Grand Lake St. Marys SPB Weather Forecast
- 53
- 76
Mostly Sunny
- 51
- 69
Mostly Sunny
- 59
- 77
Mostly Sunny
- 65
- 82
Partly Sunny
- 70
- 88
Slight Chance Thunderstorms
- 66
- 88
Slight Chance Thunderstorms
Today 9 Jun Mercer
Mostly sunny. Highs in the upper 70s. Northwest Winds 5 to 10 Mph, increasing to 15 to 20 Mph with Gusts up to 30 Mph in the afternoon.
Tonight 9 Jun Mercer
Mostly clear. Lows in the lower 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to around 5 Mph after midnight.
Grand Lake St. Marys SPB Temperature Statistics
June Temperature
Versailles Darke County Airport (23 miles)
Lowest 1 June, 2024
51.8 °FAverage June
70.8 °FHighest 4 June, 2024
86 °F
Climate (2019–Present)
Versailles Darke County Airport (23 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
43.3 °FAverage 2019–2024
52.3 °FAverage High 2019–2024
61.5 °F