Donaldsonville, Louisiana Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Donaldsonville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Showers48%0.26″84°71°—
- FridayJun 5Overcast34%—86°69°+2°
- SaturdayJun 6Heavy Drizzle83%—88°73°+2°
- SundayJun 7Light Showers68%—88°72°0°
- MondayJun 8Light Drizzle36%—88°73°0°
- TuesdayJun 9Overcast33%—91°69°+3°
- WednesdayJun 10Partly Cloudy43%—90°70°-1°
Ozone at AQI 500. AQI flat over the last 6 hours (within ±4 points). Overcast through the UV peak window (cloud cover ~72%) — afternoon ozone should stay flat.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500. Overcast through the UV peak window (cloud cover ~72%) — afternoon ozone should stay flat.
- Present
- AQI 500
- UV peak
- 5.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 176
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.7 µg/m³, PM10 to 11.9 µg/m³.
- PM2.5/PM10
- 0.73
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:04 AM
- Moonset
- 2:32 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Donaldsonville at a glance
- Today vs. normal: 83°F — typical for the season
- Last frost: February 16 (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 4, 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 — Donaldsonville
SPC has placed Donaldsonville 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.