easeweather.com
Units
°C
°F
Winnebago County
Forecast Today Tomorrow
more
Illinois United States

Weather in Winnebago County for May 2025

Your guide to Winnebago County weather in May - trends and predictions
  • In general, the average temperature in Winnebago County at the beginning of May is 20.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 22.4 °F by the end of May.

  • The climate of Winnebago County in May is notably wet, with an average of 13 rainy days.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
18
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/10°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Winnebago County in May average weather

Move between months or click on a day
Select a date

You can click on date

Access Winnebago County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Got it

Temperatures trend during May in Winnebago County

See the weather trend as well as the moving average line

May weather day by day

Click on a date for more information
Date Weather Temperatures Rain UV More
May 1 Patchy rain possible
Patchy rain possible
20° /14° 0.2 mm 5
May 2 Light rain shower
Light rain shower
21° /11° 23.8 mm 5
May 3 Overcast
Overcast
20° /11° 4.4 mm 5
May 4 Light rain shower
Light rain shower
21° /9° 7 mm 5
May 5 Overcast
Overcast
17° /7° 0 mm 4
May 6 Sunny
Sunny
21° /8° 0 mm 6
May 7 Light rain shower
Light rain shower
25° /14° 5.5 mm 6
May 8 Cloudy
Cloudy
23° /13° 1.4 mm 5
May 9 Light rain shower
Light rain shower
11° /7° 10.2 mm 3
May 10 Patchy rain possible
Patchy rain possible
16° /5° 1.8 mm 4
May 11 Patchy rain possible
Patchy rain possible
17° /8° 0.1 mm 4
May 12 Sunny
Sunny
23° /9° 3 mm 6
May 13 Light rain shower
Light rain shower
20° /15° 14.1 mm 5
May 14 Overcast
Overcast
14° /7° 0 mm 3
May 15 Overcast
Overcast
18° /9° 0.1 mm 4
May 16 Light rain shower
Light rain shower
21° /10° 3.2 mm 5
May 17 Patchy rain possible
Patchy rain possible
24° /14° 0.6 mm 5
May 18 Partly cloudy
Partly cloudy
26° /14° 0 mm 7
May 19 Thundery outbreaks possible
Thundery outbreaks possible
27° /16° 41.5 mm 6
May 20 Sunny
Sunny
21° /6° 0 mm 6
May 21 Partly cloudy
Partly cloudy
22° /10° 0 mm 6
May 22 Partly cloudy
Partly cloudy
22° /12° 0.1 mm 6
May 23 Sunny
Sunny
26° /12° 0 mm 6
May 24 Cloudy
Cloudy
22° /12° 4.4 mm 5
May 25 Sunny
Sunny
20° /7° 0 mm 6
May 26 Sunny
Sunny
22° /9° 5.8 mm 6
May 27 Sunny
Sunny
22° /9° 5.8 mm 6
May 28 Partly cloudy
Partly cloudy
21° /10° 1.4 mm 6
May 29 Partly cloudy
Partly cloudy
23° /9° 0.2 mm 6
May 30 Partly cloudy
Partly cloudy
24° /10° 0 mm 7
May 31 Patchy rain possible
Patchy rain possible
25° /12° 0.4 mm 6
Next
Important Notice
Our weather forecast for Winnebago 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 Winnebago County forecast closer to your planned date for the most up-to-date weather information.

Winnebago County in May - FAQ

What are the expected maximum and minimum temperatures in Winnebago County during May?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Winnebago County during May?
Significant rainfall exceeding 126.8 mm is expected in Winnebago County during May, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Winnebago County during May?
The average wind speed in Winnebago County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Winnebago County

Explore the daily rainfall trends and prepare for Winnebago Countys May weather 💧

UV exposure in Winnebago County during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Winnebago County
Select a location for an accurate weather forecast
More Locations

Quick links

Location coordinates Where is Winnebago County?

Get accurate weather forecasts for Winnebago County, located at latitude 42.271 and longitude -89.094. Stay updated with localized weather information tailored for Winnebago County.

Found a mistake?
We appreciate your attention to details. Tell us here.