Bertha Brock Park Weather Forecast
- 61
- 77
Slight Chance Thunderstorms
- 50
- 76
Partly Sunny
- 57
- 77
Mostly Sunny
- 60
- 80
Mostly Cloudy
- 60
- 78
Chance Rain Showers
- 65
- 80
Rain Showers Likely
Today 9 Sep Ionia
Showers likely and a chance of Thunderstorms. Highs in the upper 70s. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of rain 90 percent.
Tonight 9 Sep Ionia
Partly cloudy. Lows in the lower 60s. West Winds 5 to 10 Mph. Gusts up to 25 Mph in the evening.
Bertha Brock Park Temperature Statistics
September Temperature
Ionia County Airport (3.7 miles)
Lowest 6 September, 2026
53.6 °FAverage September
72 °FHighest 2 September, 2026
93.2 °F
Climate (2021–2026)
Ionia County Airport (3.7 miles)
Average Low 2021–2026
40.9 °FAverage 2021–2026
50 °FAverage High 2021–2026
59 °F