Monthly outlook for Oak Hill, IL: average high 67.2°, average low 48.4°. That is 4.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 27 October (76.5°), the coolest 17 October (35.8°).
67.2°/48.4°
Average high / low
+4.4°
Above normal
4 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
66.9°
60.2°
+3.7°
27 October – 5 November
67.8°
56.3°
+6.4°
6 November – 15 November
at normal
51°
—
October records over 66 years
88.9°3 October 2006All-time high
19.9°22 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Trivoli (6 mi).
Sun, 1862° / 40°0
62 °
Oak Hill, Sunday, 18 October
Clear. High 62°, low 40°.
Pressure30.45 inHg
Wind11.6 mph S
Humidity52%
Visibility6.2 mi
Dew point41°
Mon, 1965° / 42°0
65 °
Oak Hill, Monday, 19 October
Clear. High 65°, low 42°.
Pressure30.39 inHg
Wind4.4 mph S
Humidity55%
Visibility6.2 mi
Dew point46°
Tue, 2066° / 42°0
66 °
Oak Hill, Tuesday, 20 October
Clear. High 66°, low 42°.
Pressure30.36 inHg
Wind4.6 mph S
Humidity48%
Visibility6.2 mi
Dew point45°
Wed, 2169° / 45°0
69 °
Oak Hill, Wednesday, 21 October
Clear. High 69°, low 45°.
Pressure30.27 inHg
Wind5.3 mph S
Humidity47%
Visibility—
Dew point44°
Thu, 2270° / 47°0
70 °
Oak Hill, Thursday, 22 October
Clear. High 70°, low 47°.
Pressure30.27 inHg
Wind5.7 mph E
Humidity45%
Visibility—
Dew point45°
Fri, 2374° / 53°0
74 °
Oak Hill, Friday, 23 October
Clear. High 74°, low 53°.
Pressure30.15 inHg
Wind10.3 mph S
Humidity36%
Visibility—
Dew point41°
Sat, 2473° / 58°0
73 °
Oak Hill, Saturday, 24 October
Overcast. High 73°, low 58°.
Pressure30.09 inHg
Wind15.9 mph S
Humidity36%
Visibility—
Dew point41°
Sun, 2567° / 53°0
67 °
Oak Hill, Sunday, 25 October
Overcast. High 67°, low 53°.
Pressure30.09 inHg
Wind13.4 mph S
Humidity43%
Visibility—
Dew point43°
Mon, 2668° / 47°0
68 °
Oak Hill, Monday, 26 October
Clear. High 68°, low 47°.
Pressure30.18 inHg
Wind8.7 mph SE
Humidity46%
Visibility—
Dew point41°
Tue, 2776° / 60°0
76 °
Oak Hill, Tuesday, 27 October
Overcast. High 76°, low 60°.
Pressure30.00 inHg
Wind16.1 mph S
Humidity43%
Visibility—
Dew point47°
Wed, 2867° / 58°0.46
67 °
Oak Hill, Wednesday, 28 October
Rain. High 67°, low 58°.
Pressure29.91 inHg
Wind17.2 mph S
Humidity89%
Visibility—
Dew point55°
Thu, 2962° / 48°0.04
62 °
Oak Hill, Thursday, 29 October
Light rain. High 62°, low 48°.
Pressure30.12 inHg
Wind14.5 mph NW
Humidity44%
Visibility—
Dew point37°
Fri, 3071° / 55°0.83
71 °
Oak Hill, Friday, 30 October
Rain. High 71°, low 55°.
Pressure29.74 inHg
Wind22.6 mph S
Humidity89%
Visibility—
Dew point62°
Sat, 3171° / 49°0.13
71 °
Oak Hill, Saturday, 31 October
Light rain. High 71°, low 49°.
Pressure29.77 inHg
Wind25.7 mph S
Humidity46%
Visibility—
Dew point38°
Sun, 0160° / 43°0
60 °
Oak Hill, Sunday, 1 November
Overcast. High 60°, low 43°.
Pressure30.18 inHg
Wind6.7 mph W
Humidity33%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0255° / 41°0.08
55 °
Oak Hill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.08 in
Chance of precipitation28%
Record high75° (1961)
Record low23° (1991)
Tue, 0355° / 40°0.08
55 °
Oak Hill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.08 in
Chance of precipitation23%
Record high74° (1964)
Record low17° (1991)
Wed, 0454° / 41°0.09
54 °
Oak Hill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.09 in
Chance of precipitation22%
Record high74° (1978)
Record low16° (1991)
Thu, 0553° / 39°0.13
53 °
Oak Hill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation25%
Record high74° (1978)
Record low19° (1991)
Fri, 0653° / 38°0.09
53 °
Oak Hill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (2020)
Record low23° (1991)
Sat, 0753° / 38°0.03
53 °
Oak Hill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.03 in
Chance of precipitation18%
Record high70° (1966)
Record low16° (1991)
Sun, 0853° / 38°0.05
53 °
Oak Hill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation22%
Record high76° (1999)
Record low13° (1991)
Mon, 0954° / 39°0.14
54 °
Oak Hill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation35%
Record high73° (1999)
Record low16° (1991)
Tue, 1051° / 37°0.15
51 °
Oak Hill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation30%
Record high73° (2020)
Record low16° (2018)
Wed, 1149° / 35°0.07
49 °
Oak Hill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high73° (1964)
Record low17° (2019)
Thu, 1248° / 34°0.07
48 °
Oak Hill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation25%
Record high69° (2010)
Record low8° (2019)
Fri, 1349° / 34°0.06
49 °
Oak Hill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.06 in
Chance of precipitation13%
Record high73° (1999)
Record low7° (1986)
Sat, 1450° / 35°0.07
50 °
Oak Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (2025)
Record low13° (1986)
Sun, 1549° / 35°0.06
49 °
Oak Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (2025)
Record low18° (2014)
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 Oak Hill, 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 Oak Hill, 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.