Chicago weather in March 2025

Expect 46°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Chicago in March. Check more long-term weather averages for Chicago in March before you book your next holiday to Illinois in 2025/2026.

  • 46°F maximum daytime temperature in March in Chicago46
    46°F max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in March in Chicago13
    13 days with some rainfall
  • 28°F minimum night-time temperature in March in Chicago28
    28°F min night temperature
  • 12 hours of daylight per day in March in Chicago12
    12 hours of daylight per day
  • No heat & humidity in March in Chicago0
    No heat & humidity
  • 2.6 inches monthly rainfall in March in Chicago2.6
    2.6 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in March in Chicago4
    4 (Moderate) UV index
  • 37°F sea temperature in March in Chicago37
    37°F sea temperature

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The March weather guide for Illinois (Chicago) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about the USA

How warm is it in Chicago in March?

Daytime temperatures usually reach 46°F in Chicago in March, falling to 28°F at night.

How sunny is it in Chicago in March?

There are normally 6 hours of bright sunshine each day in Chicago in March - that's 50% of daylight hours.

How warm is the sea around Chicago in March?

The average sea temperature around Chicago in March is 37°F.

Does it rain in Chicago in March?

There are usually 13 days with some rain in Chicago in March and the average monthly rainfall is 2.6 inches.

Chicago March sunrise & sunset times

Browse the sunrise and sunset times for Chicago in March 2025. Select a month to view Chicago sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 06:25 17:41
Sunday, 16th March 2025 06:00 17:59
Monday, 31st March 2025 05:34 18:15

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