Jessup, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Jessup weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain35%0.10″101°78°—
- SundayJul 5Light Rain54%0.20″96°75°-5°
- MondayJul 6Light Showers76%—82°74°-14°
- TuesdayJul 7Thunderstorm76%0.11″90°71°+8°
- WednesdayJul 8Heavy Showers36%0.35″79°69°-11°
- ThursdayJul 9Overcast14%—92°70°+13°
- FridayJul 10Light Drizzle41%0.01″94°74°+2°
AQI 112 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 59 in the last 6 hours — air quality is degrading. Ozone at AQI 70. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 70. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 70
- UV peak
- 0.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 10.0 µg/m³, PM10 at 10.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- Wind
- windy
- 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
- 10:59 PM
- Moonset
- 10:11 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Jessup at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 20794
16-Day Forecast — Jessup
- Sat101°78°35%
- Sun96°75°54%
- Mon82°74°76%
- Tue90°71°76%
- Wed79°69°36%
- Thu92°70°14%
- Fri94°74°41%
- Sat91°71°34%
- Sun83°72°21%
- Mon80°72°19%
- Tue88°70°18%
- Wed93°73°33%
- Thu94°74°37%
- Fri92°74°42%
- Sat92°72°44%
- Sun92°74°46%
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 — Jessup
SPC has placed Jessup 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 Jessup
- 20701
- 20794