30 Day Long Range Weather for Peoria, Illinois. Weather Outlook for 30 Days From Today. (2025)

59 to 69 °F

41 to 51 °F

12 to 22 °C

2 to 12 °C

59 to 69 °F

39 to 49 °F

12 to 22 °C

1 to 11 °C

62 to 72 °F

40 to 50 °F

14 to 24 °C

2 to 12 °C

62 to 72 °F

41 to 51 °F

14 to 24 °C

2 to 12 °C

64 to 74 °F

41 to 51 °F

15 to 25 °C

2 to 12 °C

61 to 71 °F

41 to 51 °F

13 to 23 °C

2 to 12 °C

62 to 72 °F

38 to 48 °F

14 to 24 °C

1 to 11 °C

59 to 69 °F

38 to 48 °F

12 to 22 °C

1 to 11 °C

56 to 66 °F

38 to 48 °F

11 to 21 °C

1 to 11 °C

58 to 68 °F

37 to 47 °F

12 to 22 °C

0 to 10 °C

60 to 70 °F

38 to 48 °F

13 to 23 °C

1 to 11 °C

59 to 69 °F

37 to 47 °F

12 to 22 °C

0 to 10 °C

57 to 67 °F

34 to 44 °F

11 to 21 °C

-2 to 8 °C

57 to 67 °F

34 to 44 °F

11 to 21 °C

-2 to 8 °C

55 to 65 °F

35 to 45 °F

10 to 20 °C

-1 to 9 °C

55 to 65 °F

35 to 45 °F

10 to 20 °C

-1 to 9 °C

53 to 63 °F

35 to 45 °F

9 to 19 °C

-1 to 9 °C

52 to 62 °F

34 to 44 °F

8 to 18 °C

-2 to 8 °C

53 to 63 °F

33 to 43 °F

9 to 19 °C

-2 to 8 °C

55 to 65 °F

34 to 44 °F

10 to 20 °C

-2 to 8 °C

54 to 64 °F

35 to 45 °F

10 to 20 °C

-1 to 9 °C

52 to 62 °F

33 to 43 °F

8 to 18 °C

-2 to 8 °C

51 to 61 °F

33 to 43 °F

8 to 18 °C

-2 to 8 °C

50 to 60 °F

30 to 40 °F

7 to 17 °C

-4 to 6 °C

48 to 58 °F

28 to 38 °F

6 to 16 °C

-5 to 5 °C

44 to 54 °F

28 to 38 °F

4 to 14 °C

-5 to 5 °C

43 to 53 °F

27 to 37 °F

3 to 13 °C

-5 to 5 °C

44 to 54 °F

27 to 37 °F

4 to 14 °C

-5 to 5 °C

45 to 55 °F

26 to 36 °F

5 to 15 °C

-5 to 5 °C

47 to 57 °F

28 to 38 °F

6 to 16 °C

-5 to 5 °C