Riva, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riva, a community in Anne Arundel County, Maryland.
This Afternoon
73°F
Mostly Sunny
Mostly sunny, with a high near 73. Southeast wind around 8 mph.
7-day forecast for Riva
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Sunny | 8 mph SE | 0% |
| Tonight | 62°F | Mostly Cloudy | 7 mph S | 7% |
| Thursday | 75°F | Chance Light Rain | 7 to 10 mph S | 47% |
| Thursday Night | 61°F | Light Rain Likely | 2 to 7 mph SW | 58% |
| Friday | 70°F | Chance Light Rain | 5 mph N | 54% |
| Friday Night | 49°F | Chance Light Rain then Mostly Cloudy | 1 to 7 mph N | 40% |
| Saturday | 63°F | Mostly Sunny | 8 to 13 mph NW | 6% |
| Saturday Night | 42°F | Mostly Clear | 10 mph NW | 6% |
| Sunday | 61°F | Mostly Sunny | 8 to 12 mph NW | 2% |
| Sunday Night | 41°F | Mostly Clear | 8 mph W | 0% |
| Monday | 62°F | Sunny | 8 to 12 mph W | 0% |
| Monday Night | 40°F | Mostly Clear | 3 to 7 mph W | 0% |
| Tuesday | 66°F | Sunny | 6 to 9 mph SW | 1% |
| Tuesday Night | 42°F | Mostly Clear | 3 to 7 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Riva (38.945, -76.590). Updated through the day.
Growing snapshot for Riva
Last spring frost
Mar 27
First fall frost
Nov 13
Growing season
234 days
Hardiness zone
7b
More local growing data for Riva: nearby ZIP 21140 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Annapolis Police Brks, Md (5.2 mi from Riva). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.