Monthly outlook for Centerville, IL: average high 70.1°, average low 53.2°. That is 3.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.8 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 29 October (81.3°), the coolest 17 October (41.3°).
70.1°/53.2°
Average high / low
+3.6°
Above normal
3 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
68.6°
64.7°
+2.1°
26 October – 4 November
72.7°
60.7°
+6.7°
5 November – 14 November
at normal
55.9°
—
October records over 66 years
91.9°10 October 1963All-time high
28.8°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — O'Fallon (13 mi).
Sat, 1758° / 41°0
58 °
Centerville, Saturday, 17 October
Clear. High 58°, low 41°.
Pressure30.56 inHg
Wind3.1 mph NE
Humidity42%
Visibility6.2 mi
Dew point31°
Sun, 1862° / 44°0
62 °
Centerville, Sunday, 18 October
Clear. High 62°, low 44°.
Pressure30.50 inHg
Wind7.1 mph S
Humidity44%
Visibility6.2 mi
Dew point37°
Mon, 1966° / 46°0
66 °
Centerville, Monday, 19 October
Clear. High 66°, low 46°.
Pressure30.36 inHg
Wind3.5 mph S
Humidity48%
Visibility6.2 mi
Dew point43°
Tue, 2069° / 48°0
69 °
Centerville, Tuesday, 20 October
Mostly clear. High 69°, low 48°.
Pressure30.33 inHg
Wind2.5 mph SE
Humidity52%
Visibility6.2 mi
Dew point46°
Wed, 2171° / 51°0
71 °
Centerville, Wednesday, 21 October
Clear. High 71°, low 51°.
Pressure30.27 inHg
Wind4.3 mph SE
Humidity41%
Visibility—
Dew point42°
Thu, 2279° / 53°0
79 °
Centerville, Thursday, 22 October
Overcast. High 79°, low 53°.
Pressure30.12 inHg
Wind6.5 mph SW
Humidity29%
Visibility—
Dew point38°
Fri, 2378° / 58°0
78 °
Centerville, Friday, 23 October
Clear. High 78°, low 58°.
Pressure30.15 inHg
Wind7.4 mph E
Humidity35%
Visibility—
Dew point44°
Sat, 2474° / 55°0
74 °
Centerville, Saturday, 24 October
Overcast. High 74°, low 55°.
Pressure30.21 inHg
Wind9.8 mph SE
Humidity45%
Visibility—
Dew point48°
Sun, 2571° / 56°0
71 °
Centerville, Sunday, 25 October
Overcast. High 71°, low 56°.
Pressure30.15 inHg
Wind8.8 mph SE
Humidity28%
Visibility—
Dew point34°
Mon, 2679° / 55°0
79 °
Centerville, Monday, 26 October
Overcast. High 79°, low 55°.
Pressure30.09 inHg
Wind9.1 mph NW
Humidity30%
Visibility—
Dew point39°
Tue, 2768° / 54°0
68 °
Centerville, Tuesday, 27 October
Overcast. High 68°, low 54°.
Pressure30.24 inHg
Wind8.3 mph N
Humidity44%
Visibility—
Dew point42°
Wed, 2867° / 58°0.01
67 °
Centerville, Wednesday, 28 October
Light rain. High 67°, low 58°.
Pressure30.06 inHg
Wind10.8 mph SE
Humidity54%
Visibility—
Dew point49°
Thu, 2981° / 62°0.04
81 °
Centerville, Thursday, 29 October
Light rain. High 81°, low 62°.
Pressure29.94 inHg
Wind13.3 mph SW
Humidity40%
Visibility—
Dew point52°
Fri, 3078° / 61°0.29
78 °
Centerville, Friday, 30 October
Rain. High 78°, low 61°.
Pressure30.06 inHg
Wind12.5 mph NE
Humidity59%
Visibility—
Dew point58°
Sat, 3162° / 60°1.39
62 °
Centerville, Saturday, 31 October
Heavy rain. High 62°, low 60°.
Pressure29.97 inHg
Wind14.3 mph E
Humidity95%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0161° / 46°0.19
61 °
Centerville, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.19 in
Chance of precipitation28%
Record high80° (2016)
Record low26° (2023)
Mon, 0260° / 44°0.09
60 °
Centerville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.09 in
Chance of precipitation35%
Record high80° (2016)
Record low27° (1966)
Tue, 0358° / 43°0.12
58 °
Centerville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.12 in
Chance of precipitation30%
Record high78° (1987)
Record low19° (1991)
Wed, 0458° / 44°0.15
58 °
Centerville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.15 in
Chance of precipitation28%
Record high78° (1978)
Record low19° (1991)
Thu, 0557° / 43°0.17
57 °
Centerville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.17 in
Chance of precipitation35%
Record high78° (1978)
Record low24° (1991)
Fri, 0657° / 42°0.09
57 °
Centerville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation32%
Record high77° (2023)
Record low28° (1982)
Sat, 0758° / 42°0.07
58 °
Centerville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.07 in
Chance of precipitation13%
Record high74° (1980)
Record low15° (1991)
Sun, 0858° / 42°0.03
58 °
Centerville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.03 in
Chance of precipitation17%
Record high82° (2023)
Record low0° (1991)
Mon, 0958° / 43°0.11
58 °
Centerville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.11 in
Chance of precipitation28%
Record high78° (2022)
Record low10° (1991)
Tue, 1056° / 41°0.12
56 °
Centerville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.12 in
Chance of precipitation27%
Record high75° (2012)
Record low19° (2018)
Wed, 1154° / 38°0.09
54 °
Centerville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high76° (1964)
Record low21° (2019)
Thu, 1252° / 37°0.09
52 °
Centerville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.09 in
Chance of precipitation22%
Record high72° (2010)
Record low11° (2019)
Fri, 1354° / 38°0.05
54 °
Centerville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.05 in
Chance of precipitation20%
Record high78° (1999)
Record low11° (1986)
Sat, 1454° / 39°0.07
54 °
Centerville, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.07 in
Chance of precipitation27%
Record high78° (2025)
Record low16° (1986)
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 Centerville, 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 Centerville, 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.