Marathon, Texas Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Marathon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Showers18%0.12″97°69°—
- SundayJul 5Overcast——91°68°-6°
- MondayJul 6Overcast——91°70°0°
- TuesdayJul 7Overcast——90°73°-1°
- WednesdayJul 8Overcast——92°73°+2°
- ThursdayJul 9Clear——94°74°+2°
- FridayJul 10Clear——95°72°+1°
AQI 45 (Good), driven by Ozone. AQI down 6 over the last 6 hours (gradual decline). Ozone at AQI 34 now. With UV 5.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 25 around 1 PM.
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 34 now. With UV 5.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 25 around 1 PM.
- Present
- AQI 34
- UV peak
- 5.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 6.0 µg/m³ (AQI 33), ratio 0.67 with 7 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.67
- 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
- 11:37 PM
- Moonset
- 11:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Marathon at a glance
- Today vs. normal: 81°F — typical for the season
- Last frost: February 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 79842
16-Day Forecast — Marathon
- Sat97°69°18%
- Sun91°68°6%
- Mon91°70°3%
- Tue90°73°2%
- Wed92°73°2%
- Thu94°74°7%
- Fri95°72°8%
- Sat94°73°18%
- Sun90°72°21%
- Mon90°74°16%
- Tue92°74°10%
- Wed96°74°3%
- Thu101°76°3%
- Fri89°74°3%
- Sat90°71°7%
- Sun88°67°11%
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
- 79842