Climate Knoxville - Illinois

	JanJa	FebFe	MarMa	AprAp	MayMa	JunJu
Average high in ºF Av. high Hi	31	37	49	62	72	81
Average low in ºF Av. low Lo	14	19	28	39	50	61
Av. precipitation in inch Av. precip. Pre.	1.88	1.97	2.79	3.95	4.86	4.51
Av. snowfall in inch Snowfall Sn	7	6	4	0	0	0

	JulJu	AugAu	SepSe	OctOc	NovNo	DecDe
Average high in ºF Av. high Hi	84	83	76	64	49	35
Average low in ºF Av. low Lo	64	63	53	41	31	18
Av. precipitation in inch Av. precip. Pre.	4.29	4.19	3.80	3.17	2.76	2.45
Av. snowfall in inch Snowfall Sn	0	0	0	0	1	9

Knoxville Climate Graph - Illinois Climate Chart

Day	High ºF	Low ºF	Prec/mo inch	Prec/yr inch	Snow/mo inch	Snow/yr inch
1 Jan	31.3	14.3	0.08	0.08	0.20	0.50
2 Jan	31.2	14.2	0.16	0.16	0.39	1.00
3 Jan	31.1	14.1	0.20	0.20	0.59	1.50
4 Jan	31.0	14.0	0.28	0.28	0.79	2.00
5 Jan	30.9	13.9	0.35	0.35	0.98	2.50
6 Jan	30.8	13.8	0.39	0.39	1.10	2.80
7 Jan	30.8	13.8	0.47	0.47	1.42	3.60
8 Jan	30.7	13.7	0.51	0.51	1.61	4.10
9 Jan	30.7	13.7	0.59	0.59	1.81	4.60
10 Jan	30.7	13.6	0.67	0.67	2.01	5.10
11 Jan	30.6	13.6	0.71	0.71	2.09	5.30
12 Jan	30.6	13.6	0.75	0.75	2.28	5.80

Day	High ºF	Low ºF	Precip. inch	Snow inch	Snow d. inch
01 Jun	75.9	57.9	0.18	0.00	0.0
02 Jun	84.9	50.0	0.00	0.00	0.0
03 Jun	84.0	53.1	0.00	0.00	0.0
04 Jun	82.0	53.1	0.00	0.00	0.0
05 Jun	84.0	66.0	0.00	0.00	0.0
06 Jun	80.1	70.0	0.16	0.00	0.0
07 Jun	89.1	70.0	0.00	0.00	0.0
08 Jun	89.1	70.0	0.05	0.00	0.0
09 Jun	78.1	71.1	1.18	0.00	0.0
10 Jun	86.0	73.9	0.00	0.00	0.0
11 Jun	-	-	-	-	-
12 Jun	-	-	-	-	-
13 Jun	-	-	-	-	-
14 Jun	-	-	-	-	-
15 Jun	-	-	-	-	-
16 Jun	-	-	-	-	-
17 Jun	-	-	-	-	-
18 Jun	-	-	-	-	-
19 Jun	-	-	-	-	-
20 Jun	-	-	-	-	-
21 Jun	-	-	-	-	-
22 Jun	-	-	-	-	-
23 Jun	-	-	-	-	-
24 Jun	-	-	-	-	-
25 Jun	-	-	-	-	-
26 Jun	-	-	-	-	-
27 Jun	-	-	-	-	-
28 Jun	-	-	-	-	-
29 Jun	-	-	-	-	-
30 Jun	-	-	-	-	-

	Jun 26	Normal
Average high temperature Av. high temp.	83.3 ºF	31 ºF
Average low temperature Av. low temp.	63.5 ºF	14 ºF
Total precipitation Total precip.	1.57 inch	1.88 inch
Total snowfall Total snowfall	0.00 inch	7 inch

Highest max temperature Highest max temp.	89.1 ºF	-
Lowest max temperature Lowest max temp.	75.9 ºF	-
Highest min temperature Highest min temp.	73.9 ºF	-
Lowest min temperature Lowest min temp.	50.0 ºF	-

Past weather June 2026 incomplete - Missing data

USGS National Map — Open interactive map

Station Data

Monthly averages Knoxville
Longitude: -90.2849, Latitude: 40.9084
Average weather Knoxville, IL - 61448

Monthly: 1991-2020 normals
History: 2008-2026

Abbreviations

Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...