Best time to visit Smithfield, IL
A month-by-month travel weather guide based on NOAA 30-year climate normals.
The most comfortable travel window in Smithfield runs from June through October — 5 months of pleasant temperatures and modest rainfall.
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 9h 25m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 10h 27m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 11h 43m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 13h 5m
Frequent rain. Bring waterproof gear; outdoor plans need flexibility.
Daylight ≈ 14h 15m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 51m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 37m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 13h 37m
Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.
Daylight ≈ 12h 15m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 10h 54m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 9h 42m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 9h 7m
Looking for similar climates? See Smithfield's climate twins. Or jump straight to the full climate profile.