Casselberry, Florida Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Casselberry weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Overcast——86°67°—
- SaturdayJun 6Overcast——89°67°+3°
- SundayJun 7Overcast——95°71°+6°
- MondayJun 8Overcast16%—95°74°0°
- TuesdayJun 9Light Drizzle44%—89°76°-6°
- WednesdayJun 10Light Drizzle43%—91°74°+2°
- ThursdayJun 11Light Drizzle56%0.02″81°74°-10°
AQI 40 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (steady decline since this morning). PM2.5 at 10.7 µg/m³ (AQI 54) with a 0.69 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
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 33 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 by mid-afternoon.
- Present
- AQI 33
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 10.7 µg/m³ (AQI 54) with a 0.69 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.69
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 3:59 AM
- Moonset
- 2:55 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Casselberry at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: February 7 (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 5, 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.