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Weather in Winnebago County, Illinois for April 2026

Your guide to Winnebago County weather in April - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Winnebago County usually enjoys a light touch of snow in April.
    According to Winnebago County snow forecast for April 2026, no snow is expected at the beginning of the month.

    • Temperatures

  • An exceptional deviation from the historical average is forecasted for first days of April 2026 in Winnebago County with the forecasted temperature being 15.4 °F, much lower than usual.

  • In general, the average temperature in Winnebago County at the beginning of April is 14.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.6 °F by the end of April.

    • Rain 🌧️

  • Winnebago County in April brings notable rainfall, with an average of 16 rainy days and a total precipitation of 123.7 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
11
Dry days
Average rainy days
16
Rainy days
Average snowy days
3
Snow days
Average temperatures
14°/5°
Temperatures
Average wind speed
27 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Winnebago County Weather April

Move between months or click on a day
March
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
23°
2
Patchy rain possible
19°
3
Patchy rain possible
25°
4
Light snow showers
10°
5
Patchy rain possible
8°
6
Sunny
12°
7
Moderate rain
5°
8
Partly cloudy
11°
9
Partly cloudy
9°
10
Partly cloudy
12°
11
Light rain shower
12°
12
Light rain
13°
13
Sunny
18°
14
Sunny
18°
15
Sunny
17°
16
Light rain shower
13°
17
Light rain shower
17°
18
Light rain
15°
19
Overcast
12°
20
Patchy rain possible
9°
21
Partly cloudy
13°
22
Overcast
20°
23
Patchy rain possible
19°
24
Partly cloudy
18°
25
Sunny
13°
26
Moderate rain
15°
27
Thundery outbreaks possible
22°
28
Moderate or heavy rain shower
24°
29
Patchy rain possible
20°
30
Sunny
18°

Temperatures trend during April in Winnebago County

See the weather trend as well as the moving average line

April weather in Winnebago County day by day

Click on a date for more information
March May
Date Weather Temperatures Rain Snow More
Apr. 1 Patchy rain possible
Patchy rain possible
 23° /15° 0.2 mm 0 cm
Apr. 2 Patchy rain possible
Patchy rain possible
 19° /9° 3.2 mm 0 cm
Apr. 3 Patchy rain possible
Patchy rain possible
 25° /12° 0.7 mm 0 cm
Apr. 4 Light snow showers
Light snow showers
 10° /3° 14.1 mm 0.6 cm
Apr. 5 Patchy rain possible
Patchy rain possible
 8° /1° 1.5 mm 0 cm
Apr. 6 Sunny
Sunny
 12° /-1° 0 mm 0 cm
Apr. 7 Moderate rain
Moderate rain
 5° /1° 3.7 mm 0 cm
Apr. 8 Partly cloudy
Partly cloudy
 11° /1° 0.2 mm 0 cm
Apr. 9 Partly cloudy
Partly cloudy
 9° /4° 4.5 mm 0 cm
Apr. 10 Partly cloudy
Partly cloudy
 12° /3° 0 mm 0 cm
Apr. 11 Light rain shower
Light rain shower
 12° /4° 2.4 mm 0 cm
Apr. 12 Light rain
Light rain
 13° /4° 3.4 mm 0 cm
Apr. 13 Sunny
Sunny
 18° /5° 0 mm 0 cm
Apr. 14 Sunny
Sunny
 18° /9° 0 mm 0 cm
Apr. 15 Sunny
Sunny
 17° /6° 0 mm 0 cm
Apr. 16 Light rain shower
Light rain shower
 13° /4° 17.4 mm 0 cm
Apr. 17 Light rain shower
Light rain shower
 17° /6° 2.5 mm 0 cm
Apr. 18 Light rain
Light rain
 15° /8° 0.8 mm 0 cm
Apr. 19 Overcast
Overcast
 12° /5° 0 mm 0 cm
Apr. 20 Patchy rain possible
Patchy rain possible
 9° /4° 0 mm 0 cm
Apr. 21 Partly cloudy
Partly cloudy
 13° /3° 10 mm 0 cm
Apr. 22 Overcast
Overcast
 20° /4° 2.3 mm 0 cm
Apr. 23 Patchy rain possible
Patchy rain possible
 19° /9° 0.3 mm 0 cm
Apr. 24 Partly cloudy
Partly cloudy
 18° /6° 0 mm 0 cm
Apr. 25 Sunny
Sunny
 13° /3° 1.5 mm 0 cm
Apr. 26 Moderate rain
Moderate rain
 15° /3° 6.7 mm 0 cm
Apr. 27 Thundery outbreaks possible
Thundery outbreaks possible
 22° /8° 2.8 mm 0 cm
Apr. 28 Moderate or heavy rain shower
Moderate or heavy rain shower
 24° /13° 12.4 mm 0 cm
Apr. 29 Patchy rain possible
Patchy rain possible
 20° /10° 5.5 mm 0 cm
Apr. 30 Sunny
Sunny
 18° /5° 3.6 mm 0 cm
Next
Important Notice
Our weather forecast for Winnebago County in April 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.
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Winnebago County in April - FAQ

What are the expected maximum and minimum temperatures in Winnebago County during April?

During April, expect a variety of temperatures with highs around 14° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in Winnebago County during April?

Significant rainfall exceeding 123.7 mm is expected in Winnebago County during April, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Winnebago County in April 2026?

Winnebago County experiences an average snowfall of 1.11 cm during April, occurring over 3 days.

What are the typical wind conditions in Winnebago County during April?

The average wind speed in Winnebago County during April is 27 km/h, suggesting breezy to windy conditions, depending on your activities.

Winnebago County snow forecast April 2026

Track daily snowfall levels and discover Winnebago County’s snowy potential this April ❄️
On average, Winnebago County sees 3 snowy days during April, with approximately 1.1 cm of total snowfall.

April rainfall patterns in Winnebago County

Explore the daily rainfall trends and prepare for Winnebago Countys April weather 💧
Typically, Winnebago County has 16 rainy days in April with a total of 123.7 mm of rainfall.

UV exposure in Winnebago County during April

Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
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Rockford
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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.

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