Harahan, Louisiana Weather
Fireflies pulse through the magnolias. Day 76 of spring. Read this microseason across nine climate regions →
Harahan weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Heavy Showers74%0.84″82°73°—
- ThursdayJun 4Overcast17%—82°73°0°
- FridayJun 5Light Showers77%0.82″85°73°+3°
- SaturdayJun 6Heavy Drizzle77%—86°74°+1°
- SundayJun 7Light Showers59%—86°73°0°
- MondayJun 8Light Drizzle22%—91°72°+5°
- TuesdayJun 9Overcast30%—93°71°+2°
Ozone at AQI 46 — peak already passed at 1 PM under overcast skies. AQI flat over the last 6 hours (within ±3 points). Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 46 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 46
- UV peak
- 0.8 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 46
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 5.1 µg/m³, PM10 to 5.8 µg/m³.
- PM2.5/PM10
- 0.88
- Wind
- breezy
- Recent rain
- 2h in last 6h
- Pattern
- washed out
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
The higher the clouds, the finer the weather.
- Moonrise
- 3:19 AM
- Moonset
- 1:31 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Harahan at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: February 15 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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.
SPC Convective Outlook
Storm Prediction Center — Harahan
SPC has placed Harahan in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.