Monthly outlook for Beach Park, IL: average high 75.1°, average low 64.2°. That is 1.6° below the climate normal for August. Precipitation is expected on 6 days (about 2.8 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 9 August (82.9°), the coolest 23 August (55.2°).
75.1°/64.2°
Average high / low
−1.6°
Below normal
6 / 6
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
77.1°
78.1°
-0.6°
18 August – 27 August
71.7°
77.8°
-3.4°
28 August – 6 September
at normal
76.4°
—
August records over 66 years
98.6°24 August 2023All-time high
52.5°22 August 2024All-time low
Climate normals and records are computed from the nearest reference point — Highwood (15 mi).
Sun, 0983° / 65°1.2
83 °
Beach Park, Sunday, 9 August
Heavy rain. High 83°, low 65°.
Pressure29.88 inHg
Wind10.4 mph SE
Humidity92%
Visibility6.2 mi
Dew point64°
Mon, 1078° / 70°0.36
78 °
Beach Park, Monday, 10 August
Heavy rain. High 78°, low 70°.
Pressure29.91 inHg
Wind3.8 mph W
Humidity92%
Visibility6.2 mi
Dew point68°
Tue, 1180° / 68°0.55
80 °
Beach Park, Tuesday, 11 August
Heavy rain. High 80°, low 68°.
Pressure29.83 inHg
Wind14 mph N
Humidity100%
Visibility0.4 mi
Dew point71°
Wed, 1282° / 68°0
82 °
Beach Park, Wednesday, 12 August
Partly cloudy. High 82°, low 68°.
Pressure29.85 inHg
Wind3 mph S
Humidity69%
Visibility6.2 mi
Dew point66°
Thu, 1369° / 62°0.11
69 °
Beach Park, Thursday, 13 August
Light rain. High 69°, low 62°.
Pressure29.97 inHg
Wind15.1 mph NE
Humidity80%
Visibility—
Dew point60°
Fri, 1470° / 61°0
70 °
Beach Park, Friday, 14 August
Clear. High 70°, low 61°.
Pressure30.21 inHg
Wind10.1 mph NE
Humidity57%
Visibility—
Dew point53°
Sat, 1573° / 58°0
73 °
Beach Park, Saturday, 15 August
Overcast. High 73°, low 58°.
Pressure30.30 inHg
Wind6.4 mph SE
Humidity51%
Visibility—
Dew point52°
Sun, 1677° / 61°0
77 °
Beach Park, Sunday, 16 August
Overcast. High 77°, low 61°.
Pressure30.18 inHg
Wind10.2 mph SW
Humidity54%
Visibility—
Dew point56°
Mon, 1776° / 69°0.02
76 °
Beach Park, Monday, 17 August
Light rain. High 76°, low 69°.
Pressure30.00 inHg
Wind7 mph S
Humidity86%
Visibility—
Dew point65°
Tue, 1876° / 67°0.01
76 °
Beach Park, Tuesday, 18 August
Light rain. High 76°, low 67°.
Pressure30.06 inHg
Wind9.4 mph NE
Humidity69%
Visibility—
Dew point64°
Wed, 1977° / 67°0.31
77 °
Beach Park, Wednesday, 19 August
Rain. High 77°, low 67°.
Pressure29.91 inHg
Wind6.2 mph N
Humidity68%
Visibility—
Dew point65°
Thu, 2074° / 66°0.02
74 °
Beach Park, Thursday, 20 August
Light rain. High 74°, low 66°.
Pressure29.91 inHg
Wind11.7 mph N
Humidity76%
Visibility—
Dew point65°
Fri, 2173° / 64°0
73 °
Beach Park, Friday, 21 August
Overcast. High 73°, low 64°.
Pressure30.00 inHg
Wind10.3 mph NE
Humidity69%
Visibility—
Dew point61°
Sat, 2269° / 60°0.15
69 °
Beach Park, Saturday, 22 August
Light rain. High 69°, low 60°.
Pressure29.97 inHg
Wind18.9 mph NE
Humidity84%
Visibility—
Dew point59°
Sun, 2363° / 55°0
63 °
Beach Park, Sunday, 23 August
Mostly clear. High 63°, low 55°.
Pressure30.27 inHg
Wind17.4 mph NE
Humidity59%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 68°0.11
78 °
Beach Park, Monday, 24 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.11 in
Chance of precipitation25%
Record high99° (2023)
Record low58° (2025)
Tue, 2578° / 68°0.07
78 °
Beach Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (2024)
Record low54° (2017)
Wed, 2679° / 68°0.14
79 °
Beach Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low68°
Average precipitation0.14 in
Chance of precipitation35%
Record high94° (2024)
Record low54° (2025)
Thu, 2778° / 69°0.1
78 °
Beach Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.1 in
Chance of precipitation32%
Record high96° (2024)
Record low55° (2025)
Fri, 2878° / 68°0.12
78 °
Beach Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.12 in
Chance of precipitation35%
Record high92° (2021)
Record low54° (1986)
Sat, 2978° / 68°0.13
78 °
Beach Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.13 in
Chance of precipitation28%
Record high89° (1984)
Record low54° (1965)
Sun, 3077° / 67°0.09
77 °
Beach Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2013)
Record low57° (2023)
Mon, 3176° / 67°0.06
76 °
Beach Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.06 in
Chance of precipitation20%
Record high89° (2012)
Record low56° (2025)
Tue, 0176° / 67°0.1
76 °
Beach Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.1 in
Chance of precipitation28%
Record high89° (1960)
Record low57° (2017)
Wed, 0277° / 67°0.04
77 °
Beach Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.04 in
Chance of precipitation25%
Record high87° (2023)
Record low50° (2017)
Thu, 0376° / 66°0.09
76 °
Beach Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.09 in
Chance of precipitation27%
Record high92° (2023)
Record low54° (1974)
Fri, 0475° / 66°0.08
75 °
Beach Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.08 in
Chance of precipitation30%
Record high91° (2023)
Record low49° (2025)
Sat, 0575° / 65°0.08
75 °
Beach Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.08 in
Chance of precipitation25%
Record high89° (2023)
Record low55° (2017)
Sun, 0675° / 65°0.09
75 °
Beach Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.09 in
Chance of precipitation33%
Record high90° (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 Beach Park, 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 Beach Park, 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.