Best time to visit New Boston, IL

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

The most comfortable travel window in New Boston runs from June through October — 5 months of pleasant temperatures and modest rainfall.

January Cold
High
31.5°F
Low
15.3°F
Precip
1.31 in

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

Daylight ≈ 9h 21m

February Cold
High
36.0°F
Low
19.0°F
Precip
1.72 in

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

Daylight ≈ 10h 25m

March Cool
High
48.6°F
Low
29.6°F
Precip
2.62 in

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

Daylight ≈ 11h 43m

April Good
High
61.9°F
Low
40.4°F
Precip
3.56 in

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

Daylight ≈ 13h 7m

May Wet
High
72.9°F
Low
51.8°F
Precip
5.05 in

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

Daylight ≈ 14h 18m

June Good
High
82.5°F
Low
61.9°F
Precip
4.59 in

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

Daylight ≈ 14h 55m

July Good
High
86.0°F
Low
65.3°F
Precip
3.52 in

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

Daylight ≈ 14h 41m

August Good
High
83.9°F
Low
62.9°F
Precip
3.83 in

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

Daylight ≈ 13h 39m

September Excellent
High
77.4°F
Low
54.5°F
Precip
3.34 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
64.3°F
Low
43.3°F
Precip
2.86 in

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

Daylight ≈ 10h 52m

November Cool
High
49.4°F
Low
31.9°F
Precip
2.13 in

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

Daylight ≈ 9h 39m

December Cold
High
36.7°F
Low
21.8°F
Precip
1.77 in

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

Daylight ≈ 9h 3m

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