Riverside, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Riverside weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle26%0.01″100°79°—
- SundayJul 5Light Drizzle55%0.02″94°75°-6°
- MondayJul 6Heavy Drizzle83%0.01″81°72°-13°
- TuesdayJul 7Thunderstorm83%—87°71°+6°
- WednesdayJul 8Drizzle31%0.05″78°66°-9°
- ThursdayJul 9Overcast15%—90°69°+12°
- FridayJul 10Overcast44%—92°73°+2°
AQI 94 (Moderate), driven by Ozone. AQI up 40 in the last 6 hours — air quality is degrading. Ozone at AQI 50. Overcast through the UV peak window (cloud cover ~100%) — 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 50. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 50
- UV peak
- 0.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
PM × Wind × Precip
PM2.5 at 8.2 µg/m³, PM10 at 8.5 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
- 10:57 PM
- Moonset
- 10:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Riverside 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.
16-Day Forecast — Riverside
- Sat100°79°26%
- Sun94°75°55%
- Mon81°72°83%
- Tue87°71°83%
- Wed78°66°31%
- Thu90°69°15%
- Fri92°73°44%
- Sat91°72°37%
- Sun82°68°28%
- Mon76°68°18%
- Tue87°65°16%
- Wed88°66°39%
- Thu92°71°36%
- Fri89°74°36%
- Sat93°73°31%
- Sun92°74°49%
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 — Riverside
SPC has placed Riverside 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 Riverside
- 21001
- 21017