Monthly outlook for Oldenburg, IL: average high 74.8°, average low 57.8°. That is 5.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (93.9°), the coolest 18 October (42.5°).
74.8°/57.8°
Average high / low
+5.4°
Above normal
3 / 5
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
76.5°
66.3°
+5.7°
22 October – 31 October
71.9°
62.6°
+5.2°
1 November – 10 November
at normal
58°
—
October records over 66 years
91.4°1 October 2019All-time high
28.6°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Edwardsville (6 mi).
Tue, 1394° / 65°0
94 °
Oldenburg, Tuesday, 13 October
Clear. High 94°, low 65°.
Pressure29.91 inHg
Wind6.9 mph SW
Humidity52%
Visibility6.2 mi
Dew point66°
Wed, 1480° / 70°0.27
80 °
Oldenburg, Wednesday, 14 October
Rain. High 80°, low 70°.
Pressure30.03 inHg
Wind3.5 mph NE
Humidity92%
Visibility5.2 mi
Dew point72°
Thu, 1580° / 70°0.43
80 °
Oldenburg, Thursday, 15 October
Rain. High 80°, low 70°.
Pressure30.06 inHg
Wind6.6 mph SW
Humidity95%
Visibility1.6 mi
Dew point73°
Fri, 1664° / 53°0
64 °
Oldenburg, Friday, 16 October
Partly cloudy. High 64°, low 53°.
Pressure30.42 inHg
Wind15.7 mph N
Humidity48%
Visibility—
Dew point41°
Sat, 1762° / 46°0
62 °
Oldenburg, Saturday, 17 October
Partly cloudy. High 62°, low 46°.
Pressure30.45 inHg
Wind6.7 mph SE
Humidity48%
Visibility—
Dew point38°
Sun, 1867° / 43°0
67 °
Oldenburg, Sunday, 18 October
Clear. High 67°, low 43°.
Pressure30.30 inHg
Wind8.9 mph S
Humidity22%
Visibility—
Dew point21°
Mon, 1975° / 52°0
75 °
Oldenburg, Monday, 19 October
Light rain. High 75°, low 52°.
Pressure30.24 inHg
Wind10.7 mph S
Humidity51%
Visibility—
Dew point51°
Tue, 2072° / 60°0.06
72 °
Oldenburg, Tuesday, 20 October
Light rain. High 72°, low 60°.
Pressure30.27 inHg
Wind8.6 mph E
Humidity64%
Visibility—
Dew point56°
Wed, 2178° / 58°0
78 °
Oldenburg, Wednesday, 21 October
Clear. High 78°, low 58°.
Pressure30.24 inHg
Wind9 mph E
Humidity51%
Visibility—
Dew point54°
Thu, 2281° / 60°0
81 °
Oldenburg, Thursday, 22 October
Overcast. High 81°, low 60°.
Pressure30.24 inHg
Wind8.1 mph S
Humidity39%
Visibility—
Dew point49°
Fri, 2373° / 64°0
73 °
Oldenburg, Friday, 23 October
Light rain. High 73°, low 64°.
Pressure30.24 inHg
Wind10.1 mph N
Humidity53%
Visibility—
Dew point54°
Sat, 2469° / 54°0
69 °
Oldenburg, Saturday, 24 October
Overcast. High 69°, low 54°.
Pressure30.30 inHg
Wind10.7 mph E
Humidity36%
Visibility—
Dew point38°
Sun, 2581° / 61°0.01
81 °
Oldenburg, Sunday, 25 October
Light rain. High 81°, low 61°.
Pressure29.80 inHg
Wind20.9 mph W
Humidity42%
Visibility—
Dew point54°
Mon, 2661° / 57°0
61 °
Oldenburg, Monday, 26 October
Overcast. High 61°, low 57°.
Pressure30.09 inHg
Wind14.2 mph NW
Humidity67%
Visibility—
Dew point47°
Tue, 2767° / 47°0
67 °
Oldenburg, Tuesday, 27 October
Partly cloudy. High 67°, low 47°.
Pressure30.12 inHg
Wind5.8 mph N
Humidity41%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2861° / 46°0.05
61 °
Oldenburg, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.05 in
Chance of precipitation22%
Record high78° (1999)
Record low32° (1969)
Thu, 2961° / 46°0.11
61 °
Oldenburg, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.11 in
Chance of precipitation30%
Record high81° (2004)
Record low31° (1980)
Fri, 3063° / 47°0.12
63 °
Oldenburg, Friday, 30 October
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.12 in
Chance of precipitation30%
Record high79° (1971)
Record low29° (1980)
Sat, 3162° / 47°0.15
62 °
Oldenburg, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.15 in
Chance of precipitation38%
Record high79° (1968)
Record low29° (1993)
Sun, 0161° / 46°0.18
61 °
Oldenburg, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.18 in
Chance of precipitation30%
Record high79° (2016)
Record low27° (1993)
Mon, 0260° / 45°0.08
60 °
Oldenburg, Monday, 2 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.08 in
Chance of precipitation30%
Record high79° (2016)
Record low27° (1966)
Tue, 0358° / 44°0.11
58 °
Oldenburg, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.11 in
Chance of precipitation30%
Record high78° (1987)
Record low20° (1991)
Wed, 0457° / 45°0.16
57 °
Oldenburg, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.16 in
Chance of precipitation28%
Record high76° (2022)
Record low20° (1991)
Thu, 0558° / 43°0.16
58 °
Oldenburg, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.16 in
Chance of precipitation30%
Record high76° (1978)
Record low24° (1991)
Fri, 0657° / 42°0.09
57 °
Oldenburg, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation33%
Record high77° (2023)
Record low28° (1982)
Sat, 0757° / 42°0.08
57 °
Oldenburg, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation22%
Record high74° (1980)
Record low17° (1991)
Sun, 0857° / 42°0.04
57 °
Oldenburg, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.04 in
Chance of precipitation17%
Record high80° (2023)
Record low4° (1991)
Mon, 0958° / 43°0.1
58 °
Oldenburg, Monday, 9 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.1 in
Chance of precipitation30%
Record high76° (2022)
Record low8° (1991)
Tue, 1056° / 41°0.13
56 °
Oldenburg, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.13 in
Chance of precipitation30%
Record high74° (2020)
Record low20° (2018)
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 Oldenburg, 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 Oldenburg, 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.