Peoria County (Peoria)
May
Weather in Peoria County, Illinois for May 2027
Your guide to Peoria County weather in May - trends and predictions
In general, the average temperature in Peoria County at the beginning of May is 18.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 23 °C by the end of May.
The climate of Peoria County in May is notably wet, with an average of 12 rainy days, and a total of 170.7 mm of precipitation.
Is May a good time to visit Peoria County? check out the best time to travel to Peoria County page.
✨ Is May a good time to visit Peoria County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
21°/12°
Temperatures
21 km/h
Avg max wind
72 %
Avg humidity
Peoria County Weather May
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Temperatures trend during May in Peoria County
See the weather trend as well as the moving average line
May weather in Peoria County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Heavy rain | 18° /11° | 27 mm | 6 | |
| May 2 |  Light rain | 18° /9° | 3.5 mm | 6 | |
| May 3 |  Overcast | 18° /10° | 0.1 mm | 5 | |
| May 4 | Light rain | 19° /10° | 6.3 mm | 6 | |
| May 5 | Overcast | 16° /9° | 0.1 mm | 5 | |
| May 6 | Overcast | 18° /9° | 0 mm | 5 | |
| May 7 |  Patchy light rain with thunder | 21° /11° | 7.4 mm | 6 | |
| May 8 |  Light rain shower | 18° /10° | 1.4 mm | 4 | |
| May 9 | Patchy rain possible | 19° /7° | 0.6 mm | 6 | |
| May 10 | Patchy rain possible | 20° /9° | 0 mm | 7 | |
| May 11 |  Partly cloudy | 21° /9° | 0.2 mm | 7 | |
| May 12 | Patchy rain possible | 24° /11° | 1 mm | 6 | |
| May 13 |  Moderate rain | 20° /14° | 12.1 mm | 6 | |
| May 14 | Light rain shower | 21° /11° | 0.6 mm | 7 | |
| May 15 | Patchy rain possible | 23° /14° | 1.4 mm | 5 | |
| May 16 | Heavy rain | 25° /15° | 32 mm | 6 | |
| May 17 | Light rain | 23° /15° | 3.1 mm | 7 | |
| May 18 | Light rain | 24° /14° | 4.2 mm | 6 | |
| May 19 | Patchy light rain with thunder | 23° /14° | 23.1 mm | 5 | |
| May 20 | Patchy light rain with thunder | 21° /13° | 18.3 mm | 7 | |
| May 21 | Patchy light rain with thunder | 22° /14° | 8.4 mm | 5 | |
| May 22 | Overcast | 19° /11° | 0.3 mm | 6 | |
| May 23 |  Sunny | 22° /12° | 0.3 mm | 4 | |
| May 24 |  Moderate or heavy rain with thunder | 24° /14° | 7.6 mm | 7 | |
| May 25 | Overcast | 21° /12° | 0 mm | 6 | |
| May 26 | Moderate or heavy rain with thunder | 23° /12° | 5 mm | 7 | |
| May 27 | Patchy rain possible | 23° /13° | 0.9 mm | 6 | |
| May 28 | Patchy light drizzle | 22° /14° | 0.4 mm | 6 | |
| May 29 | Patchy rain possible | 21° /11° | 0 mm | 7 | |
| May 30 | Sunny | 26° /13° | 0 mm | 7 | |
| May 31 | Light rain | 25° /15° | 5.2 mm | 7 | |
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Important Notice
Our weather forecast for Peoria County in May 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 Peoria County forecast closer to your planned date for the most up-to-date weather information.
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Peoria County in May - FAQ
What are the expected maximum and minimum temperatures in Peoria County during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Peoria County during May?
Significant rainfall exceeding 170.7 mm is expected in Peoria County during May, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Peoria County during May?
The average wind speed in Peoria County during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Peoria County
Explore the daily rainfall trends and prepare for Peoria Countys May weather 💧
Typically, Peoria County has 12 rainy days in May with a total of 170.7 mm of rainfall.
UV exposure in Peoria County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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