Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Belle Chasse, Louisiana

Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →

Belle Chasse, LA
Sunday, May 17 at 4:51 AM
71
°
Clear
Feels like
74°
Humidity
78%
Wind
6 mph
Sunrise
6:06 AM
Sunset
7:46 PM
Belle Chasse, LA
Hour by hour · 24h
71°
11p
71°
12a
69°
1a
69°
2a
66°
3a
66°
4a
66°
5a
65°
6a
68°
7a
74°
8a
79°
9a
83°
10a
85°
11a
84°
12p
85°
1p
86°
2p
86°
3p
86°
4p
85°
5p
84°
6p
79°
7p
78°
8p
76°
9p
74°
10p
L 65°H 86°
Belle Chasse, LA
7-day forecast
  1. Today
    May 16
    Overcast
    —
    85°68°
  2. Sunday
    May 17
    Overcast
    16%
    88°68°
  3. Monday
    May 18
    Overcast
    —
    88°76°
  4. Tuesday
    May 19
    Drizzle
    30%
    91°73°
  5. Wednesday
    May 20
    Overcast
    37%
    90°72°
  6. Thursday
    May 21
    Overcast
    51%
    92°71°
  7. Friday
    May 22
    Overcast
    56%
    91°73°
Belle Chasse, LA
Next 24 hours · Mild now
HOT 90°60°78°95°12a6a12p6pnow 71°high 86°low 65°
Belle Chasse, LA
Anemometer · 24h winds · from true
NESW
From · True
SE
146° · veering 17°
Direction
SE
146°
Sustained
6
mph
Gust
15
mph
Peak 24h
16
avg 6
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 6 · pk 16 @ 9:00p
−24h−18h−12h−6hnow
Light breeze veering 17° from the se.
Belle Chasse, LA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1015.9
+0.5 mb in 3h · falling · 30.00 inHg
Now
1015.9
mb
3h
+0.5
mb
12h
-0.6
mb
24h
-0.2
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1014–1019
−24h−18h−12h−6hnow
Fair, steady air — a quiet anticyclone holds the sky.
Belle Chasse, LA
Air quality
63
AQI
Moderate
PM 2.5
9.4 μg/m³
PM 10
12.5 μg/m³
NO₂
6.9 μg/m³
Ozone
102.0 μg/m³
UV Index
0.0 Low
Belle Chasse, LA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:41 AM
Sunrise
6:06 AM
Daylight
13h 40m
Sunset
7:46 PM
Civil dusk
1:14 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Belle Chasse, LA
The moon
New Moon
0% illuminated
Moonrise
11:23 AM
Moonset
1:07 AM
In sign
♊︎ Gemini
Belle Chasse, LA
Microseason · 28 of 72
May 16–20

Roses open on the Piedmont edge

insect
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Belle Chasse at a glance

  • Today vs. normal: 11°F below the seasonal normal for this latitude
  • Last frost: February 14 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Peak growing season

As of May 17, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

All cities in Louisiana →

ZIP codes in Belle Chasse

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.