As of 23:25 CDT

Weather in Medinah, IL

68°

Medinah, Saturday, 8 August, 23:25

Clear. Feels like 69°. High 83°, low 68°.

Pressure30.03 inHg

Wind1 mph E

Humidity86%

Visibility6.2 mi

Dew point63°

See detailed hourly forecast

Monthly outlook for Medinah, IL: average high 79.2°, average low 64.4°. That is 0.4° below the climate normal for August. Precipitation is expected on 3 days (about 1.7 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 10 August (88.2°), the coolest 21 August (56.3°).

79.2°/64.4°

Average high / low

−0.4°

Below normal

3 / 6

Wet days / normal

1.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	81.3°	80.1°	+0.7°
18 August – 27 August	75.7°	79.9°	-2.3°
28 August – 6 September	at normal	78.4°	—

August records over 66 years

99.3°24 August 2023All-time high

45.1°29 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Glendale Heights (4 mi).

Sun, 0987° / 64°

0.78

87 °

Medinah, Sunday, 9 August

Rain. High 87°, low 64°.

Pressure29.94 inHg

Wind11.1 mph S

Humidity67%

Visibility6.2 mi

Dew point71°

Mon, 1088° / 71°

0.68

88 °

Medinah, Monday, 10 August

Heavy rain. High 88°, low 71°.

Pressure29.91 inHg

Wind4.5 mph E

Humidity66%

Visibility6.2 mi

Dew point70°

Tue, 1185° / 71°

0.22

85 °

Medinah, Tuesday, 11 August

Rain. High 85°, low 71°.

Pressure29.80 inHg

Wind7.1 mph SW

Humidity85%

Visibility6.2 mi

Dew point73°

Wed, 1281° / 68°

0.01

81 °

Medinah, Wednesday, 12 August

Light rain. High 81°, low 68°.

Pressure29.85 inHg

Wind6 mph NW

Humidity62%

Visibility6.2 mi

Dew point65°

Thu, 1374° / 65°

74 °

Medinah, Thursday, 13 August

Overcast. High 74°, low 65°.

Pressure30.00 inHg

Wind8.7 mph NE

Humidity47%

Visibility—

Dew point52°

Fri, 1480° / 62°

80 °

Medinah, Friday, 14 August

Clear. High 80°, low 62°.

Pressure30.09 inHg

Wind7.5 mph N

Humidity37%

Visibility—

Dew point49°

Sat, 1574° / 64°

74 °

Medinah, Saturday, 15 August

Overcast. High 74°, low 64°.

Pressure30.27 inHg

Wind11.2 mph SW

Humidity44%

Visibility—

Dew point50°

Sun, 1679° / 65°

79 °

Medinah, Sunday, 16 August

Overcast. High 79°, low 65°.

Pressure30.12 inHg

Wind4 mph NE

Humidity51%

Visibility—

Dew point55°

Mon, 1781° / 66°

81 °

Medinah, Monday, 17 August

Light rain. High 81°, low 66°.

Pressure30.03 inHg

Wind7.9 mph W

Humidity57%

Visibility—

Dew point61°

Tue, 1883° / 67°

83 °

Medinah, Tuesday, 18 August

Overcast. High 83°, low 67°.

Pressure29.97 inHg

Wind10.9 mph SW

Humidity58%

Visibility—

Dew point64°

Wed, 1975° / 63°

0.02

75 °

Medinah, Wednesday, 19 August

Light rain. High 75°, low 63°.

Pressure29.94 inHg

Wind14.3 mph NW

Humidity71%

Visibility—

Dew point58°

Thu, 2069° / 56°

69 °

Medinah, Thursday, 20 August

Overcast. High 69°, low 56°.

Pressure30.06 inHg

Wind9.8 mph N

Humidity61%

Visibility—

Dew point50°

Fri, 2176° / 56°

76 °

Medinah, Friday, 21 August

Clear. High 76°, low 56°.

Pressure30.06 inHg

Wind9.9 mph NE

Humidity42%

Visibility—

Dew point49°

Sat, 2270° / 60°

0.01

70 °

Medinah, Saturday, 22 August

Light rain. High 70°, low 60°.

Pressure29.91 inHg

Wind9.4 mph S

Humidity76%

Visibility—

Dew point55°

Sun, 2381° / 65°

81 °

Medinah, Sunday, 23 August

Clear. High 81°, low 65°.

Pressure29.91 inHg

Wind12.5 mph W

Humidity41%

Visibility—

Dew point53°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2480° / 64°

0.13

80 °

Medinah, Monday, 24 August

Climate normal for this date — 60-year average.

Average high80°

Average low64°

Average precipitation0.13 in

Chance of precipitation27%

Record high99° (2023)

Record low53° (1967)

Tue, 2580° / 64°

0.07

80 °

Medinah, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°

Average low64°

Average precipitation0.07 in

Chance of precipitation25%

Record high92° (2003)

Record low52° (2017)

Wed, 2681° / 65°

0.15

81 °

Medinah, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°

Average low65°

Average precipitation0.15 in

Chance of precipitation32%

Record high95° (2024)

Record low51° (1964)

Thu, 2780° / 66°

0.11

80 °

Medinah, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high80°

Average low66°

Average precipitation0.11 in

Chance of precipitation30%

Record high97° (2024)

Record low54° (2015)

Fri, 2880° / 65°

0.13

80 °

Medinah, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°

Average low65°

Average precipitation0.13 in

Chance of precipitation37%

Record high93° (1984)

Record low48° (1986)

Sat, 2980° / 64°

0.11

80 °

Medinah, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°

Average low64°

Average precipitation0.11 in

Chance of precipitation30%

Record high94° (1984)

Record low45° (1965)

Sun, 3079° / 63°

0.13

79 °

Medinah, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high79°

Average low63°

Average precipitation0.13 in

Chance of precipitation28%

Record high93° (2013)

Record low51° (1986)

Mon, 3178° / 63°

0.08

78 °

Medinah, Monday, 31 August

Climate normal for this date — 60-year average.

Average high78°

Average low63°

Average precipitation0.08 in

Chance of precipitation18%

Record high90° (2012)

Record low51° (2009)

Tue, 0178° / 63°

0.12

78 °

Medinah, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°

Average low63°

Average precipitation0.12 in

Chance of precipitation32%

Record high93° (2011)

Record low47° (2009)

Wed, 0279° / 63°

0.04

79 °

Medinah, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°

Average low63°

Average precipitation0.04 in

Chance of precipitation22%

Record high92° (2008)

Record low48° (1965)

Thu, 0378° / 63°

0.09

78 °

Medinah, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high78°

Average low63°

Average precipitation0.09 in

Chance of precipitation30%

Record high94° (2023)

Record low48° (1974)

Fri, 0477° / 62°

0.09

77 °

Medinah, Friday, 4 September

Climate normal for this date — 60-year average.

Average high77°

Average low62°

Average precipitation0.09 in

Chance of precipitation32%

Record high92° (2023)

Record low47° (1974)

Sat, 0577° / 61°

0.08

77 °

Medinah, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high77°

Average low61°

Average precipitation0.08 in

Chance of precipitation23%

Record high90° (2023)

Record low50° (2010)

Sun, 0677° / 61°

0.11

77 °

Medinah, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high77°

Average low61°

Average precipitation0.11 in

Chance of precipitation37%

Record high91° (1990)

Record low47° (1988)

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.