Typical Weather in Decatur;, IL in March
52° F Avg High
32° F Avg Low
6 Rainy Days
☀️ Temperature Summary
Highs in March are typically around 52°F, which is cooler than usual in Decatur;. Lows overnight are typically around 32°F. Temperatures will generally increase as the month goes on, with daily high temperatures ranging between 46°F and 59°F.
March is a great time to visit Decatur;, 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 20% chance of rain for any given day in March. It's one of the rainier months of the year for Decatur;, with total rainfall for the month around 3 inches.
Rainfall Throughout the Year
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