Sy Lake Weather Forecast
- 61
- 75
Increasing Clouds
- 71
- 79
Slight Chance Thunderstorms
- 75
- 90
Partly Sunny
- 68
- 89
Rain Showers Likely
- 65
- 82
Partly Sunny
- 68
- 83
Slight Chance Thunderstorms
- 69
- 87
Mostly Sunny
Today 21 Jul Manitowoc
Mostly sunny. Temperatures in the lower to mid 70s. East wind 5 to 10 Mph.
Tonight 21 Jul Manitowoc
Partly cloudy. Nearly steady temperature in the lower 60s. Light and variable wind becoming southeast 5 to 10 Mph after midnight.
Sy Lake Temperature Statistics
July Temperature
Sheboygan County Memorial Airport (13 miles)
Lowest 18 July, 2025
49.6 °FAverage July
70.5 °FHighest 5 July, 2025
90.6 °F
Climate (2020–Present)
Sheboygan County Memorial Airport (13 miles)
Average Low 2020–2025
39.4 °FAverage 2020–2025
48.4 °FAverage High 2020–2025
57.2 °F