Rockford (IL)
May
Weather in Rockford, Illinois for May 2027
Your guide to Rockford weather in May - trends and predictions
In general, the average temperature in Rockford at the beginning of May is 16.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.9 °C by the end of May.
Rockford experiences moderate rainfall in May, with an average of 10 rainy days and a total precipitation of 129.3 mm.
Is May a good time to visit Rockford? check out the best time to travel to Rockford page.
✨ Is May a good time to visit Rockford? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
21
Dry days
10
Rainy days
0
Snow days
20°/9°
Temperatures
21 km/h
Avg max wind
71 %
Avg humidity
Rockford Weather May
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Temperatures trend during May in Rockford
See the weather trend as well as the moving average line
May weather in Rockford day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Moderate rain | 14° /8° | 11.9 mm | 5 | |
| May 2 |  Light rain | 16° /6° | 9.2 mm | 6 | |
| May 3 |  Patchy rain possible | 17° /8° | 1.6 mm | 4 | |
| May 4 | Light rain | 19° /7° | 2.7 mm | 6 | |
| May 5 |  Overcast | 14° /7° | 0.1 mm | 5 | |
| May 6 |  Sunny | 17° /7° | 0 mm | 6 | |
| May 7 | Light rain | 19° /8° | 2.9 mm | 5 | |
| May 8 | Overcast | 19° /8° | 0.5 mm | 6 | |
| May 9 | Light rain | 17° /6° | 3.5 mm | 6 | |
| May 10 |  Partly cloudy | 19° /6° | 0.6 mm | 7 | |
| May 11 | Patchy rain possible | 19° /6° | 0 mm | 7 | |
| May 12 | Patchy rain possible | 24° /8° | 1.1 mm | 6 | |
| May 13 | Light rain | 20° /13° | 5.9 mm | 6 | |
| May 14 | Overcast | 20° /9° | 0 mm | 6 | |
| May 15 | Patchy rain possible | 24° /12° | 1.9 mm | 5 | |
| May 16 | Light rain | 26° /14° | 7.2 mm | 6 | |
| May 17 | Patchy rain possible | 22° /13° | 1 mm | 5 | |
| May 18 | Patchy rain possible | 22° /13° | 2.1 mm | 6 | |
| May 19 |  Thundery outbreaks possible | 21° /11° | 16.4 mm | 5 | |
| May 20 |  Heavy rain | 16° /6° | 27.8 mm | 6 | |
| May 21 | Light rain | 16° /9° | 9.8 mm | 4 | |
| May 22 |  Cloudy | 20° /10° | 0 mm | 6 | |
| May 23 | Overcast | 23° /11° | 0.4 mm | 5 | |
| May 24 | Light rain | 22° /11° | 2.6 mm | 6 | |
| May 25 | Partly cloudy | 21° /9° | 0 mm | 6 | |
| May 26 | Light rain | 23° /10° | 2.9 mm | 6 | |
| May 27 | Light rain | 23° /11° | 2.9 mm | 6 | |
| May 28 | Moderate rain | 21° /10° | 12.6 mm | 6 | |
| May 29 | Patchy rain possible | 23° /10° | 1.2 mm | 7 | |
| May 30 | Sunny | 25° /11° | 0 mm | 7 | |
| May 31 | Patchy rain possible | 26° /12° | 0.2 mm | 7 | |
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Important Notice
Our weather forecast for Rockford 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 Rockford forecast closer to your planned date for the most up-to-date weather information.
Change Month
Rockford in May - FAQ
What are the expected maximum and minimum temperatures in Rockford during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Rockford during May?
Significant rainfall exceeding 129.3 mm is expected in Rockford during May, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Rockford during May?
The average wind speed in Rockford during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Rockford
Explore the daily rainfall trends and prepare for Rockfords May weather 💧
Typically, Rockford has 10 rainy days in May with a total of 129.3 mm of rainfall.
UV exposure in Rockford during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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