Sullivan Lake Weather Forecast
- 39
- 61
Mostly Cloudy
- 42
- 66
Partly Sunny
- 49
- 71
Mostly Sunny
- 28
- 68
Thunderstorms Likely
- 23
- 36
Chance Snow Showers
- 24
- 42
Mostly Sunny
- 36
- 53
Mostly Sunny
Today 14 Apr Morrison
Mostly cloudy. Highs in the lower 60s. Northwest Winds 5 to 10 Mph.
Tonight 14 Apr Morrison
Decreasing Clouds. Patchy fog late in the night. Lows around 40. North Winds up to 5 Mph.
Sullivan Lake Temperature Statistics
April Temperature
Brainerd - Crow Wing County Airport (19.9 miles)
Lowest 7 April, 2026
9 °FAverage April
34.2 °FHighest 12 April, 2026
79 °F
Climate (2021–Present)
Brainerd - Crow Wing County Airport (19.9 miles)
Average Low 2021–2026
34.4 °FAverage 2021–2026
44.6 °FAverage High 2021–2026
54.6 °F