Best time to visit Palmyra, IL

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

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

January Cold
High
36.1°F
Low
19.2°F
Precip
2.28 in

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

Daylight ≈ 9h 31m

February Cold
High
41.3°F
Low
23.0°F
Precip
2.09 in

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

Daylight ≈ 10h 30m

March Cool
High
52.1°F
Low
32.2°F
Precip
2.90 in

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

Daylight ≈ 11h 44m

April Good
High
65.1°F
Low
42.9°F
Precip
4.67 in

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

Daylight ≈ 13h 3m

May Good
High
74.1°F
Low
53.5°F
Precip
4.27 in

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

Daylight ≈ 14h 10m

June Good
High
82.9°F
Low
62.6°F
Precip
4.64 in

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

Daylight ≈ 14h 44m

July Good
High
86.2°F
Low
66.0°F
Precip
3.44 in

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

Daylight ≈ 14h 31m

August Good
High
85.0°F
Low
63.6°F
Precip
3.24 in

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

Daylight ≈ 13h 33m

September Excellent
High
79.2°F
Low
55.1°F
Precip
3.32 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
67.0°F
Low
43.9°F
Precip
3.31 in

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

Daylight ≈ 10h 56m

November Cool
High
52.9°F
Low
33.2°F
Precip
3.53 in

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

Daylight ≈ 9h 47m

December Cold
High
40.9°F
Low
24.6°F
Precip
2.32 in

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

Daylight ≈ 9h 14m

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