Best time to visit Castana, IA

A month-by-month travel weather guide based on NOAA 30-year climate normals.

The most comfortable travel window in Castana runs from May through October — 6 months of pleasant temperatures and modest rainfall.

January Cold
High
28.6°F
Low
10.3°F
Precip
0.63 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 9h 15m

February Cold
High
33.4°F
Low
14.3°F
Precip
0.71 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 10h 22m

March Cool
High
46.8°F
Low
25.5°F
Precip
1.69 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 11h 43m

April Cool
High
59.8°F
Low
36.6°F
Precip
3.32 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 13h 9m

May Good
High
70.6°F
Low
49.4°F
Precip
4.66 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 23m

June Good
High
80.2°F
Low
59.7°F
Precip
4.84 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 15h 1m

July Good
High
83.7°F
Low
63.7°F
Precip
4.02 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 47m

August Good
High
81.6°F
Low
61.1°F
Precip
4.23 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 13h 42m

September Excellent
High
75.3°F
Low
52.6°F
Precip
3.05 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 12h 16m

October Good
High
62.7°F
Low
39.6°F
Precip
2.43 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 10h 50m

November Cool
High
46.5°F
Low
26.3°F
Precip
1.50 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 9h 34m

December Cold
High
33.0°F
Low
16.1°F
Precip
1.03 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 8h 57m

Looking for similar climates? See Castana's climate twins. Or jump straight to the full climate profile.