Monthly outlook for Medinah, IL: average high 63.6°, average low 51.7°. That is 5° above the climate normal for October. Precipitation is expected on 6 days (about 1.3 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 23 October (71.9°), the coolest 30 October (46.2°).
63.6°/51.7°
Average high / low
+5°
Above normal
6 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
63.3°
56.1°
+4°
2 November – 11 November
64.2°
51.2°
+7.2°
12 November – 21 November
at normal
46.3°
—
October records over 66 years
87.4°3 October 2025All-time high
22.5°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Glendale Heights (4 mi).
Sat, 2468° / 48°0
68 °
Medinah, Saturday, 24 October
Overcast. High 68°, low 48°.
Pressure30.39 inHg
Wind5.4 mph S
Humidity69%
Visibility6.2 mi
Dew point51°
Sun, 2568° / 48°0
68 °
Medinah, Sunday, 25 October
Partly cloudy. High 68°, low 48°.
Pressure30.39 inHg
Wind4.8 mph S
Humidity64%
Visibility6.2 mi
Dew point52°
Mon, 2661° / 51°0
61 °
Medinah, Monday, 26 October
Overcast. High 61°, low 51°.
Pressure30.36 inHg
Wind6.9 mph NE
Humidity76%
Visibility6.2 mi
Dew point53°
Tue, 2760° / 51°0
60 °
Medinah, Tuesday, 27 October
Overcast. High 60°, low 51°.
Pressure30.30 inHg
Wind6.2 mph E
Humidity76%
Visibility6.2 mi
Dew point51°
Wed, 2868° / 52°0
68 °
Medinah, Wednesday, 28 October
Mostly clear. High 68°, low 52°.
Pressure30.09 inHg
Wind12 mph S
Humidity62%
Visibility—
Dew point51°
Thu, 2963° / 50°0.24
63 °
Medinah, Thursday, 29 October
Rain. High 63°, low 50°.
Pressure30.06 inHg
Wind13.6 mph SW
Humidity83%
Visibility—
Dew point55°
Fri, 3053° / 46°0.04
53 °
Medinah, Friday, 30 October
Light rain. High 53°, low 46°.
Pressure30.27 inHg
Wind9.7 mph NE
Humidity58%
Visibility—
Dew point37°
Sat, 3158° / 47°0.16
58 °
Medinah, Saturday, 31 October
Light rain. High 58°, low 47°.
Pressure30.15 inHg
Wind8.9 mph E
Humidity90%
Visibility—
Dew point50°
Sun, 0162° / 54°0
62 °
Medinah, Sunday, 1 November
Overcast. High 62°, low 54°.
Pressure30.12 inHg
Wind2.8 mph E
Humidity67%
Visibility—
Dew point49°
Mon, 0264° / 53°0.05
64 °
Medinah, Monday, 2 November
Light rain. High 64°, low 53°.
Pressure30.06 inHg
Wind7.3 mph SE
Humidity57%
Visibility—
Dew point46°
Tue, 0359° / 57°0.46
59 °
Medinah, Tuesday, 3 November
Rain. High 59°, low 57°.
Pressure29.71 inHg
Wind9.2 mph SE
Humidity95%
Visibility—
Dew point57°
Wed, 0463° / 59°0.02
63 °
Medinah, Wednesday, 4 November
Light rain. High 63°, low 59°.
Pressure29.68 inHg
Wind6 mph NW
Humidity86%
Visibility—
Dew point58°
Thu, 0567° / 56°0.3
67 °
Medinah, Thursday, 5 November
Rain. High 67°, low 56°.
Pressure29.83 inHg
Wind5.7 mph SE
Humidity60%
Visibility—
Dew point51°
Fri, 0664° / 55°0.04
64 °
Medinah, Friday, 6 November
Light rain. High 64°, low 55°.
Pressure29.85 inHg
Wind10.8 mph SW
Humidity62%
Visibility—
Dew point49°
Sat, 0768° / 53°0
68 °
Medinah, Saturday, 7 November
Clear. High 68°, low 53°.
Pressure29.71 inHg
Wind13.6 mph W
Humidity46%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0851° / 37°0.04
51 °
Medinah, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2020)
Record low13° (1991)
Mon, 0951° / 38°0.11
51 °
Medinah, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation35%
Record high72° (1999)
Record low17° (1991)
Tue, 1050° / 37°0.1
50 °
Medinah, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation32%
Record high72° (2020)
Record low17° (2017)
Wed, 1147° / 34°0.07
47 °
Medinah, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (1964)
Record low15° (2019)
Thu, 1246° / 33°0.06
46 °
Medinah, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation22%
Record high66° (1964)
Record low2° (2019)
Fri, 1346° / 33°0.04
46 °
Medinah, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1999)
Record low3° (2019)
Sat, 1447° / 33°0.07
47 °
Medinah, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.07 in
Chance of precipitation30%
Record high69° (1971)
Record low13° (1986)
Sun, 1547° / 34°0.09
47 °
Medinah, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2025)
Record low19° (1982)
Mon, 1647° / 33°0.05
47 °
Medinah, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.05 in
Chance of precipitation18%
Record high63° (1988)
Record low20° (1997)
Tue, 1747° / 34°0.08
47 °
Medinah, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation30%
Record high70° (2016)
Record low15° (2014)
Wed, 1847° / 35°0.11
47 °
Medinah, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.11 in
Chance of precipitation28%
Record high67° (1999)
Record low11° (2014)
Thu, 1947° / 34°0.07
47 °
Medinah, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation30%
Record high65° (1983)
Record low17° (2014)
Fri, 2045° / 33°0.08
45 °
Medinah, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation28%
Record high63° (2003)
Record low14° (2022)
Sat, 2144° / 31°0.1
44 °
Medinah, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.1 in
Chance of precipitation25%
Record high66° (1990)
Record low9° (1964)
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 Medinah, 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 Medinah, 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.