Best time to visit Franklin, IL

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

The most comfortable travel window in Franklin runs from April through October — 7 months of pleasant temperatures and modest rainfall.

January Cold
High
36.0°F
Low
18.1°F
Precip
1.93 in

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

Daylight ≈ 9h 30m

February Cold
High
41.1°F
Low
21.4°F
Precip
1.72 in

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

Daylight ≈ 10h 30m

March Cool
High
52.4°F
Low
30.1°F
Precip
2.81 in

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

Daylight ≈ 11h 44m

April Good
High
64.9°F
Low
40.3°F
Precip
4.27 in

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

Daylight ≈ 13h 3m

May Good
High
74.8°F
Low
51.7°F
Precip
4.82 in

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

Daylight ≈ 14h 11m

June Good
High
83.3°F
Low
60.8°F
Precip
4.89 in

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

Daylight ≈ 14h 45m

July Good
High
86.5°F
Low
64.0°F
Precip
3.96 in

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

Daylight ≈ 14h 32m

August Good
High
85.2°F
Low
61.7°F
Precip
3.39 in

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

Daylight ≈ 13h 34m

September Excellent
High
80.0°F
Low
53.5°F
Precip
3.50 in

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

Daylight ≈ 12h 15m

October Good
High
67.7°F
Low
42.3°F
Precip
2.97 in

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

Daylight ≈ 10h 56m

November Cool
High
53.0°F
Low
31.9°F
Precip
3.01 in

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

Daylight ≈ 9h 46m

December Cold
High
41.2°F
Low
23.3°F
Precip
1.98 in

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

Daylight ≈ 9h 13m

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