Plymouth, Indiana Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Plymouth weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain56%2.4″87°68°—
- SundayJul 5Heavy Showers30%2.1″81°69°-6°
- MondayJul 6Overcast15%—80°65°-1°
- TuesdayJul 7Overcast——81°61°+1°
- WednesdayJul 8Overcast13%—82°62°+1°
- ThursdayJul 9Thunderstorm27%—82°66°0°
- FridayJul 10Light Drizzle31%—78°66°-4°
AQI 34 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 40 now. With UV 2.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 14 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40 now. With UV 2.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 14 around 1 PM.
- Present
- AQI 40
- UV peak
- 2.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 14
PM × Wind × Precip
PM2.5 at 7.1 µg/m³ (AQI 39) with a 0.92 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- 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
- 11:42 PM
- Moonset
- 10:49 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Plymouth at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 46563
16-Day Forecast — Plymouth
- Sat87°68°56%
- Sun81°69°30%
- Mon80°65°15%
- Tue81°61°5%
- Wed82°62°13%
- Thu82°66°27%
- Fri78°66°31%
- Sat82°64°19%
- Sun69°62°9%
- Mon69°62°12%
- Tue75°59°12%
- Wed81°62°13%
- Thu84°66°26%
- Fri78°69°29%
- Sat85°68°24%
- Sun85°68°42%
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 — Plymouth
SPC has placed Plymouth 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 Plymouth
- 46563