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Severe weather to focus on central U.S. into the start of April. See the forecast. Chevron right
Snow and ice to kick off April from Minnesota to Maine. Get the forecast. Chevron right

Illinois, IL

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Illinois, IL Weather
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April

January February March April May June July August September October November December

2026

2025 2026 2027

Daily
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29
63°
39°
30
83°
63°
31
79°
39°
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46°
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2
69°
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69°
57°
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65°
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48°
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55°
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58°
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67°
48°
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65°
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65°
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58°
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57°
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64°
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57°
32°
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55°
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52°
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54°
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56°
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55°
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58°
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61°
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56°
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62°
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68°
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69°
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58°
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68°
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58°
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Temperature Graph

°F
70° 60° 50° 40° 30° Apr
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Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

Further Ahead

May 2026

June 2026

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Severe Weather

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Astronomy

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World North America United States Illinois Illinois

Weather Near Illinois:

  • Chicago, IL
  • Joliet, IL
  • Naperville, IL
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