Best time to visit Marengo, IA
A month-by-month travel weather guide based on NOAA 30-year climate normals.
The most comfortable travel window in Marengo runs from May through October — 6 months of pleasant temperatures and modest rainfall.
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 9h 17m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 10h 22m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 11h 43m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 13h 8m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 22m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 59m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 45m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 13h 41m
Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.
Daylight ≈ 12h 16m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 10h 50m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 9h 35m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 59m
Looking for similar climates? See Marengo's climate twins. Or jump straight to the full climate profile.