Mount Pleasant, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Mount Pleasant weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain44%2.1″93°69°—
- SundayJul 5Light Drizzle43%0.01″85°69°-8°
- MondayJul 6Thunderstorm86%—81°68°-4°
- TuesdayJul 7Thunderstorm52%—74°64°-7°
- WednesdayJul 8Light Drizzle11%0.02″79°64°+5°
- ThursdayJul 9Thunderstorm33%—85°62°+6°
- FridayJul 10Drizzle71%0.08″75°67°-10°
AQI 71 (Moderate), driven by Ozone. AQI up 12 over the last 6 hours (gradual rise). Ozone at AQI 88 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 88 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 88
- UV peak
- 4.2 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 88
PM × Wind × Precip
PM2.5 at 6.7 µg/m³, PM10 at 7.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- breezy
- Recent rain
- 1h in last 6h
- Pattern
- background
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
- 11:12 PM
- Moonset
- 10:22 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Mount Pleasant at a glance
- Today vs. normal: 22°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: 15666
16-Day Forecast — Mount Pleasant
- Sat93°69°44%
- Sun85°69°43%
- Mon81°68°86%
- Tue74°64°52%
- Wed79°64°11%
- Thu85°62°33%
- Fri75°67°71%
- Sat80°63°49%
- Sun76°60°32%
- Mon73°54°26%
- Tue76°54°25%
- Wed80°56°40%
- Thu83°58°36%
- Fri76°61°42%
- Sat82°68°56%
- Sun77°66°48%
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 — Mount Pleasant
SPC has placed Mount Pleasant in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 Mount Pleasant
- 15666
- 15685