Best time to visit Thebes, IL

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

The most comfortable travel window in Thebes runs from September through October — 2 months of pleasant temperatures and modest rainfall.

January Cold
High
43.0°F
Low
26.2°F
Precip
3.51 in

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

Daylight ≈ 9h 42m

February Cool
High
48.2°F
Low
29.7°F
Precip
3.31 in

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

Daylight ≈ 10h 37m

March Cool
High
58.1°F
Low
37.3°F
Precip
4.69 in

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

Daylight ≈ 11h 45m

April Wet
High
69.0°F
Low
46.8°F
Precip
5.18 in

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

Daylight ≈ 12h 58m

May Wet
High
78.1°F
Low
57.5°F
Precip
5.27 in

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

Daylight ≈ 13h 60m

June Good
High
86.6°F
Low
65.9°F
Precip
3.80 in

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

Daylight ≈ 14h 31m

July Hot
High
89.2°F
Low
69.3°F
Precip
3.87 in

Summer heat. Avoid midday exertion; aim for morning and evening activities.

Daylight ≈ 14h 19m

August Hot
High
88.3°F
Low
66.4°F
Precip
3.23 in

Summer heat. Avoid midday exertion; aim for morning and evening activities.

Daylight ≈ 13h 26m

September Good
High
81.8°F
Low
57.7°F
Precip
3.61 in

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

Daylight ≈ 12h 13m

October Good
High
70.9°F
Low
46.3°F
Precip
3.57 in

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

Daylight ≈ 11h 1m

November Cool
High
56.8°F
Low
36.7°F
Precip
4.25 in

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

Daylight ≈ 9h 58m

December Cool
High
46.3°F
Low
29.8°F
Precip
3.62 in

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

Daylight ≈ 9h 27m

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