Monthly outlook for Elburn, IL: average high 76.4°, average low 61°. That is 2.1° below the climate normal for August. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 9 August (88.6°), the coolest 20 August (51.4°).
76.4°/61°
Average high / low
−2.1°
Below normal
2 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
78.5°
80.3°
-1°
18 August – 27 August
72.9°
80.2°
-4.1°
28 August – 6 September
at normal
78.7°
—
August records over 66 years
98.4°24 August 2023All-time high
44.4°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Aurora (12 mi).
Sun, 0989° / 61°0.47
89 °
Elburn, Sunday, 9 August
Rain. High 89°, low 61°.
Pressure29.94 inHg
Wind12.3 mph S
Humidity80%
Visibility6.2 mi
Dew point74°
Mon, 1087° / 69°0.46
87 °
Elburn, Monday, 10 August
Heavy rain. High 87°, low 69°.
Pressure29.91 inHg
Wind6.8 mph E
Humidity75%
Visibility6.2 mi
Dew point74°
Tue, 1184° / 70°0.02
84 °
Elburn, Tuesday, 11 August
Light rain. High 84°, low 70°.
Pressure29.77 inHg
Wind8.6 mph SW
Humidity80%
Visibility6.2 mi
Dew point72°
Wed, 1278° / 65°0.02
78 °
Elburn, Wednesday, 12 August
Light rain. High 78°, low 65°.
Pressure29.88 inHg
Wind7.2 mph NW
Humidity79%
Visibility6.2 mi
Dew point69°
Thu, 1372° / 60°0
72 °
Elburn, Thursday, 13 August
Overcast. High 72°, low 60°.
Pressure30.03 inHg
Wind8.7 mph E
Humidity65%
Visibility—
Dew point58°
Fri, 1476° / 58°0
76 °
Elburn, Friday, 14 August
Clear. High 76°, low 58°.
Pressure30.12 inHg
Wind6.8 mph E
Humidity59%
Visibility—
Dew point57°
Sat, 1567° / 60°0.01
67 °
Elburn, Saturday, 15 August
Light rain. High 67°, low 60°.
Pressure30.30 inHg
Wind6.9 mph SE
Humidity72%
Visibility—
Dew point57°
Sun, 1673° / 60°0
73 °
Elburn, Sunday, 16 August
Overcast. High 73°, low 60°.
Pressure30.15 inHg
Wind5.5 mph SE
Humidity71%
Visibility—
Dew point59°
Mon, 1777° / 63°0
77 °
Elburn, Monday, 17 August
Light rain. High 77°, low 63°.
Pressure30.06 inHg
Wind4.5 mph W
Humidity75%
Visibility—
Dew point65°
Tue, 1880° / 64°0
80 °
Elburn, Tuesday, 18 August
Overcast. High 80°, low 64°.
Pressure29.97 inHg
Wind11.4 mph SW
Humidity72%
Visibility—
Dew point67°
Wed, 1973° / 59°0.02
73 °
Elburn, Wednesday, 19 August
Light rain. High 73°, low 59°.
Pressure29.94 inHg
Wind13.9 mph NW
Humidity81%
Visibility—
Dew point59°
Thu, 2064° / 51°0.01
64 °
Elburn, Thursday, 20 August
Light rain. High 64°, low 51°.
Pressure30.09 inHg
Wind14.5 mph N
Humidity80%
Visibility—
Dew point54°
Fri, 2173° / 52°0
73 °
Elburn, Friday, 21 August
Mostly clear. High 73°, low 52°.
Pressure30.09 inHg
Wind7.2 mph E
Humidity63%
Visibility—
Dew point56°
Sat, 2269° / 54°0.01
69 °
Elburn, Saturday, 22 August
Light rain. High 69°, low 54°.
Pressure29.88 inHg
Wind13.1 mph S
Humidity86%
Visibility—
Dew point56°
Sun, 2378° / 63°0
78 °
Elburn, Sunday, 23 August
Clear. High 78°, low 63°.
Pressure29.91 inHg
Wind12.7 mph W
Humidity54%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 64°0.13
80 °
Elburn, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation33%
Record high98° (2023)
Record low53° (1967)
Tue, 2581° / 64°0.09
81 °
Elburn, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation28%
Record high92° (2003)
Record low52° (2017)
Wed, 2681° / 65°0.18
81 °
Elburn, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.18 in
Chance of precipitation35%
Record high95° (2024)
Record low49° (1964)
Thu, 2781° / 65°0.13
81 °
Elburn, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation27%
Record high96° (2024)
Record low52° (2025)
Fri, 2880° / 65°0.13
80 °
Elburn, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.13 in
Chance of precipitation35%
Record high92° (1984)
Record low47° (1986)
Sat, 2980° / 64°0.14
80 °
Elburn, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.14 in
Chance of precipitation30%
Record high94° (1984)
Record low44° (1965)
Sun, 3079° / 63°0.08
79 °
Elburn, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.08 in
Chance of precipitation28%
Record high93° (2013)
Record low50° (1986)
Mon, 3179° / 63°0.08
79 °
Elburn, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.08 in
Chance of precipitation18%
Record high89° (2012)
Record low50° (2009)
Tue, 0179° / 62°0.13
79 °
Elburn, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.13 in
Chance of precipitation32%
Record high93° (2011)
Record low46° (2009)
Wed, 0279° / 63°0.05
79 °
Elburn, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.05 in
Chance of precipitation22%
Record high92° (2008)
Record low47° (1965)
Thu, 0379° / 63°0.09
79 °
Elburn, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.09 in
Chance of precipitation28%
Record high93° (2023)
Record low47° (1974)
Fri, 0478° / 62°0.1
78 °
Elburn, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.1 in
Chance of precipitation28%
Record high92° (2023)
Record low46° (1974)
Sat, 0578° / 61°0.07
78 °
Elburn, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation20%
Record high90° (2023)
Record low49° (2010)
Sun, 0677° / 61°0.1
77 °
Elburn, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.1 in
Chance of precipitation38%
Record high91° (1990)
Record low46° (1962)
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 Elburn, 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 Elburn, 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.