St Johns Weather Forecast
- 29
- 70
Rain
- 36
- 46
Chance Rain
- 28
- 55
Breezy
- 38
- 46
Mostly Cloudy
- 25
- 65
Rain/Snow Likely
Today 11 Mar Mercer
Showers with a chance of Thunderstorms. Breezy. Unseasonably warm with Highs around 70. Temperatures falling into the upper 50s in the afternoon. Southwest Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 100 percent.
Tonight 11 Mar Mercer
Mostly cloudy with a chance of Showers and Thunderstorms. Unseasonably warm. Near steady Temperatures in the mid 60s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 40 percent.
St Johns Temperature Statistics
March Temperature
Versailles Darke County Airport (14.3 miles)
Lowest 2 March, 2026
23 °FAverage March
46.3 °FHighest 6 March, 2026
75.2 °F
Climate (2021–Present)
Versailles Darke County Airport (14.3 miles)
Average Low 2021–2026
43.1 °FAverage 2021–2026
52.3 °FAverage High 2021–2026
61.6 °F