Monthly outlook for Campton Hills, IL: average high 76.5°, average low 60.7°. That is 1.9° below the climate normal for August. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 9 August (87.8°), the coolest 20 August (51°).
76.5°/60.7°
Average high / low
−1.9°
Below normal
3 / 6
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
78.6°
80°
-0.8°
18 August – 27 August
72.9°
79.9°
-3.9°
28 August – 6 September
at normal
78.3°
—
August records over 66 years
98.1°24 August 2023All-time high
46.4°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Elgin (8 mi).
Sun, 0988° / 62°0.56
88 °
Campton Hills, Sunday, 9 August
Rain. High 88°, low 62°.
Pressure29.94 inHg
Wind12.4 mph S
Humidity80%
Visibility6.2 mi
Dew point74°
Mon, 1086° / 69°0.54
86 °
Campton Hills, Monday, 10 August
Heavy rain. High 86°, low 69°.
Pressure29.91 inHg
Wind7.1 mph E
Humidity75%
Visibility6.2 mi
Dew point73°
Tue, 1184° / 68°0.05
84 °
Campton Hills, Tuesday, 11 August
Light rain. High 84°, low 68°.
Pressure29.77 inHg
Wind8.2 mph SW
Humidity81%
Visibility6.2 mi
Dew point73°
Wed, 1278° / 65°0.02
78 °
Campton Hills, Wednesday, 12 August
Light rain. High 78°, low 65°.
Pressure29.88 inHg
Wind7.1 mph NW
Humidity80%
Visibility6.2 mi
Dew point69°
Thu, 1373° / 60°0
73 °
Campton Hills, Thursday, 13 August
Overcast. High 73°, low 60°.
Pressure30.03 inHg
Wind8.6 mph NE
Humidity62%
Visibility—
Dew point57°
Fri, 1476° / 58°0
76 °
Campton Hills, Friday, 14 August
Mostly clear. High 76°, low 58°.
Pressure30.12 inHg
Wind6.7 mph E
Humidity58%
Visibility—
Dew point56°
Sat, 1568° / 60°0
68 °
Campton Hills, Saturday, 15 August
Overcast. High 68°, low 60°.
Pressure30.30 inHg
Wind7.7 mph SW
Humidity67%
Visibility—
Dew point56°
Sun, 1674° / 60°0
74 °
Campton Hills, Sunday, 16 August
Overcast. High 74°, low 60°.
Pressure30.15 inHg
Wind5 mph E
Humidity70%
Visibility—
Dew point59°
Mon, 1777° / 63°0.01
77 °
Campton Hills, Monday, 17 August
Light rain. High 77°, low 63°.
Pressure30.06 inHg
Wind4.7 mph W
Humidity74%
Visibility—
Dew point64°
Tue, 1880° / 64°0
80 °
Campton Hills, Tuesday, 18 August
Overcast. High 80°, low 64°.
Pressure29.97 inHg
Wind11.9 mph SW
Humidity73%
Visibility—
Dew point67°
Wed, 1973° / 58°0.02
73 °
Campton Hills, Wednesday, 19 August
Light rain. High 73°, low 58°.
Pressure29.94 inHg
Wind15.1 mph NW
Humidity82%
Visibility—
Dew point59°
Thu, 2065° / 51°0
65 °
Campton Hills, Thursday, 20 August
Overcast. High 65°, low 51°.
Pressure30.09 inHg
Wind14.5 mph N
Humidity79%
Visibility—
Dew point53°
Fri, 2173° / 52°0
73 °
Campton Hills, Friday, 21 August
Clear. High 73°, low 52°.
Pressure30.09 inHg
Wind7.4 mph NW
Humidity61%
Visibility—
Dew point55°
Sat, 2269° / 54°0.01
69 °
Campton Hills, Saturday, 22 August
Light rain. High 69°, low 54°.
Pressure29.91 inHg
Wind13.2 mph S
Humidity88%
Visibility—
Dew point56°
Sun, 2378° / 62°0
78 °
Campton Hills, Sunday, 23 August
Clear. High 78°, low 62°.
Pressure29.91 inHg
Wind13.3 mph W
Humidity53%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 64°0.13
80 °
Campton Hills, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation25%
Record high98° (2023)
Record low54° (1966)
Tue, 2580° / 64°0.08
80 °
Campton Hills, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation25%
Record high92° (2003)
Record low53° (2025)
Wed, 2680° / 65°0.16
80 °
Campton Hills, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.16 in
Chance of precipitation33%
Record high95° (2024)
Record low51° (2025)
Thu, 2780° / 65°0.11
80 °
Campton Hills, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.11 in
Chance of precipitation28%
Record high96° (2024)
Record low53° (2025)
Fri, 2880° / 65°0.13
80 °
Campton Hills, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.13 in
Chance of precipitation38%
Record high93° (1984)
Record low47° (1986)
Sat, 2980° / 64°0.13
80 °
Campton Hills, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation28%
Record high94° (1984)
Record low46° (1986)
Sun, 3079° / 63°0.11
79 °
Campton Hills, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.11 in
Chance of precipitation28%
Record high94° (2013)
Record low52° (1986)
Mon, 3179° / 63°0.09
79 °
Campton Hills, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.09 in
Chance of precipitation20%
Record high90° (2012)
Record low51° (2009)
Tue, 0178° / 63°0.12
78 °
Campton Hills, 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 low49° (2009)
Wed, 0278° / 63°0.04
78 °
Campton Hills, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.04 in
Chance of precipitation23%
Record high92° (2008)
Record low49° (1967)
Thu, 0378° / 63°0.09
78 °
Campton Hills, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.09 in
Chance of precipitation27%
Record high93° (2023)
Record low47° (1974)
Fri, 0477° / 62°0.1
77 °
Campton Hills, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.1 in
Chance of precipitation32%
Record high92° (2023)
Record low47° (1974)
Sat, 0577° / 61°0.07
77 °
Campton Hills, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.07 in
Chance of precipitation20%
Record high89° (2023)
Record low50° (1962)
Sun, 0677° / 61°0.12
77 °
Campton Hills, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.12 in
Chance of precipitation35%
Record high91° (1990)
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 Campton Hills, 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 Campton Hills, 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.