Hart Lake Weather Forecast
- 72
- 90
Becoming Sunny
- 64
- 84
Chance Thunderstorms
- 59
- 79
Slight Chance Thunderstorms
- 63
- 86
Partly Sunny
- 62
- 84
Chance Rain Showers
- 62
- 83
Chance Thunderstorms
- 65
- 86
Chance Rain Showers
Today 5 Jul Eaton
Mostly sunny. Highs around 90. Southwest Winds 10 to 15 Mph.
Tonight 5 Jul Eaton
Mostly clear. Lows in the lower 70s. Southwest Winds 5 to 10 Mph with Gusts to around 20 Mph.
Hart Lake Temperature Statistics
July Temperature
Ionia County Airport (13.7 miles)
Lowest 3 July, 2025
60.8 °FAverage July
74.7 °FHighest 2 July, 2025
86 °F
Climate (2020–Present)
Ionia County Airport (13.7 miles)
Average Low 2020–2025
40.9 °FAverage 2020–2025
50 °FAverage High 2020–2025
58.9 °F