| Average low in ºF Av. low Lo | 73 | 73 | 69 | 58 | 50 | 43 |
| Av. precipitation in inch Av. precip. Pre. | 6.83 | 6.92 | 4.99 | 3.82 | 4.47 | 4.89 |
What is the average weather in Slidell, Louisiana?
Slidell experiences a humid subtropical climate, characterized by hot summers and cool winters with strong seasonal contrast. The area is wet overall, receiving high annual precipitation. Rainfall is spread fairly evenly throughout the year, though heavy seasonal downpours or afternoon thunderstorms can occur during the warmer months.
Slidell Climate Graph - Louisiana Climate Chart
Daily normals Slidell - Louisiana - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 60.7 | 42.2 | 0.20 | 0.20 | 0.00 | 0.00 |
| 2 Jan | 60.6 | 42.1 | 0.40 | 0.40 | 0.00 | 0.00 |
| 3 Jan | 60.5 | 42.0 | 0.59 | 0.59 | 0.00 | 0.00 |
| 4 Jan | 60.5 | 41.9 | 0.79 | 0.79 | 0.00 | 0.00 |
| 5 Jan | 60.4 | 41.8 | 0.99 | 0.99 | 0.00 | 0.00 |
| 6 Jan | 60.4 | 41.7 | 1.19 | 1.19 | 0.00 | 0.00 |
| 7 Jan | 60.3 | 41.6 | 1.38 | 1.38 | 0.00 | 0.00 |
| 8 Jan | 60.3 | 41.6 | 1.58 | 1.58 | 0.00 | 0.00 |
| 9 Jan | 60.2 | 41.5 | 1.77 | 1.77 | 0.00 | 0.00 |
| 10 Jan | 60.2 | 41.5 | 1.97 | 1.97 | 0.00 | 0.00 |
| 11 Jan | 60.2 | 41.4 | 2.17 | 2.17 | 0.00 | 0.00 |
| 12 Jan | 60.2 | 41.4 | 2.36 | 2.36 | 0.00 | 0.00 |
| 13 Jan | 60.2 | 41.3 | 2.57 | 2.57 | 0.00 | 0.00 |
| 14 Jan | 60.2 | 41.3 | 2.77 | 2.77 | 0.00 | 0.00 |
| 15 Jan | 60.2 | 41.3 | 2.97 | 2.97 | 0.00 | 0.00 |
| 16 Jan | 60.3 | 41.3 | 3.17 | 3.17 | 0.00 | 0.00 |
| 17 Jan | 60.3 | 41.3 | 3.37 | 3.37 | 0.00 | 0.00 |
| 18 Jan | 60.3 | 41.3 | 3.57 | 3.57 | 0.00 | 0.00 |
| 19 Jan | 60.4 | 41.3 | 3.77 | 3.77 | 0.00 | 0.00 |
| 20 Jan | 60.5 | 41.3 | 3.97 | 3.97 | 0.00 | 0.00 |
| 21 Jan | 60.5 | 41.3 | 4.16 | 4.16 | 0.00 | 0.00 |
| 22 Jan | 60.6 | 41.4 | 4.35 | 4.35 | 0.00 | 0.00 |
| 23 Jan | 60.7 | 41.4 | 4.54 | 4.54 | 0.00 | 0.00 |
| 24 Jan | 60.8 | 41.5 | 4.73 | 4.73 | 0.00 | 0.00 |
| 25 Jan | 60.9 | 41.6 | 4.91 | 4.91 | 0.00 | 0.00 |
| 26 Jan | 61.0 | 41.7 | 5.08 | 5.08 | 0.00 | 0.00 |
| 27 Jan | 61.1 | 41.7 | 5.24 | 5.24 | 0.00 | 0.00 |
| 28 Jan | 61.3 | 41.8 | 5.41 | 5.41 | 0.00 | 0.00 |
| 29 Jan | 61.4 | 41.9 | 5.58 | 5.58 | 0.00 | 0.00 |
| 30 Jan | 61.5 | 42.1 | 5.75 | 5.75 | 0.00 | 0.00 |
| 31 Jan | 61.7 | 42.2 | 5.92 | 5.92 | 0.00 | 0.00 |
Weather history Slidell - September 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Sep | 89.1 | 75.9 | 0.00 | - | - |
| 02 Sep | 91.0 | 75.9 | 0.00 | - | - |
| 03 Sep | 91.0 | 75.9 | 0.00 | - | - |
| 04 Sep | 91.9 | 73.9 | 0.56 | - | - |
| 05 Sep | 88.0 | 75.0 | 0.40 | - | - |
| 06 Sep | 90.0 | 52.0 | 0.66 | - | - |
| 07 Sep | 90.0 | 55.0 | 0.00 | - | - |
| 08 Sep | 91.0 | 75.9 | 0.27 | - | - |
| 09 Sep | 91.9 | 75.9 | T | - | - |
| 10 Sep | 91.0 | 77.0 | 0.11 | - | - |
| 11 Sep | 80.1 | 75.9 | 0.11 | - | - |
| 12 Sep | 89.1 | 75.9 | T | - | - |
| 13 Sep | 90.0 | 75.0 | 0.41 | - | - |
| 14 Sep | 91.0 | 73.9 | 0.00 | - | - |
| 15 Sep | - | - | - | - | - |
| 16 Sep | - | - | - | - | - |
| 17 Sep | - | - | - | - | - |
| 18 Sep | - | - | - | - | - |
| 19 Sep | - | - | - | - | - |
| 20 Sep | - | - | - | - | - |
| 21 Sep | - | - | - | - | - |
| 22 Sep | - | - | - | - | - |
| 23 Sep | - | - | - | - | - |
| 24 Sep | - | - | - | - | - |
| 25 Sep | - | - | - | - | - |
| 26 Sep | - | - | - | - | - |
| 27 Sep | - | - | - | - | - |
| 28 Sep | - | - | - | - | - |
| 29 Sep | - | - | - | - | - |
| 30 Sep | - | - | - | - | - |
Past weather Slidell
| Sep 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 89.7 ºF | 61 ºF | |
| Average low temperature Av. low temp. | 72.4 ºF | 40 ºF | |
| Total precipitation Total precip. | 2.52 inch | 5.65 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 91.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 80.1 ºF | - | |
| Highest min temperature Highest min temp. | 77.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 52.0 ºF | - | |
Past weather September 2026 incomplete - Missing data
Geo Slidell - Louisiana
| Country | United States | |
|---|---|---|
| State | Louisiana | |
| County | St. Tammany | |
| City | Slidell | |
| Zip Code | 70460 | |
| Longitude | -89.82 dec. degr. | |
| Latitude | 30.33 dec. degr. | |
| Altitude - Elevation | 23ft | |
| ICAO | - | |
| IATA | - |
Date and Time Slidell - Louisiana
| Local Time | 11:26 PM | |
|---|---|---|
| Sunrise | 06:43 AM | |
| Sunset | 07:03 PM | |
| Day/Night | Night | |
| Timezone | Central Daylight Time | |
| Timezone DB | America - Chicago |
Map of Slidell - Louisiana
USGS National Map — Open interactive map
Slidell weather averages
| Annual high temperature | 77ºF |
| Annual low temperature | 58ºF |
| Average annual precip. | 62.89 inch |
Station Data
Monthly averages Slidell
Longitude: -89.8167, Latitude: 30.3333
Average weather Slidell, LA - 70460
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...