Normal weather for Illinois in March
It's cool in March in Illinois with an average temperature of 10°C. Temperatures this month range from a low of 5°C to a high of 15°C. At night, you can expect temperatures between -5°C and 4°C.
In March, there is an average of 70 mm of precipitation, spread over 10 days. Of the total precipitation, about 6,6 cm falls as snow in March. The wind speed is around 4 Bft, mostly coming from the South.
Illinois in March |
New York | ||
|---|---|---|---|
 Average Temperature |
10°C | 11°C | |
 High Temp |
15°C | 14°C | |
| Low Temp |
5°C | 6°C | |
 Total Precipitation |
70 mm | 63 mm | |
| Rainy Days |
10 days | 10 days | |
 Total Snowfall |
6,6 cm | 7 cm | |
| Snowy Days |
4 days | 4 days | |
Start of March
The month of March starts in Illinois with cold temps, averaging around 9°C during the day and nights around -1°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers. During the day, wear a thick jacket, sweater, and long pants. For the evening and morning, we recommend a heavy winter coat, sweater, long pants, beanie, and gloves.
Mid March
By mid-March, daytime temps rise to around 11°C, with nights around 1°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
Since it cools down at night, it’s a good idea to wear layers. During the day, go for a warm jacket, sweater or hoodie, and long pants. For the evening and morning, we recommend a heavy winter coat, sweater, long pants, beanie, and gloves.
End of March
By the end of March, the average daytime temperature in Illinois is around 12°C, while nighttime temps are about 3°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Because temperatures drop in the evening, wearing layers is recommended. During the day, go for a warm jacket, sweater or hoodie, and long pants. For the evening and morning, we recommend a thick jacket, sweater, and long pants.
Find affordable vacations to Illinois 
UV index
The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Temperature records for Illinois in March
Check out the climate of Illinois for all months and discover the best travel time
The climate in Illinois is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Illinois to get the full picture of the climate.
February
Plan your next vacation
Don’t miss the best vacation deals for Illinois and see what our partners have for you.
Daily Temperature in March in Illinois
This chart shows the average daily high and low temperatures in March for Illinois, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in March in Illinois
The chart below shows the average daily precipitation in March for Illinois, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for March, you can expect about 10 days of precipitation in Illinois.
Daily Snowfall in March in Illinois
This chart shows the average daily snowfall in March in Illinois, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in March.
Daily UV Index in March in Illinois
This chart shows the average daily UV index in March in Illinois, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in March in Illinois Over the Years
This chart shows the average temperature in March in Illinois, measured in degrees Celsius, over the past few years.
Total Precipitation in March in Illinois Over the Years
This chart shows the average precipitation in March in Illinois, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in March in Illinois per year
This chart shows the average snowfall in March in Illinois, measured in centimeters, over the past few years.
Daily Climate in March for Illinois
Click on any day in March to get detailed info about the usual weather on that day in Illinois. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in March in Illinois
Have you been to Illinois in March?
Share your weather experience in March in Illinois.
Average Weather in Illinois by Month
Click on a month below to see detailed weather info for Illinois. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
