Potomac River - Kaywood Point Weather Forecast
- 30
- 56
Rain Showers
- 31
- 38
Mostly Sunny
- 32
- 43
Mostly Cloudy
- 27
- 36
Mostly Cloudy
- 32
- 38
Partly Sunny
- 32
- 40
Chance Rain
Today 29 Dec St. Marys
Cloudy with a chance of rain in the Morning, then mostly sunny with a slight chance of rain in the afternoon. Windy with Highs in the lower 60s. Temperature falling into the upper 40s in the afternoon. Southwest Winds 15 to 25 Mph, becoming west 25 to 30 Mph with Gusts up to 45 Mph in the afternoon. Chance of rain 50 percent.
Tonight 29 Dec St. Marys
Cloudy with a 20 percent chance of rain. Lows in the lower 40s. Temperature rising into the lower 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.
Potomac River - Kaywood Point Temperature Statistics
December Temperature
St Marys County Airport (9.9 miles)
Lowest 15 December, 2025
14.9 °FAverage December
37 °FHighest 19 December, 2025
59.4 °F
Climate (2020–Present)
St Marys County Airport (9.9 miles)
Average Low 2020–2025
49.5 °FAverage 2020–2025
58 °FAverage High 2020–2025
66.7 °F