Grahamtown, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Grahamtown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast25%—89°70°—
- SundayJul 5Overcast44%—87°70°-2°
- MondayJul 6Drizzle89%0.03″79°65°-8°
- TuesdayJul 7Light Showers66%—87°63°+8°
- WednesdayJul 8Heavy Drizzle21%—76°63°-11°
- ThursdayJul 9Overcast11%—87°60°+11°
- FridayJul 10Light Drizzle50%—77°65°-10°
AQI 84 (Moderate), driven by Ozone. AQI up 32 in the last 6 hours — air quality is degrading. Ozone at AQI 58. Overcast through the UV peak window (cloud cover ~68%) — afternoon ozone should stay flat.
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 58. Overcast through the UV peak window (cloud cover ~68%) — afternoon ozone should stay flat.
- Present
- AQI 58
- UV peak
- 0.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 7.0 µg/m³, PM10 at 7.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- 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
- 11:09 PM
- Moonset
- 10:20 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Grahamtown at a glance
- Today vs. normal: 9°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.
16-Day Forecast — Grahamtown
- Sat89°70°25%
- Sun87°70°44%
- Mon79°65°89%
- Tue87°63°66%
- Wed76°63°21%
- Thu87°60°11%
- Fri77°65°50%
- Sat81°62°29%
- Sun77°59°24%
- Mon74°57°22%
- Tue80°55°19%
- Wed85°57°39%
- Thu86°60°42%
- Fri78°62°44%
- Sat84°65°42%
- Sun83°65°47%
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 — Grahamtown
SPC has placed Grahamtown 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 Grahamtown
- 21532