Oldtown, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Oldtown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle36%0.02″98°73°—
- SundayJul 5Light Showers44%0.07″94°74°-4°
- MondayJul 6Light Drizzle77%0.01″85°69°-9°
- TuesdayJul 7Light Showers73%—93°66°+8°
- WednesdayJul 8Drizzle20%0.01″81°65°-12°
- ThursdayJul 9Overcast14%—94°62°+13°
- FridayJul 10Overcast46%—82°67°-12°
AQI 76 (Moderate), driven by Ozone. AQI up 23 in the last 6 hours — air quality is degrading. Ozone at AQI 70 — 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 70 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 70
- UV peak
- 2.1 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 70
PM × Wind × Precip
PM2.5 at 7.8 µg/m³, PM10 at 8.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.91
- 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
- 11:07 PM
- Moonset
- 10:18 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Oldtown at a glance
- Today vs. normal: 23°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: 21555
16-Day Forecast — Oldtown
- Sat98°73°36%
- Sun94°74°44%
- Mon85°69°77%
- Tue93°66°73%
- Wed81°65°20%
- Thu94°62°14%
- Fri82°67°46%
- Sat89°67°31%
- Sun82°62°24%
- Mon82°60°20%
- Tue87°57°21%
- Wed92°58°39%
- Thu93°59°30%
- Fri84°64°35%
- Sat91°67°33%
- Sun90°67°39%
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 — Oldtown
SPC has placed Oldtown 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 Oldtown
- 21555