Best time to visit Sims, IL

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

The most comfortable travel window in Sims runs from May through June — 2 months of pleasant temperatures and modest rainfall.

January Cold
High
41.1°F
Low
24.5°F
Precip
3.33 in

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

Daylight ≈ 9h 36m

February Cool
High
46.5°F
Low
27.9°F
Precip
2.68 in

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

Daylight ≈ 10h 34m

March Cool
High
57.0°F
Low
36.3°F
Precip
4.22 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
46.5°F
Precip
5.00 in

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

Daylight ≈ 13h 0m

May Good
High
78.1°F
Low
55.9°F
Precip
4.98 in

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

Daylight ≈ 14h 5m

June Good
High
86.9°F
Low
64.3°F
Precip
4.70 in

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

Daylight ≈ 14h 38m

July Hot
High
89.6°F
Low
67.8°F
Precip
3.83 in

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

Daylight ≈ 14h 25m

August Hot
High
88.8°F
Low
65.6°F
Precip
3.51 in

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

Daylight ≈ 13h 30m

September Good
High
82.6°F
Low
57.9°F
Precip
2.90 in

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

Daylight ≈ 12h 14m

October Good
High
70.5°F
Low
47.0°F
Precip
3.73 in

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

Daylight ≈ 10h 58m

November Cool
High
56.1°F
Low
36.3°F
Precip
3.82 in

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

Daylight ≈ 9h 52m

December Cool
High
45.0°F
Low
28.8°F
Precip
3.30 in

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

Daylight ≈ 9h 20m

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