Monthly outlook for Elmwood Park, IL: average high 82.6°, average low 66°. That is 1.5° above the climate normal for August. Precipitation is expected on 8 days (about 3.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 10 August (90.7°), the coolest 9 August (62.9°).
82.6°/66°
Average high / low
+1.5°
Above normal
8 / 5
Wet days / normal
3.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
82.8°
80°
+1.6°
19 August – 28 August
82.3°
80°
+1.2°
29 August – 7 September
at normal
78.3°
—
August records over 66 years
99.1°24 August 2023All-time high
48.6°22 August 2024All-time low
Mon, 1091° / 73°1.25
91 °
Elmwood Park, Monday, 10 August
Heavy rain. High 91°, low 73°.
Pressure29.88 inHg
Wind2.2 mph NE
Humidity58%
Visibility6.2 mi
Dew point71°
Tue, 1189° / 67°1.06
89 °
Elmwood Park, Tuesday, 11 August
Heavy rain. High 89°, low 67°.
Pressure29.83 inHg
Wind6.6 mph S
Humidity56%
Visibility6.2 mi
Dew point70°
Wed, 1288° / 67°0.02
88 °
Elmwood Park, Wednesday, 12 August
Light rain. High 88°, low 67°.
Pressure29.85 inHg
Wind3.1 mph NE
Humidity46%
Visibility6.2 mi
Dew point62°
Thu, 1377° / 66°0.11
77 °
Elmwood Park, Thursday, 13 August
Light rain. High 77°, low 66°.
Pressure29.97 inHg
Wind5.5 mph E
Humidity50%
Visibility—
Dew point55°
Fri, 1476° / 65°0
76 °
Elmwood Park, Friday, 14 August
Overcast. High 76°, low 65°.
Pressure30.15 inHg
Wind11.1 mph E
Humidity43%
Visibility—
Dew point51°
Sat, 1578° / 67°0.06
78 °
Elmwood Park, Saturday, 15 August
Light rain. High 78°, low 67°.
Pressure30.21 inHg
Wind12.3 mph SE
Humidity35%
Visibility—
Dew point46°
Sun, 1681° / 65°0.25
81 °
Elmwood Park, Sunday, 16 August
Rain. High 81°, low 65°.
Pressure29.97 inHg
Wind9 mph NW
Humidity64%
Visibility—
Dew point65°
Mon, 1779° / 67°0.01
79 °
Elmwood Park, Monday, 17 August
Light rain. High 79°, low 67°.
Pressure30.09 inHg
Wind6.3 mph N
Humidity46%
Visibility—
Dew point53°
Tue, 1883° / 63°0
83 °
Elmwood Park, Tuesday, 18 August
Light rain. High 83°, low 63°.
Pressure29.91 inHg
Wind7.4 mph SW
Humidity67%
Visibility—
Dew point58°
Wed, 1982° / 69°0.04
82 °
Elmwood Park, Wednesday, 19 August
Light rain. High 82°, low 69°.
Pressure29.80 inHg
Wind10.4 mph N
Humidity45%
Visibility—
Dew point57°
Thu, 2077° / 67°0.05
77 °
Elmwood Park, Thursday, 20 August
Light rain. High 77°, low 67°.
Pressure29.94 inHg
Wind6.1 mph SE
Humidity67%
Visibility—
Dew point60°
Fri, 2185° / 64°0.13
85 °
Elmwood Park, Friday, 21 August
Rain. High 85°, low 64°.
Pressure29.83 inHg
Wind12.4 mph S
Humidity39%
Visibility—
Dew point53°
Sat, 2286° / 67°0.03
86 °
Elmwood Park, Saturday, 22 August
Light rain. High 86°, low 67°.
Pressure29.77 inHg
Wind13.8 mph NW
Humidity32%
Visibility—
Dew point50°
Sun, 2381° / 63°0
81 °
Elmwood Park, Sunday, 23 August
Clear. High 81°, low 63°.
Pressure30.12 inHg
Wind6.7 mph N
Humidity28%
Visibility—
Dew point42°
Mon, 2484° / 65°0
84 °
Elmwood Park, Monday, 24 August
Clear. High 84°, low 65°.
Pressure30.18 inHg
Wind7.5 mph W
Humidity39%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 66°0.07
80 °
Elmwood Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.07 in
Chance of precipitation23%
Record high93° (2021)
Record low52° (2017)
Wed, 2681° / 67°0.14
81 °
Elmwood Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0.14 in
Chance of precipitation33%
Record high96° (2024)
Record low54° (2025)
Thu, 2781° / 67°0.11
81 °
Elmwood Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0.11 in
Chance of precipitation35%
Record high98° (2024)
Record low56° (2025)
Fri, 2880° / 67°0.13
80 °
Elmwood Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.13 in
Chance of precipitation35%
Record high93° (1984)
Record low51° (1986)
Sat, 2980° / 66°0.11
80 °
Elmwood Park, 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 °
Elmwood Park, 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 low54° (1986)
Mon, 3178° / 65°0.07
78 °
Elmwood Park, 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 low55° (2023)
Tue, 0178° / 65°0.12
78 °
Elmwood Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low65°
Average precipitation0.12 in
Chance of precipitation32%
Record high93° (2011)
Record low54° (1987)
Wed, 0279° / 65°0.05
79 °
Elmwood Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low65°
Average precipitation0.05 in
Chance of precipitation23%
Record high91° (2011)
Record low51° (1965)
Thu, 0379° / 65°0.09
79 °
Elmwood Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low65°
Average precipitation0.09 in
Chance of precipitation30%
Record high94° (2023)
Record low52° (1974)
Fri, 0477° / 64°0.09
77 °
Elmwood Park, 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 low50° (2025)
Sat, 0578° / 63°0.09
78 °
Elmwood Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.09 in
Chance of precipitation22%
Record high91° (2023)
Record low53° (1974)
Sun, 0677° / 63°0.1
77 °
Elmwood Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.1 in
Chance of precipitation35%
Record high92° (1990)
Record low50° (2025)
Mon, 0777° / 63°0.07
77 °
Elmwood Park, Monday, 7 September
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.07 in
Chance of precipitation32%
Record high92° (1960)
Record low48° (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 Elmwood 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 Elmwood 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.