Best time to visit Summit, SD
A month-by-month travel weather guide based on NOAA 30-year climate normals.
The most comfortable travel window in Summit runs from May through September — 5 months of pleasant temperatures and modest rainfall.
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 55m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 10h 10m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 11h 40m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 13h 17m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 41m
Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.
Daylight ≈ 15h 24m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 15h 8m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 13h 55m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 12h 18m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 10h 41m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 9h 16m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 33m
Looking for similar climates? See Summit's climate twins. Or jump straight to the full climate profile.