February weather forecast
Illinois, USA

February in Illinois marks the tail end of the winter season, yet it retains its frigid grip across the state. Northern areas, especially those proximate to the Wisconsin boundary, continue to grapple with cold conditions, with temperatures commonly resting just a few degrees above freezing during the day. The southern zones, closer to the Kentucky frontier, while still cold, are comparatively milder.

The city of Chicago remains a focal point for February's climatic patterns. Situated on the shores of Lake Michigan, the city frequently witnesses lake effect snow, although its intensity typically wanes as the month progresses. This phenomenon ensures that Chicago and its nearby locales receive a more substantial snow blanket than other parts of Illinois.

Nighttime readings during February are still stringent, especially in the northern sectors, often dipping below 0°F (-17.8°C). The snow mantle persists throughout the state, but there's a slight reduction in its overall depth compared to January, ranging from around 10" (254mm) in the southern regions to approximately 30" (762mm) in the north.

Transitioning from January, February shows a slight uptick in average temperatures, signaling the gradual approach of spring. While still wintry, the latter half of February can sometimes offer glimpses of milder weather, setting the stage for the more temperate conditions expected in March.

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• Chicago - February »
  The month with the most snowfall in Chicago, Illinois, is February, when snow falls for 9.9 days and typically aggregates up to 3.54" (90mm) of snow. In Chicago, in February, during 9.9 snowfall days, 3.54" (90mm) of snow is typically accumulated.
• Aurora - February »
  In Aurora in February, snow falls for 8.5 days, with typically accumulated 1.14" (29mm) of snow. In Aurora, in February, during 8.5 snowfall days, 1.14" (29mm) of snow is typically accumulated.
• Rockford - February »
  The month with the least rainfall in Rockford is February, when the rain falls for 4.3 days and typically collects 1.26" (32mm) of precipitation. In Rockford, Illinois, during February, the rain falls for 4.3 days and regularly aggregates up to 1.26" (32mm) of precipitation.
• Joliet - February »
  In Joliet, Illinois, during February, the rain falls for 5.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. As February unfolds in Joliet the average high-temperature reaches an icy 33.4°F (0.8°C), hinting at a slight fluctuation from the previous month.
• Naperville - February »
  In Naperville, in February, during 9.1 snowfall days, 1.69" (43mm) of snow is typically accumulated. In Naperville, in February, during 9.1 snowfall days, 1.69" (43mm) of snow is typically accumulated.
• Springfield - February »
  In Springfield in February, snow falls for 7.2 days, with typically accumulated 2.13" (54mm) of snow. In Springfield in February, during 7.2 snowfall days, 2.13" (54mm) of snow is typically accumulated.
• Peoria - February »
  In Peoria, in February, during 6.8 snowfall days, 1.57" (40mm) of snow is typically accumulated. In Peoria, in February, during 6.8 snowfall days, 1.57" (40mm) of snow is typically accumulated.
• Elgin - February »
  In Elgin during February, the rain falls for 4.9 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Elgin, during February, the rain falls for 4.9 days and regularly aggregates up to 1.34" (34mm) of precipitation.
• Waukegan - February »
  In Waukegan in February, during 9.8 snowfall days, 2.6" (66mm) of snow is typically accumulated. In Waukegan in February, it is raining for 5.2 days, with typically 1.06" (27mm) of accumulated precipitation.
• Champaign - February »
  In Champaign, in February, snow falls for 7 days, with typically accumulated 1.77" (45mm) of snow. The months with the lowest UV index in Champaign are January, February, November and December, with an average maximum UV index of 2.
• Cicero - February »
  The month with the most snowfall in Cicero is February, when snow falls for 8.8 days and typically aggregates up to 1.54" (39mm) of snow. In Cicero, in February, during 8.8 snowfall days, 1.54" (39mm) of snow is typically accumulated.
• Bloomington - February »
  In Bloomington, in February, during 7.8 snowfall days, 2.13" (54mm) of snow is typically accumulated. In Bloomington, Illinois, in February, during 5.3 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.