Best time to visit Hartland, WI

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

The most comfortable travel window in Hartland runs from May through October — 6 months of pleasant temperatures and modest rainfall.

January Cold
High
27.7°F
Low
11.6°F
Precip
1.60 in

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

Daylight ≈ 9h 9m

February Cold
High
31.5°F
Low
14.6°F
Precip
1.71 in

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

Daylight ≈ 10h 18m

March Cold
High
43.0°F
Low
24.0°F
Precip
1.93 in

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

Daylight ≈ 11h 42m

April Cool
High
55.3°F
Low
34.8°F
Precip
3.65 in

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

Daylight ≈ 13h 11m

May Good
High
67.3°F
Low
45.8°F
Precip
3.97 in

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

Daylight ≈ 14h 29m

June Good
High
77.4°F
Low
55.6°F
Precip
4.88 in

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

Daylight ≈ 15h 8m

July Good
High
81.4°F
Low
60.3°F
Precip
3.99 in

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

Daylight ≈ 14h 53m

August Good
High
79.8°F
Low
58.9°F
Precip
4.18 in

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

Daylight ≈ 13h 46m

September Excellent
High
72.9°F
Low
51.1°F
Precip
3.27 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 12h 17m

October Good
High
60.0°F
Low
39.8°F
Precip
2.92 in

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

Daylight ≈ 10h 47m

November Cool
High
45.0°F
Low
28.3°F
Precip
2.15 in

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

Daylight ≈ 9h 28m

December Cold
High
33.0°F
Low
18.1°F
Precip
1.70 in

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

Daylight ≈ 8h 50m

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