Reisterstown, Maryland Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Reisterstown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle47%0.02″98°78°—
- SundayJul 5Light Drizzle53%0.02″93°73°-5°
- MondayJul 6Light Showers85%0.03″83°69°-10°
- TuesdayJul 7Light Showers85%0.06″70°68°-13°
- WednesdayJul 8Light Drizzle33%—74°64°+4°
- ThursdayJul 9Light Drizzle10%—90°67°+16°
- FridayJul 10Overcast44%—92°73°+2°
AQI 84 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.0 µg/m³, PM10 at 10.4 µg/m³ — typical background levels with no transport signature.
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 51. Overcast through the UV peak window (cloud cover ~71%) — afternoon ozone should stay flat.
- Present
- AQI 51
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
PM × Wind × Precip
PM2.5 at 10.0 µg/m³, PM10 at 10.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.96
- Wind
- light
- 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
- 11:24 PM
- Moonset
- 11:17 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Reisterstown at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21136
16-Day Forecast — Reisterstown
- Sat98°78°47%
- Sun93°73°53%
- Mon83°69°85%
- Tue70°68°85%
- Wed74°64°33%
- Thu90°67°10%
- Fri92°73°44%
- Sat82°67°32%
- Sun78°66°27%
- Mon83°61°18%
- Tue88°64°16%
- Wed86°67°35%
- Thu86°65°46%
- Fri89°68°46%
- Sat86°71°40%
- Sun84°69°52%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Reisterstown
SPC has placed Reisterstown in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight 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 Reisterstown
- 21117
- 21136