Marathon, Florida Weather
Midyear heat — the wet season grip. Day 14 of summer. Read this microseason across nine climate regions →
Marathon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers26%1.2″90°76°—
- SundayJul 5Drizzle15%0.03″85°77°-5°
- MondayJul 6Light Showers——85°82°0°
- TuesdayJul 7Mostly Clear——87°83°+2°
- WednesdayJul 8Light Drizzle14%—87°86°0°
- ThursdayJul 9Thunderstorm——87°86°0°
- FridayJul 10Mostly Clear13%—86°85°-1°
AQI 36 (Good), driven by PM2.5. AQI up 7 over the last 6 hours (gradual rise). PM2.5 at 10.4 µg/m³ (AQI 53), ratio 0.43 with 9 mph wind — characteristic of long-range haze transport rather than a local source.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 10.4 µg/m³ (AQI 53), ratio 0.43 with 9 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.43
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:59 PM
- Moonset
- 10:43 AM
- In sign
- ♓︎ Pisces
Midyear heat — the wet season grip
Marathon at a glance
- Today vs. normal: 88°F — typical for the season
- Last frost: January 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 33050
16-Day Forecast — Marathon
- Sat90°76°26%
- Sun85°77°15%
- Mon85°82°4%
- Tue87°83°5%
- Wed87°86°14%
- Thu87°86°8%
- Fri86°85°13%
- Sat87°85°13%
- Sun87°86°4%
- Mon87°86°7%
- Tue87°86°13%
- Wed87°86°19%
- Thu86°85°28%
- Fri87°85°39%
- Sat86°85°58%
- Sun86°86°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Marathon
SPC includes Marathon in the general thunderstorm area today — no severe risk, but storms are possible.
- 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.
ZIP codes in Marathon
- 33050
- 33052