April weather forecast
Illinois, USA

April witnesses a more pronounced shift into spring across Illinois. In the north, particularly around areas adjoining Wisconsin, daytime temperatures frequently hover in the mid to upper 50s°F (around 55.4°F (13°C) to 59°F (15°C)). The southern regions, closer to the Kentucky boundary, enjoy warmer days, often reaching the mid-60s°F (around 64.4°F (18°C)).

Chicago experiences a notable transformation this month. The influence of Lake Michigan, which once intensified the cold, now moderates the warming trend, especially along the lakeshore. While snow becomes a rarity, April showers become more prevalent, revitalizing the city's parks and gardens.

Nightly lows during April remain cool but not excessively cold, generally settling between the mid-30s°F to mid-40s°F throughout the state. The lingering snow patches from March have, by this time, almost entirely disappeared, giving way to budding flora and sprouting grasslands.

Comparing April to its predecessor, March, the rise in temperatures is evident. The lengthening days and increasing sun intensity ensure that the cold vestiges of winter continue to retreat. The landscape, once dominated by bare trees and frost, slowly transitions to vibrant green hues, indicating the full arrival of spring and a prelude to the warmer embrace of May.

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• Chicago - April »
  In Chicago in April, snow falls for 2.4 days, with typically accumulated 1.61" (41mm) of snow. In Chicago in April, it is raining for 16.6 days, with typically 3.7" (94mm) of accumulated precipitation.
• Aurora - April »
  In Aurora in April, during 13.3 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. During 1.2 snowfall days, in April, Aurora aggregates 0.59" (15mm) of snow.
• Rockford - April »
  April and October, with an average relative humidity of 75%, are the least humid months in Rockford, Illinois. During 1.8 snowfall days, in April, Rockford aggregates 0.94" (24mm) of snow.
• Joliet - April »
  During 1 snowfall days, in April, Joliet aggregates 1.57" (40mm) of snow. In Joliet, during April, the rain falls for 16.3 days and regularly aggregates up to 3.62" (92mm) of precipitation.
• Naperville - April »
  On the last day of April, in Naperville sunrise is at 5:50 am and sunset at 7:49 pm CDT. During 2 snowfall days, in April, Naperville aggregates 1.26" (32mm) of snow.
• Springfield - April »
  In Springfield during April, the rain falls for 13.8 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Springfield during April, the rain falls for 13.8 days and regularly aggregates up to 2.64" (67mm) of precipitation.
• Peoria - April »
  In Peoria in April, during 13.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. During 0.5 snowfall days, in April, Peoria aggregates 0.47" (12mm) of snow.
• Elgin - April »
  In Elgin during April, the rain falls for 15.9 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Elgin, in April, during 15.9 rainfall days, 2.8" (71mm) of precipitation is typically accumulated.
• Waukegan - April »
  In Waukegan in April, during 14.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. During 2.4 snowfall days, in April, Waukegan aggregates 0.98" (25mm) of snow.
• Champaign - April »
  The month with the most rainfall in Champaign is April, when the rain falls for 13.8 days and typically aggregates up to 2.24" (57mm) of precipitation. In Champaign, in April, during 13.8 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.
• Cicero - April »
  In Cicero, Illinois, during April, the rain falls for 12.3 days and regularly aggregates up to 1.02" (26mm) of precipitation. During 1.5 snowfall days, in April, Cicero aggregates 0.55" (14mm) of snow.
• Bloomington - April »
  In Bloomington in April, during 14.6 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. During 1 snowfall days, in April, Bloomington aggregates 0.75" (19mm) of snow.