Monthly outlook for Marywood, IL: average high 78.2°, average low 62.1°. That is 1° below the climate normal for August. Precipitation is expected on 10 days (about 3.0 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 10 August (90.9°), the coolest 23 August (54.9°).
78.2°/62.1°
Average high / low
−1°
Below normal
10 / 5
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
79.3°
80.1°
-0.5°
19 August – 28 August
76.5°
80.2°
-2.1°
29 August – 7 September
at normal
78.5°
—
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 (2 mi).
Mon, 1091° / 72°0.52
91 °
Marywood, Monday, 10 August
Rain. High 91°, low 72°.
Pressure29.88 inHg
Wind3.6 mph S
Humidity76%
Visibility6.2 mi
Dew point76°
Tue, 1186° / 65°0.65
86 °
Marywood, Tuesday, 11 August
Heavy rain. High 86°, low 65°.
Pressure29.83 inHg
Wind10.8 mph S
Humidity77%
Visibility6.2 mi
Dew point75°
Wed, 1283° / 64°0
83 °
Marywood, Wednesday, 12 August
Light rain. High 83°, low 64°.
Pressure29.85 inHg
Wind2.4 mph NW
Humidity67%
Visibility6.2 mi
Dew point68°
Thu, 1373° / 64°0.15
73 °
Marywood, Thursday, 13 August
Light rain. High 73°, low 64°.
Pressure29.94 inHg
Wind8.4 mph NE
Humidity73%
Visibility—
Dew point63°
Fri, 1474° / 61°0
74 °
Marywood, Friday, 14 August
Overcast. High 74°, low 61°.
Pressure30.12 inHg
Wind14 mph E
Humidity57%
Visibility—
Dew point56°
Sat, 1572° / 63°0.06
72 °
Marywood, Saturday, 15 August
Light rain. High 72°, low 63°.
Pressure30.21 inHg
Wind15.4 mph SE
Humidity66%
Visibility—
Dew point58°
Sun, 1674° / 64°0.26
74 °
Marywood, Sunday, 16 August
Rain. High 74°, low 64°.
Pressure30.00 inHg
Wind13 mph NW
Humidity85%
Visibility—
Dew point68°
Mon, 1775° / 62°0
75 °
Marywood, Monday, 17 August
Overcast. High 75°, low 62°.
Pressure30.12 inHg
Wind8.5 mph N
Humidity69%
Visibility—
Dew point59°
Tue, 1877° / 58°0
77 °
Marywood, Tuesday, 18 August
Overcast. High 77°, low 58°.
Pressure29.91 inHg
Wind9 mph S
Humidity80%
Visibility—
Dew point62°
Wed, 1975° / 62°0.04
75 °
Marywood, Wednesday, 19 August
Light rain. High 75°, low 62°.
Pressure29.83 inHg
Wind14.4 mph NW
Humidity68%
Visibility—
Dew point63°
Thu, 2073° / 60°0.26
73 °
Marywood, Thursday, 20 August
Rain. High 73°, low 60°.
Pressure29.94 inHg
Wind5.3 mph N
Humidity75%
Visibility—
Dew point63°
Fri, 2181° / 60°0.65
81 °
Marywood, Friday, 21 August
Heavy rain. High 81°, low 60°.
Pressure29.83 inHg
Wind15.5 mph S
Humidity68%
Visibility—
Dew point64°
Sat, 2279° / 62°0.04
79 °
Marywood, Saturday, 22 August
Light rain. High 79°, low 62°.
Pressure29.80 inHg
Wind13.8 mph NW
Humidity59%
Visibility—
Dew point62°
Sun, 2374° / 55°0
74 °
Marywood, Sunday, 23 August
Clear. High 74°, low 55°.
Pressure30.15 inHg
Wind8 mph N
Humidity57%
Visibility—
Dew point54°
Mon, 2477° / 59°0
77 °
Marywood, Monday, 24 August
Clear. High 77°, low 59°.
Pressure30.21 inHg
Wind6.2 mph SW
Humidity65%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 64°0.09
81 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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 °
Marywood, 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)
Mon, 0778° / 61°0.11
78 °
Marywood, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.11 in
Chance of precipitation28%
Record high92° (1960)
Record low47° (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 Marywood, 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 Marywood, 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.