Union Grove State Park Wind Forecast
Union Grove State Park Wind Statistics
September Wind
Marshalltown, Marshalltown Municipal Airport (9.9 miles)
Strongest 5 September, 2025
21.9mph NWAverage September
7.8mph
Climate (2010–Present)
Marshalltown, Marshalltown Municipal Airport (9.9 miles)
Strongest 28 July, 2023
93.1mph WNWAverage 2020–2025
10.5mph