easeweather.com
Decatur (IL)
Akron (OH)Albuquerque (NM)Alexandria (VA)Anaheim (CA)Anchorage (AK)Arlington (VA)Atlanta (GA)Atlantic City (NJ)Austin (TX)Baltimore (MD)Baton Rouge (LA)Birmingham (AL)Boston (MA)Brooklyn (NY)Buffalo (NY)Cape Coral (FL)Charlotte (NC)Chattanooga (TN)Chicago (IL)Cincinnati (OH)Cleveland (OH)Colorado Springs (CO)Columbus (OH)Corpus Christi (TX)Dallas (TX)Dayton (OH)
Decatur (IL)
Denver (CO)Des Moines (IA)Detroit (MI)El Paso (TX)Fairbanks (AK)Fayetteville (NC)Fort Lauderdale (FL)Fort Wayne (IN)Fort Worth (TX)Gatlinburg (TN)Grand Rapids (MI)Harrisburg (PA)Honolulu (HI)Houston (TX)Huntsville (AL)Indianapolis (IN)Jackson (MS)Jacksonville (FL)Juneau (AK)Kansas City (MO)Ketchikan (AK)Key West (FL)Knoxville (TN)Las Vegas (NV)Lexington (KY)Lincoln (NE)Little Rock (AR)Los Angeles (CA)Louisville (KY)Madison (WI)Manhattan (NY)Memphis (TN)Miami (FL)Milwaukee (WI)Minneapolis (MN)Mobile (AL)Montgomery (AL)Nashville (TN)New Orleans (LA)New York City (NY)Newark (NJ)Oklahoma City (OK)Omaha (NE)Orlando (FL)Philadelphia (PA)Phoenix (AZ)Pittsburgh (PA)Portland (OR)Richmond (VA)Riverside (CA)Sacramento (CA)Salt Lake City (UT)San Antonio (TX)San Diego (CA)San Francisco (CA)San Jose (CA)Savannah (GA)Seattle (WA)Sitka (AK)Skagway (AK)Springfield (MO)St. Louis (MO)St. Petersburg (FL)Tallahassee (FL)Tampa (FL)Toledo (OH)Traverse City (MI)Tulsa (OK)Tyler (TX)Vancouver (WA)Virginia Beach (VA)WashingtonWichita (KS)Winston-Salem (NC) More Locations
United States weather

Weather in Decatur, Illinois for March 2026

Your guide to Decatur weather in March - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Decatur usually enjoys a light touch of snow in March.

    • Temperatures

  • In general, the average temperature in Decatur at the beginning of March is 11.9 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 13.9 °F by the end of March.

    • Rain 🌧️

  • The climate of Decatur in March is notably wet, with an average of 14 rainy days, and a total of 171.4 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
15
Dry days
Average rainy days
14
Rainy days
Average snowy days
2
Snow days
Average temperatures
13°/4°
Temperatures
Average wind speed
28 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Decatur Weather March

Move between months or click on a day
February
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light sleet
5°
2
Mist
11°
3
Sunny
14°
4
Thundery outbreaks possible
18°
5
Light rain shower
14°
6
Partly cloudy
11°
7
Patchy rain possible
10°
8
Light rain shower
13°
9
Light drizzle
12°
10
Sunny
14°
11
Sunny
17°
12
Overcast
19°
13
Patchy rain possible
18°
14
Patchy light rain with thunder
21°
15
Overcast
16°
16
Partly cloudy
13°
17
Partly cloudy
11°
18
Overcast
12°
19
Sunny
15°
20
Sunny
8°
21
Partly cloudy
10°
22
Light rain shower
15°
23
Overcast
10°
24
Overcast
11°
25
Light rain
13°
26
Light rain shower
12°
27
Sunny
8°
28
Partly cloudy
19°
29
Overcast
17°
30
Patchy rain possible
18°
31
Light rain shower
10°

Temperatures trend during March in Decatur

See the weather trend as well as the moving average line

March weather in Decatur day by day

Click on a date for more information
February April
Date Weather Temperatures Rain Snow More
Mar. 1 Light sleet
Light sleet
 5° /-1° 0.6 mm 0 cm
Mar. 2 Mist
Mist
 11° /-1° 0 mm 0 cm
Mar. 3 Sunny
Sunny
 14° /3° 0 mm 0 cm
Mar. 4 Thundery outbreaks possible
Thundery outbreaks possible
 18° /10° 21.8 mm 0 cm
Mar. 5 Light rain shower
Light rain shower
 14° /4° 9.1 mm 1.6 cm
Mar. 6 Partly cloudy
Partly cloudy
 11° /0° 0 mm 0 cm
Mar. 7 Patchy rain possible
Patchy rain possible
 10° /4° 1.7 mm 0 cm
Mar. 8 Light rain shower
Light rain shower
 13° /4° 12.1 mm 0 cm
Mar. 9 Light drizzle
Light drizzle
 12° /0° 1.3 mm 0 cm
Mar. 10 Sunny
Sunny
 14° /0° 0 mm 0 cm
Mar. 11 Sunny
Sunny
 17° /4° 0 mm 0 cm
Mar. 12 Overcast
Overcast
 19° /3° 0.1 mm 0 cm
Mar. 13 Patchy rain possible
Patchy rain possible
 18° /8° 1.4 mm 0 cm
Mar. 14 Patchy light rain with thunder
Patchy light rain with thunder
 21° /13° 10 mm 0 cm
Mar. 15 Overcast
Overcast
 16° /9° 12.5 mm 0 cm
Mar. 16 Partly cloudy
Partly cloudy
 13° /2° 2.3 mm 1.2 cm
Mar. 17 Partly cloudy
Partly cloudy
 11° /-1° 0 mm 0 cm
Mar. 18 Overcast
Overcast
 12° /1° 0 mm 0 cm
Mar. 19 Sunny
Sunny
 15° /3° 0 mm 0 cm
Mar. 20 Sunny
Sunny
 8° /0° 0 mm 0 cm
Mar. 21 Partly cloudy
Partly cloudy
 10° /-1° 0 mm 0 cm
Mar. 22 Light rain shower
Light rain shower
 15° /3° 1.2 mm 0 cm
Mar. 23 Overcast
Overcast
 10° /2° 28 mm 0 cm
Mar. 24 Overcast
Overcast
 11° /0° 0 mm 0 cm
Mar. 25 Light rain
Light rain
 13° /6° 12.7 mm 0 cm
Mar. 26 Light rain shower
Light rain shower
 12° /2° 1.8 mm 0 cm
Mar. 27 Sunny
Sunny
 8° /2° 14.3 mm 0 cm
Mar. 28 Partly cloudy
Partly cloudy
 19° /4° 0 mm 0 cm
Mar. 29 Overcast
Overcast
 17° /10° 0.3 mm 0 cm
Mar. 30 Patchy rain possible
Patchy rain possible
 18° /13° 38 mm 0 cm
Mar. 31 Light rain shower
Light rain shower
 10° /6° 2.2 mm 0 cm
Next
Important Notice
Our weather forecast for Decatur in March is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Decatur forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Decatur in March - FAQ

What are the expected maximum and minimum temperatures in Decatur during March?
Prepare for cooler days with highs just around 13° and colder nights, dipping below 4°.
How much rainfall should be expected in Decatur during March?
Significant rainfall exceeding 171.4 mm is expected in Decatur during March, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Decatur in March 2026?
Decatur experiences an average snowfall of 2.89 cm during March, occurring over 2 days.
What are the typical wind conditions in Decatur during March?
The average wind speed in Decatur during March is 28 km/h, suggesting breezy to windy conditions, depending on your activities.

Decatur snow forecast March 2026

Track daily snowfall levels and discover Decatur’s snowy potential this March ❄️

March rainfall patterns in Decatur

Explore the daily rainfall trends and prepare for Decaturs March weather 💧

UV exposure in Decatur during March

Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️

Quick links

More Decatur weather pages
You are here
Location coordinates Where is Decatur?

Get accurate weather forecasts for Decatur, located at latitude 39.84 and longitude -88.955. Stay updated with localized weather information tailored for Decatur.

Found a mistake?
We appreciate your attention to details. Tell us here.