Decatur (IL)
June
Weather in Decatur, Illinois for June 2025
Your guide to Decatur weather in June - trends and predictions
So far, June 2025 in Decatur is slightly warmer than the historical average by 1 °F.
The forecast for the coming days of June 2025 predicts a temperature of 29.2 °F , which is warmer than usual.
In general, the average temperature in Decatur at the beginning of June is 24.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 26.1 °F by the end of June.
The climate of Decatur in June is notably wet, with an average of 14 rainy days, and a total of 135.8 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
16
Dry days
14
Rainy days
0
Snow days
26°/17°
Temperatures
21 km/h
Avg max wind
76 %
Avg humidity
Decatur Weather June
Move between months or click on a day
Temperatures trend during June in Decatur
See the weather trend as well as the moving average line
June weather in Decatur day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jun. 1 |  Light rain shower | 22° /11° | 14.7 mm | 6 | |
| Jun. 2 |  Mist | 27° /15° | 0.1 mm | 7 | |
| Jun. 3 |  Patchy light rain with thunder | 30° /17° | 8.6 mm | 7 | |
| Jun. 4 | Light rain shower | 24° /18° | 12.6 mm | 5 | |
| Jun. 5 | Light rain shower | 24° /17° | 8.3 mm | 6 | |
| Jun. 6 | Patchy rain possible | 23° /16° | 0 mm | 5 | |
| Jun. 7 |  Partly cloudy | 23° /13° | 2.2 mm | 6 | |
| Jun. 8 |  Light drizzle | 23° /15° | 11 mm | 6 | |
| Jun. 9 |  Overcast | 24° /15° | 4.3 mm | 6 | |
| Jun. 10 |  Cloudy | 23° /11° | 0 mm | 6 | |
| Jun. 11 |  Sunny | 26° /12° | 0 mm | 7 | |
| Jun. 12 | Partly cloudy | 27° /15° | 0 mm | 7 | |
| Jun. 13 |  Thundery outbreaks possible | 26° /18° | 19.5 mm | 6 | |
| Jun. 14 | Fog | 27° /19° | 2.8 mm | 6 | |
| Jun. 15 | Partly cloudy | 26° /14° | 0 mm | 7 | |
| Jun. 16 | Overcast | 30° /20° | 0 mm | 2.4 | |
| Jun. 17 | Patchy rain possible | 32° /20° | 0.9 mm | 2.6 | |
| Jun. 18 |  Heavy rain | 34° /19° | 104.4 mm | 1.8 | |
| Jun. 19 |  Moderate rain | 26° /16° | 14.7 mm | 2.6 | |
| Jun. 20 | Partly cloudy | 27° /15° | 0 mm | 0.1 | |
| Jun. 21 | Sunny | 32° /22° | 0 mm | 7 | |
| Jun. 22 | Sunny | 33° /23° | 0 mm | 7 | |
| Jun. 23 | Patchy rain possible | 33° /24° | 0.4 mm | 6 | |
| Jun. 24 | Patchy rain possible | 32° /23° | 1 mm | 6 | |
| Jun. 25 | Patchy rain possible | 31° /21° | 1.3 mm | 6 | |
| Jun. 26 | Patchy rain possible | 23° /17° | 0 mm | 5 | |
| Jun. 27 | Partly cloudy | 23° /16° | 0 mm | 5 | |
| Jun. 28 | Sunny | 26° /14° | 0 mm | 5 | |
| Jun. 29 | Patchy rain possible | 27° /18° | 0.4 mm | 5 | |
| Jun. 30 | Sunny | 21° /12° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Decatur in June 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 June - FAQ
What are the expected maximum and minimum temperatures in Decatur during June?
During June, expect a variety of temperatures with highs around 26° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Decatur during June?
Significant rainfall exceeding 135.8 mm is expected in Decatur during June, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Decatur during June?
The average wind speed in Decatur during June is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
June rainfall patterns in Decatur
Explore the daily rainfall trends and prepare for Decaturs June weather 💧
UV exposure in Decatur during June
Stay informed about UV levels for safe outdoor activities throughout the month of June ☀️
Quick links
More Decatur weather pages
You are here
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.