Sylvan Weather Forecast
- 64
- 92
Chance Thunderstorms
- 62
- 86
Mostly Sunny
- 63
- 88
Thunderstorms Likely
- 65
- 90
Chance Thunderstorms
- 65
- 86
Chance Thunderstorms
- 64
- 84
Rain Showers Likely
Today 29 Jun South Cass
Mostly cloudy this Morning, then partly sunny with a slight chance of Showers and Thunderstorms this afternoon. Warmer with Highs in the lower 90s. East Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to southeast 15 to 20 Mph with Gusts up to 30 Mph this afternoon. Chance of rain 20 percent. Heat index Values up to 104 this afternoon.
Tonight 29 Jun South Cass
Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the mid 60s. South Winds 15 to 20 Mph, becoming southwest 5 to 10 Mph after midnight. Chance of rain 50 percent. Heat index Values up to 102 early in the evening.
Sylvan Temperature Statistics
June Temperature
Brainerd - Crow Wing County Airport (13.7 miles)
Lowest 15 June, 2026
41.6 °FAverage June
64.9 °FHighest 10 June, 2026
87.7 °F
Climate (2021–2026)
Brainerd - Crow Wing County Airport (13.7 miles)
Average Low 2021–2026
34.3 °FAverage 2021–2026
44.5 °FAverage High 2021–2026
54.5 °F