Monthly outlook for Champaign, IL: average high 66.7°, average low 50.6°. That is 2.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 13 October (87.3°), the coolest 18 October (32.4°).
66.7°/50.6°
Average high / low
+2.1°
Above normal
3 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
70.1°
64.1°
+3.4°
20 October – 29 October
61.1°
60.2°
+0.5°
30 October – 8 November
at normal
56.3°
—
October records over 66 years
88.2°7 October 2007All-time high
21.7°24 October 1981All-time low
Sun, 1178° / 56°0.01
78 °
Champaign, Sunday, 11 October
Light rain. High 78°, low 56°.
Pressure29.94 inHg
Wind4.2 mph N
Humidity56%
Visibility6.2 mi
Dew point55°
Mon, 1287° / 62°0
87 °
Champaign, Monday, 12 October
Clear. High 87°, low 62°.
Pressure29.88 inHg
Wind10.7 mph SW
Humidity42%
Visibility6.2 mi
Dew point58°
Tue, 1387° / 70°0
87 °
Champaign, Tuesday, 13 October
Clear. High 87°, low 70°.
Pressure29.85 inHg
Wind10.9 mph W
Humidity53%
Visibility6.2 mi
Dew point65°
Wed, 1472° / 60°0.04
72 °
Champaign, Wednesday, 14 October
Light rain. High 72°, low 60°.
Pressure30.03 inHg
Wind12.6 mph NE
Humidity61%
Visibility—
Dew point57°
Thu, 1569° / 54°0.06
69 °
Champaign, Thursday, 15 October
Light rain. High 69°, low 54°.
Pressure30.24 inHg
Wind11.8 mph NE
Humidity60%
Visibility—
Dew point49°
Fri, 1670° / 50°0.01
70 °
Champaign, Friday, 16 October
Light rain. High 70°, low 50°.
Pressure29.91 inHg
Wind22.7 mph W
Humidity48%
Visibility—
Dew point45°
Sat, 1746° / 38°0
46 °
Champaign, Saturday, 17 October
Overcast. High 46°, low 38°.
Pressure30.33 inHg
Wind22 mph W
Humidity52%
Visibility—
Dew point27°
Sun, 1853° / 32°0
53 °
Champaign, Sunday, 18 October
Clear. High 53°, low 32°.
Pressure30.45 inHg
Wind9 mph S
Humidity32%
Visibility—
Dew point19°
Mon, 1961° / 38°0
61 °
Champaign, Monday, 19 October
Mostly clear. High 61°, low 38°.
Pressure30.36 inHg
Wind7.8 mph S
Humidity31%
Visibility—
Dew point25°
Tue, 2065° / 47°0
65 °
Champaign, Tuesday, 20 October
Overcast. High 65°, low 47°.
Pressure30.24 inHg
Wind12.2 mph S
Humidity32%
Visibility—
Dew point31°
Wed, 2162° / 49°0.03
62 °
Champaign, Wednesday, 21 October
Light rain. High 62°, low 49°.
Pressure30.09 inHg
Wind15.8 mph S
Humidity65%
Visibility—
Dew point47°
Thu, 2261° / 53°0.81
61 °
Champaign, Thursday, 22 October
Rain. High 61°, low 53°.
Pressure29.68 inHg
Wind19.8 mph SE
Humidity88%
Visibility—
Dew point53°
Fri, 2364° / 54°0
64 °
Champaign, Friday, 23 October
Overcast. High 64°, low 54°.
Pressure29.97 inHg
Wind10.7 mph NW
Humidity74%
Visibility—
Dew point52°
Sat, 2457° / 48°0
57 °
Champaign, Saturday, 24 October
Overcast. High 57°, low 48°.
Pressure30.00 inHg
Wind16.2 mph NW
Humidity60%
Visibility—
Dew point43°
Sun, 2557° / 41°0
57 °
Champaign, Sunday, 25 October
Overcast. High 57°, low 41°.
Pressure29.94 inHg
Wind10.9 mph SW
Humidity41%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2659° / 44°0.12
59 °
Champaign, Monday, 26 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.12 in
Chance of precipitation30%
Record high81° (1963)
Record low23° (1962)
Tue, 2759° / 44°0.08
59 °
Champaign, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.08 in
Chance of precipitation33%
Record high75° (1984)
Record low31° (2001)
Wed, 2858° / 42°0.07
58 °
Champaign, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.07 in
Chance of precipitation18%
Record high76° (1999)
Record low26° (1976)
Thu, 2958° / 42°0.06
58 °
Champaign, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.06 in
Chance of precipitation22%
Record high78° (2024)
Record low25° (1980)
Fri, 3060° / 44°0.09
60 °
Champaign, Friday, 30 October
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.09 in
Chance of precipitation30%
Record high79° (1971)
Record low24° (1980)
Sat, 3159° / 45°0.17
59 °
Champaign, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.17 in
Chance of precipitation37%
Record high75° (1974)
Record low26° (1988)
Sun, 0158° / 43°0.18
58 °
Champaign, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.18 in
Chance of precipitation30%
Record high76° (2016)
Record low26° (1993)
Mon, 0257° / 42°0.1
57 °
Champaign, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.1 in
Chance of precipitation28%
Record high76° (2016)
Record low25° (1996)
Tue, 0356° / 40°0.08
56 °
Champaign, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.08 in
Chance of precipitation25%
Record high76° (1987)
Record low19° (1991)
Wed, 0455° / 42°0.09
55 °
Champaign, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1978)
Record low17° (1991)
Thu, 0555° / 40°0.11
55 °
Champaign, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation28%
Record high76° (1978)
Record low19° (1991)
Fri, 0655° / 39°0.07
55 °
Champaign, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (2020)
Record low25° (2010)
Sat, 0754° / 39°0.09
54 °
Champaign, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.09 in
Chance of precipitation22%
Record high69° (1966)
Record low19° (1991)
Sun, 0854° / 39°0.04
54 °
Champaign, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.04 in
Chance of precipitation17%
Record high76° (2023)
Record low10° (1991)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Champaign, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Champaign, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.