Monthly outlook for Glenview, IL: average high 79.4°, average low 66.6°. That is 0.2° below the climate normal for August. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 19 August (85.9°), the coolest 23 August (58.4°).
79.4°/66.6°
Average high / low
−0.2°
Below normal
6 / 6
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
81.1°
79.9°
+0.7°
18 August – 27 August
76.4°
79.7°
-1.8°
28 August – 6 September
at normal
78.2°
—
August records over 66 years
99.1°24 August 2023All-time high
49.5°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Park Ridge (5 mi).
Sun, 0984° / 66°1.23
84 °
Glenview, Sunday, 9 August
Heavy rain. High 84°, low 66°.
Pressure29.91 inHg
Wind4 mph E
Humidity92%
Visibility6.2 mi
Dew point63°
Mon, 1085° / 73°0.16
85 °
Glenview, Monday, 10 August
Rain. High 85°, low 73°.
Pressure29.88 inHg
Wind4.1 mph S
Humidity81%
Visibility6.2 mi
Dew point69°
Tue, 1183° / 72°0.33
83 °
Glenview, Tuesday, 11 August
Rain. High 83°, low 72°.
Pressure29.80 inHg
Wind6.1 mph NW
Humidity67%
Visibility6.2 mi
Dew point71°
Wed, 1286° / 69°0.02
86 °
Glenview, Wednesday, 12 August
Light rain. High 86°, low 69°.
Pressure29.85 inHg
Wind1.3 mph NE
Humidity57%
Visibility6.2 mi
Dew point63°
Thu, 1373° / 66°0.07
73 °
Glenview, Thursday, 13 August
Light rain. High 73°, low 66°.
Pressure29.97 inHg
Wind10.7 mph NE
Humidity63%
Visibility—
Dew point59°
Fri, 1474° / 64°0
74 °
Glenview, Friday, 14 August
Clear. High 74°, low 64°.
Pressure30.18 inHg
Wind10.4 mph NE
Humidity45%
Visibility—
Dew point50°
Sat, 1579° / 61°0
79 °
Glenview, Saturday, 15 August
Overcast. High 79°, low 61°.
Pressure30.30 inHg
Wind4.9 mph SW
Humidity36%
Visibility—
Dew point46°
Sun, 1682° / 63°0
82 °
Glenview, Sunday, 16 August
Overcast. High 82°, low 63°.
Pressure30.18 inHg
Wind9.1 mph SW
Humidity38%
Visibility—
Dew point50°
Mon, 1784° / 69°0.04
84 °
Glenview, Monday, 17 August
Light rain. High 84°, low 69°.
Pressure30.00 inHg
Wind6.1 mph S
Humidity83%
Visibility—
Dew point65°
Tue, 1880° / 71°0.01
80 °
Glenview, Tuesday, 18 August
Light rain. High 80°, low 71°.
Pressure30.03 inHg
Wind8.4 mph NE
Humidity59%
Visibility—
Dew point64°
Wed, 1986° / 69°0.42
86 °
Glenview, Wednesday, 19 August
Rain. High 86°, low 69°.
Pressure29.91 inHg
Wind5.9 mph SW
Humidity49%
Visibility—
Dew point62°
Thu, 2076° / 69°0.01
76 °
Glenview, Thursday, 20 August
Light rain. High 76°, low 69°.
Pressure29.91 inHg
Wind9.4 mph NE
Humidity71%
Visibility—
Dew point64°
Fri, 2176° / 66°0
76 °
Glenview, Friday, 21 August
Partly cloudy. High 76°, low 66°.
Pressure29.97 inHg
Wind9.6 mph NE
Humidity59%
Visibility—
Dew point60°
Sat, 2275° / 62°0.04
75 °
Glenview, Saturday, 22 August
Light rain. High 75°, low 62°.
Pressure29.97 inHg
Wind15.9 mph NE
Humidity78%
Visibility—
Dew point59°
Sun, 2365° / 58°0
65 °
Glenview, Sunday, 23 August
Clear. High 65°, low 58°.
Pressure30.27 inHg
Wind14 mph NE
Humidity48%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 66°0.12
80 °
Glenview, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.12 in
Chance of precipitation28%
Record high99° (2023)
Record low56° (1965)
Tue, 2580° / 66°0.06
80 °
Glenview, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.06 in
Chance of precipitation23%
Record high92° (2021)
Record low51° (2017)
Wed, 2680° / 67°0.15
80 °
Glenview, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.15 in
Chance of precipitation33%
Record high95° (2024)
Record low53° (2025)
Thu, 2780° / 68°0.11
80 °
Glenview, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.11 in
Chance of precipitation32%
Record high98° (2024)
Record low54° (2025)
Fri, 2880° / 67°0.13
80 °
Glenview, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.13 in
Chance of precipitation35%
Record high92° (1984)
Record low52° (1986)
Sat, 2980° / 66°0.11
80 °
Glenview, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.11 in
Chance of precipitation30%
Record high94° (1984)
Record low49° (1965)
Sun, 3079° / 65°0.13
79 °
Glenview, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low65°
Average precipitation0.13 in
Chance of precipitation28%
Record high94° (2013)
Record low55° (2004)
Mon, 3178° / 65°0.07
78 °
Glenview, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high91° (2012)
Record low54° (2023)
Tue, 0178° / 65°0.12
78 °
Glenview, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low65°
Average precipitation0.12 in
Chance of precipitation32%
Record high92° (2011)
Record low55° (2023)
Wed, 0278° / 65°0.05
78 °
Glenview, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low65°
Average precipitation0.05 in
Chance of precipitation25%
Record high91° (2011)
Record low47° (2017)
Thu, 0378° / 65°0.08
78 °
Glenview, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low65°
Average precipitation0.08 in
Chance of precipitation30%
Record high94° (2023)
Record low52° (1974)
Fri, 0477° / 64°0.09
77 °
Glenview, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low64°
Average precipitation0.09 in
Chance of precipitation30%
Record high93° (2023)
Record low49° (2025)
Sat, 0577° / 63°0.08
77 °
Glenview, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.08 in
Chance of precipitation22%
Record high90° (2023)
Record low54° (2010)
Sun, 0677° / 64°0.1
77 °
Glenview, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low64°
Average precipitation0.1 in
Chance of precipitation33%
Record high92° (1990)
Record low49° (2025)
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 Glenview, 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 Glenview, 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.