Peoria (IL)
May
Weather in Peoria, Illinois for May 2026
Your guide to Peoria weather in May - trends and predictions
In general, the average temperature in Peoria at the beginning of May is 19.9 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 21 °F by the end of May.
Peoria in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 145 mm.
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Temperatures
Rain 🌧️
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12
Dry days
19
Rainy days
0
Snow days
22°/13°
Temperatures
22 km/h
Avg max wind
76 %
Avg humidity
Peoria Weather May
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Temperatures trend during May in Peoria
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May weather in Peoria day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Overcast | 21° /14° | 40.3 mm | 5 | |
| May 2 |  Patchy light drizzle | 20° /11° | 5.2 mm | 5 | |
| May 3 |  Mist | 18° /12° | 0.2 mm | 5 | |
| May 4 |  Light rain shower | 17° /9° | 8.4 mm | 4 | |
| May 5 | Overcast | 18° /9° | 0 mm | 4 | |
| May 6 | Patchy rain possible | 21° /10° | 0.1 mm | 5 | |
| May 7 |  Patchy light rain with thunder | 24° /14° | 10.5 mm | 5 | |
| May 8 | Light rain shower | 20° /10° | 1.7 mm | 5 | |
| May 9 | Patchy rain possible | 17° /5° | 1 mm | 5 | |
| May 10 | Patchy rain possible | 23° /8° | 0 mm | 6 | |
| May 11 |  Partly cloudy | 23° /9° | 0.3 mm | 6 | |
| May 12 | Patchy rain possible | 24° /12° | 0.8 mm | 5 | |
| May 13 | Light rain shower | 21° /15° | 18.1 mm | 5 | |
| May 14 | Light rain shower | 22° /12° | 0.9 mm | 5 | |
| May 15 | Patchy rain possible | 23° /15° | 0.2 mm | 5 | |
| May 16 | Light rain | 24° /14° | 45.9 mm | 6 | |
| May 17 | Light rain shower | 22° /13° | 4.7 mm | 5 | |
| May 18 | Patchy rain possible | 23° /11° | 0 mm | 6 | |
| May 19 | Patchy light rain with thunder | 23° /14° | 33.4 mm | 5 | |
| May 20 | Patchy light rain with thunder | 22° /15° | 27.4 mm | 5 | |
| May 21 | Patchy light rain with thunder | 22° /14° | 8.4 mm | 5 | |
| May 22 | Light rain shower | 19° /10° | 0.5 mm | 5 | |
| May 23 |  Sunny | 22° /10° | 0 mm | 6 | |
| May 24 |  Moderate or heavy rain with thunder | 23° /13° | 10.6 mm | 6 | |
| May 25 | Overcast | 19° /10° | 0 mm | 4 | |
| May 26 | Moderate or heavy rain with thunder | 21° /10° | 7.6 mm | 5 | |
| May 27 | Patchy rain possible | 20° /12° | 1.4 mm | 5 | |
| May 28 | Patchy light drizzle | 20° /13° | 0.6 mm | 5 | |
| May 29 | Patchy rain possible | 19° /9° | 0.1 mm | 5 | |
| May 30 | Sunny | 23° /12° | 0 mm | 6 | |
| May 31 | Overcast | 25° /14° | 7.7 mm | 6 | |
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Important Notice
Our weather forecast for Peoria 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 forecast closer to your planned date for the most up-to-date weather information.
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Peoria in May - FAQ
What are the expected maximum and minimum temperatures in Peoria during May?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Peoria during May?
Significant rainfall exceeding 145 mm is expected in Peoria during May, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Peoria during May?
The average wind speed in Peoria during May is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Peoria
Explore the daily rainfall trends and prepare for Peorias May weather 💧
UV exposure in Peoria during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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