Manchester, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Manchester weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast25%—96°78°—
- SundayJul 5Heavy Showers48%0.78″92°73°-4°
- MondayJul 6Thunderstorm84%0.32″78°70°-14°
- TuesdayJul 7Thunderstorm83%0.72″80°68°+2°
- WednesdayJul 8Drizzle32%0.05″74°63°-6°
- ThursdayJul 9Overcast11%—85°64°+11°
- FridayJul 10Overcast46%—85°68°0°
AQI 96 (Moderate), driven by Ozone. AQI up 43 in the last 6 hours — air quality is degrading. Ozone at AQI 81 — 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 81 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 81
- UV peak
- 1.1 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 81
PM × Wind × Precip
PM2.5 at 7.3 µg/m³, PM10 at 8.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- Wind
- light
- Recent rain
- 0h 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
- 11:00 PM
- Moonset
- 10:11 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Manchester at a glance
- Today vs. normal: 24°F above the seasonal normal for this latitude
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21102
16-Day Forecast — Manchester
- Sat96°78°25%
- Sun92°73°48%
- Mon78°70°84%
- Tue80°68°83%
- Wed74°63°32%
- Thu85°64°11%
- Fri85°68°46%
- Sat84°67°28%
- Sun76°63°30%
- Mon78°63°17%
- Tue82°61°16%
- Wed84°61°35%
- Thu87°65°46%
- Fri86°69°46%
- Sat88°67°40%
- Sun81°69°52%
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 — Manchester
SPC has placed Manchester in the Enhanced Risk category for severe thunderstorms today.
- TODAYENHEnhanced Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 Manchester
- 21102