Riva, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riva, a community in Anne Arundel County, Maryland.
Overnight
53°F
Mostly Clear
Mostly clear, with a low around 53. South wind around 3 mph.
7-day forecast for Riva
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Mostly Clear | 3 mph S | 2% |
| Wednesday | 74°F | Mostly Sunny | 2 to 9 mph S | 3% |
| Wednesday Night | 62°F | Mostly Cloudy then Patchy Fog | 8 mph S | 12% |
| Thursday | 75°F | Chance Light Rain | 6 to 9 mph S | 37% |
| Thursday Night | 63°F | Light Rain Likely | 2 to 7 mph S | 66% |
| Friday | 71°F | Rain | 6 mph S | 79% |
| Friday Night | 51°F | Light Rain | 2 to 6 mph NW | 79% |
| Saturday | 66°F | Mostly Sunny | 6 to 10 mph NW | 11% |
| Saturday Night | 43°F | Partly Cloudy | 8 mph NW | 11% |
| Sunday | 62°F | Mostly Sunny | 8 mph W | 5% |
| Sunday Night | 43°F | Partly Cloudy then Slight Chance Light Rain | 5 to 8 mph W | 20% |
| Monday | 62°F | Slight Chance Light Rain | 9 to 13 mph W | 20% |
| Monday Night | 40°F | Slight Chance Light Rain | 6 to 9 mph W | 19% |
| Tuesday | 64°F | Sunny | 8 to 12 mph W | 14% |
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 4, 2026.