Best time to visit Garrett, IL

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

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

January Cold
High
34.0°F
Low
18.0°F
Precip
2.44 in

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

Daylight ≈ 9h 29m

February Cold
High
38.9°F
Low
21.0°F
Precip
2.07 in

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

Daylight ≈ 10h 29m

March Cool
High
50.3°F
Low
30.6°F
Precip
2.87 in

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

Daylight ≈ 11h 44m

April Good
High
63.5°F
Low
41.5°F
Precip
4.52 in

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

Daylight ≈ 13h 4m

May Good
High
73.8°F
Low
53.4°F
Precip
4.24 in

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

Daylight ≈ 14h 12m

June Good
High
82.4°F
Low
62.8°F
Precip
4.84 in

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

Daylight ≈ 14h 46m

July Good
High
84.9°F
Low
65.4°F
Precip
4.38 in

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

Daylight ≈ 14h 33m

August Good
High
84.0°F
Low
63.0°F
Precip
2.97 in

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

Daylight ≈ 13h 34m

September Excellent
High
78.8°F
Low
55.1°F
Precip
3.07 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
66.2°F
Low
43.4°F
Precip
3.25 in

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

Daylight ≈ 10h 55m

November Cool
High
51.2°F
Low
32.4°F
Precip
3.37 in

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

Daylight ≈ 9h 45m

December Cold
High
39.1°F
Low
23.7°F
Precip
2.53 in

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

Daylight ≈ 9h 11m

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