Marysville, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Marysville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast31%—92°70°—
- SundayJul 5Heavy Showers71%0.33″85°73°-7°
- MondayJul 6Thunderstorm33%—81°66°-4°
- TuesdayJul 7Light Drizzle12%—78°64°-3°
- WednesdayJul 8Partly Cloudy13%—84°63°+6°
- ThursdayJul 9Thunderstorm43%—80°65°-4°
- FridayJul 10Thunderstorm45%—77°69°-3°
AQI 30 (Good), driven by PM2.5. AQI down 8 over the last 6 hours (gradual decline). PM2.5 at 7.1 µg/m³ (AQI 39) with a 0.89 fine-to-coarse ratio and 5 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 during the projected peak around 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 33 now. With UV 3.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 17 around 1 PM.
- Present
- AQI 33
- UV peak
- 3.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 17
PM × Wind × Precip
PM2.5 at 7.1 µg/m³ (AQI 39) with a 0.89 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:28 PM
- Moonset
- 10:38 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Marysville at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 43040
16-Day Forecast — Marysville
- Sat92°70°31%
- Sun85°73°71%
- Mon81°66°33%
- Tue78°64°12%
- Wed84°63°13%
- Thu80°65°43%
- Fri77°69°45%
- Sat85°67°27%
- Sun74°61°22%
- Mon64°54°11%
- Tue76°61°12%
- Wed83°63°26%
- Thu83°66°26%
- Fri83°69°19%
- Sat84°68°40%
- Sun86°69°35%
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 — Marysville
SPC has placed Marysville in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Marysville
- 43040
- 43041