Best time to visit Littleton, IL

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

The most comfortable travel window in Littleton runs from July through October — 4 months of pleasant temperatures and modest rainfall.

January Cold
High
32.9°F
Low
17.0°F
Precip
1.78 in

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

Daylight ≈ 9h 26m

February Cold
High
38.1°F
Low
21.0°F
Precip
2.09 in

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

Daylight ≈ 10h 28m

March Cool
High
49.8°F
Low
30.7°F
Precip
2.60 in

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

Daylight ≈ 11h 44m

April Good
High
62.3°F
Low
41.5°F
Precip
3.88 in

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

Daylight ≈ 13h 5m

May Wet
High
72.2°F
Low
52.4°F
Precip
5.33 in

Frequent rain. Bring waterproof gear; outdoor plans need flexibility.

Daylight ≈ 14h 14m

June Wet
High
81.0°F
Low
61.6°F
Precip
5.01 in

Frequent rain. Bring waterproof gear; outdoor plans need flexibility.

Daylight ≈ 14h 49m

July Good
High
84.5°F
Low
65.2°F
Precip
4.03 in

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

Daylight ≈ 14h 36m

August Good
High
83.2°F
Low
63.1°F
Precip
3.75 in

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

Daylight ≈ 13h 36m

September Excellent
High
77.0°F
Low
55.3°F
Precip
3.92 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
64.8°F
Low
43.6°F
Precip
3.43 in

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

Daylight ≈ 10h 54m

November Cool
High
50.3°F
Low
32.5°F
Precip
2.67 in

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

Daylight ≈ 9h 43m

December Cold
High
38.5°F
Low
22.8°F
Precip
2.41 in

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

Daylight ≈ 9h 9m

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