Riverdale Weather Forecast
- 65
- 82
Decreasing Clouds
- 61
- 81
Partly Sunny
- 62
- 80
Mostly Sunny
- 65
- 84
Partly Sunny
- 72
- 88
Partly Sunny
- 66
- 92
Slight Chance Thunderstorms
Today 5 Sep Anne Arundel
Mostly cloudy. A slight chance of Showers in the Morning, then a slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s. North Winds 5 to 10 Mph. Chance of rain 20 percent.
Tonight 5 Sep Anne Arundel
Partly cloudy. Lows in the mid 60s. Northeast Winds around 5 Mph.
Riverdale Temperature Statistics
September Temperature
Annapolis, United States Naval Academy (7.5 miles)
Lowest 2 September, 2026
73 °FAverage September
80.6 °FHighest 1 September, 2026
93.7 °F
Climate (2021–2026)
Annapolis, United States Naval Academy (7.5 miles)
Average Low 2021–2026
52.4 °FAverage 2021–2026
59.4 °FAverage High 2021–2026
66.4 °F