Sangamon County (Springfield)
May
Weather in Sangamon County, Illinois for May 2026
Your guide to Sangamon County weather in May - trends and predictions
In general, the average temperature in Sangamon County at the beginning of May is 20.6 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 21.6 °F by the end of May.
Sangamon County in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 193.9 mm.
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Temperatures
Rain 🌧️
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12
Dry days
19
Rainy days
0
Snow days
21°/13°
Temperatures
22 km/h
Avg max wind
75 %
Avg humidity
Sangamon County Weather May
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Temperatures trend during May in Sangamon County
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May weather in Sangamon County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Thundery outbreaks possible | 22° /15° | 27.2 mm | 5 | |
| May 2 |  Patchy rain possible | 22° /12° | 5.1 mm | 5 | |
| May 3 | Patchy rain possible | 19° /13° | 0.4 mm | 5 | |
| May 4 | Light rain shower | 17° /10° | 25.9 mm | 4 | |
| May 5 |  Overcast | 18° /9° | 0 mm | 5 | |
| May 6 |  Light drizzle | 21° /12° | 0.2 mm | 5 | |
| May 7 |  Patchy light rain with thunder | 25° /15° | 2.8 mm | 6 | |
| May 8 |  Moderate or heavy rain shower | 21° /11° | 4.2 mm | 5 | |
| May 9 | Patchy rain possible | 20° /7° | 0.1 mm | 5 | |
| May 10 |  Partly cloudy | 22° /8° | 0.1 mm | 6 | |
| May 11 |  Sunny | 23° /10° | 0.1 mm | 7 | |
| May 12 | Partly cloudy | 24° /13° | 7.3 mm | 6 | |
| May 13 | Light rain shower | 22° /15° | 5.6 mm | 5 | |
| May 14 |  Fog | 22° /12° | 2.1 mm | 5 | |
| May 15 | Patchy rain possible | 22° /16° | 0.1 mm | 5 | |
| May 16 | Light rain | 24° /15° | 6.7 mm | 6 | |
| May 17 | Light rain shower | 22° /14° | 3.4 mm | 5 | |
| May 18 | Patchy rain possible | 24° /12° | 0.1 mm | 6 | |
| May 19 | Thundery outbreaks possible | 22° /15° | 52.6 mm | 5 | |
| May 20 | Patchy light rain with thunder | 24° /15° | 23.6 mm | 6 | |
| May 21 | Patchy light rain with thunder | 23° /14° | 4.6 mm | 5 | |
| May 22 | Light rain shower | 19° /12° | 3.4 mm | 5 | |
| May 23 | Patchy rain possible | 21° /11° | 0 mm | 5 | |
| May 24 |  Moderate or heavy rain with thunder | 23° /14° | 4.2 mm | 5 | |
| May 25 | Sunny | 19° /11° | 0 mm | 5 | |
| May 26 | Moderate or heavy rain with thunder | 22° /11° | 3.3 mm | 5 | |
| May 27 | Patchy rain possible | 21° /13° | 2.8 mm | 5 | |
| May 28 | Patchy rain possible | 21° /14° | 4.6 mm | 5 | |
| May 29 | Patchy rain possible | 20° /11° | 0 mm | 5 | |
| May 30 | Sunny | 23° /12° | 0 mm | 6 | |
| May 31 | Overcast | 25° /13° | 3.5 mm | 6 | |
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Important Notice
Our weather forecast for Sangamon 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 Sangamon County forecast closer to your planned date for the most up-to-date weather information.
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Sangamon County in May - FAQ
What are the expected maximum and minimum temperatures in Sangamon County during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sangamon County during May?
Significant rainfall exceeding 193.9 mm is expected in Sangamon County during May, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sangamon County during May?
The average wind speed in Sangamon County during May is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Sangamon County
Explore the daily rainfall trends and prepare for Sangamon Countys May weather 💧
UV exposure in Sangamon County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Sangamon County?Get accurate weather forecasts for Sangamon County, located at latitude 39.802 and longitude -89.644. Stay updated with localized weather information tailored for Sangamon County.
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