Monthly outlook for Wildwood, IL: average high 78°, average low 62.4°. That is 0.1° above the climate normal for August. Precipitation is expected on 7 days (about 3.1 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 10 August (88°), the coolest 23 August (55°).
78°/62.4°
Average high / low
+0.1°
Above normal
7 / 6
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.5°
77.9°
+0.3°
19 August – 28 August
77.1°
77.8°
-0.4°
29 August – 7 September
at normal
76.1°
—
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 (13 mi).
Mon, 1088° / 71°0.43
88 °
Wildwood, Monday, 10 August
Rain. High 88°, low 71°.
Pressure29.91 inHg
Wind3.6 mph E
Humidity68%
Visibility6.2 mi
Dew point71°
Tue, 1183° / 66°1.41
83 °
Wildwood, Tuesday, 11 August
Heavy rain. High 83°, low 66°.
Pressure29.83 inHg
Wind6.2 mph SE
Humidity62%
Visibility6.2 mi
Dew point69°
Wed, 1284° / 63°0
84 °
Wildwood, Wednesday, 12 August
Light rain. High 84°, low 63°.
Pressure29.85 inHg
Wind4.5 mph NW
Humidity63%
Visibility6.2 mi
Dew point67°
Thu, 1373° / 62°0.02
73 °
Wildwood, Thursday, 13 August
Light rain. High 73°, low 62°.
Pressure29.97 inHg
Wind7.2 mph E
Humidity69%
Visibility—
Dew point60°
Fri, 1472° / 61°0
72 °
Wildwood, Friday, 14 August
Overcast. High 72°, low 61°.
Pressure30.18 inHg
Wind12.9 mph E
Humidity54%
Visibility—
Dew point53°
Sat, 1574° / 62°0.05
74 °
Wildwood, Saturday, 15 August
Light rain. High 74°, low 62°.
Pressure30.24 inHg
Wind15.6 mph SE
Humidity53%
Visibility—
Dew point54°
Sun, 1674° / 65°0.13
74 °
Wildwood, Sunday, 16 August
Light rain. High 74°, low 65°.
Pressure30.00 inHg
Wind11.4 mph NW
Humidity83%
Visibility—
Dew point66°
Mon, 1776° / 63°0
76 °
Wildwood, Monday, 17 August
Overcast. High 76°, low 63°.
Pressure30.09 inHg
Wind7.2 mph N
Humidity57%
Visibility—
Dew point57°
Tue, 1878° / 60°0
78 °
Wildwood, Tuesday, 18 August
Overcast. High 78°, low 60°.
Pressure29.91 inHg
Wind7.3 mph S
Humidity73%
Visibility—
Dew point58°
Wed, 1974° / 62°0.02
74 °
Wildwood, Wednesday, 19 August
Light rain. High 74°, low 62°.
Pressure29.83 inHg
Wind13.1 mph NW
Humidity68%
Visibility—
Dew point61°
Thu, 2073° / 60°0.05
73 °
Wildwood, Thursday, 20 August
Light rain. High 73°, low 60°.
Pressure29.94 inHg
Wind6.9 mph E
Humidity64%
Visibility—
Dew point59°
Fri, 2178° / 61°0.07
78 °
Wildwood, Friday, 21 August
Light rain. High 78°, low 61°.
Pressure29.77 inHg
Wind10.5 mph S
Humidity65%
Visibility—
Dew point59°
Sat, 2280° / 63°0.02
80 °
Wildwood, Saturday, 22 August
Light rain. High 80°, low 63°.
Pressure29.77 inHg
Wind14.8 mph NW
Humidity48%
Visibility—
Dew point57°
Sun, 2377° / 55°0
77 °
Wildwood, Sunday, 23 August
Clear. High 77°, low 55°.
Pressure30.15 inHg
Wind8.2 mph NW
Humidity46%
Visibility—
Dew point50°
Mon, 2480° / 61°0
80 °
Wildwood, Monday, 24 August
Clear. High 80°, low 61°.
Pressure30.18 inHg
Wind8.4 mph W
Humidity56%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 68°0.07
78 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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 °
Wildwood, 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)
Mon, 0775° / 65°0.07
75 °
Wildwood, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high89° (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 Wildwood, 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 Wildwood, 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.