Typical Weather in Superior, WI in May
58° F Avg High
40° F Avg Low
7 Rainy Days
☀️ Temperature Summary
May is one of the warmer months of the year for Superior, with highs averaging around 58°F. Lows overnight are typically around 40°F. Daily high temperatures can range between 52°F and 63°F, and will often rise as the month goes on.
May is a great time to visit Superior, with mild temperatures and sunny days being very common.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
You can expect about a 23% chance of rain for any given day in May. It's one of the rainier months of the year for Superior, with total rainfall for the month around 3 inches.
Rainfall Throughout the Year
Planning a trip to Superior? Try our free trip weather planner