As of 00:21 CDT

Weather in Warrenville, IL

66°Current weather

Warrenville, Sunday, 9 August, 00:21

Clear. Feels like 66°. High 89°, low 63°.

Pressure30.03 inHg
Wind1.6 mph NW
Humidity84%
Visibility6.2 mi
Dew point61°

Monthly outlook for Warrenville, IL: average high 77.3°, average low 62.2°. That is 1.6° below the climate normal for August. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 9 August (88.5°), the coolest 20 August (53.6°).

77.3°/62.2°
Average high / low
−1.6°
Below normal
2 / 6
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August79.3°80.4°-0.6°
19 August – 28 August74°80.4°-3.6°
29 August – 7 Septemberat normal78.7°

August records over 66 years

98.1°24 August 2023All-time high
44.2°29 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Naperville (5 mi).

Mon, 1088° / 71°0.46Heavy rain
88 °Heavy rain

Warrenville, Monday, 10 August

Heavy rain. High 88°, low 71°.

Pressure29.91 inHg
Wind4.5 mph SE
Humidity70%
Visibility6.2 mi
Dew point73°
Tue, 1184° / 70°0.02Light rain
84 °Light rain

Warrenville, Tuesday, 11 August

Light rain. High 84°, low 70°.

Pressure29.80 inHg
Wind7.4 mph SW
Humidity89%
Visibility6.2 mi
Dew point71°
Wed, 1280° / 67°0.01Light rain
80 °Light rain

Warrenville, Wednesday, 12 August

Light rain. High 80°, low 67°.

Pressure29.85 inHg
Wind5.9 mph NW
Humidity68%
Visibility6.2 mi
Dew point68°
Thu, 1375° / 62°0Overcast
75 °Overcast

Warrenville, Thursday, 13 August

Overcast. High 75°, low 62°.

Pressure30.00 inHg
Wind10.3 mph NE
Humidity54%
Visibility
Dew point56°
Fri, 1478° / 60°0Clear
78 °Clear

Warrenville, Friday, 14 August

Clear. High 78°, low 60°.

Pressure30.09 inHg
Wind8.4 mph N
Humidity46%
Visibility
Dew point53°
Sat, 1567° / 61°0Overcast
67 °Overcast

Warrenville, Saturday, 15 August

Overcast. High 67°, low 61°.

Pressure30.30 inHg
Wind6.8 mph SW
Humidity71%
Visibility
Dew point56°
Sun, 1674° / 63°0Overcast
74 °Overcast

Warrenville, Sunday, 16 August

Overcast. High 74°, low 63°.

Pressure30.15 inHg
Wind5.1 mph S
Humidity70%
Visibility
Dew point59°
Mon, 1777° / 64°0Overcast
77 °Overcast

Warrenville, Monday, 17 August

Overcast. High 77°, low 64°.

Pressure30.06 inHg
Wind5.9 mph W
Humidity69%
Visibility
Dew point64°
Tue, 1881° / 65°0Overcast
81 °Overcast

Warrenville, Tuesday, 18 August

Overcast. High 81°, low 65°.

Pressure29.97 inHg
Wind11.2 mph SW
Humidity68%
Visibility
Dew point66°
Wed, 1974° / 60°0.02Light rain
74 °Light rain

Warrenville, Wednesday, 19 August

Light rain. High 74°, low 60°.

Pressure29.94 inHg
Wind13.7 mph NW
Humidity78%
Visibility
Dew point60°
Thu, 2066° / 54°0Light rain
66 °Light rain

Warrenville, Thursday, 20 August

Light rain. High 66°, low 54°.

Pressure30.06 inHg
Wind11.6 mph N
Humidity74%
Visibility
Dew point53°
Fri, 2175° / 54°0Clear
75 °Clear

Warrenville, Friday, 21 August

Clear. High 75°, low 54°.

Pressure30.06 inHg
Wind6.4 mph N
Humidity55%
Visibility
Dew point54°
Sat, 2271° / 56°0Light rain
71 °Light rain

Warrenville, Saturday, 22 August

Light rain. High 71°, low 56°.

Pressure29.91 inHg
Wind11.5 mph S
Humidity81%
Visibility
Dew point57°
Sun, 2380° / 64°0Clear
80 °Clear

Warrenville, Sunday, 23 August

Clear. High 80°, low 64°.

Pressure29.91 inHg
Wind12.1 mph W
Humidity50%
Visibility
Dew point57°
Mon, 2478° / 61°0.01Light rain
78 °Light rain

Warrenville, Monday, 24 August

Light rain. High 78°, low 61°.

Pressure30.03 inHg
Wind6.7 mph SW
Humidity65%
Visibility
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 64°0.09Climate normal
81 °Climate normal

Warrenville, 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° (1977)
Wed, 2681° / 65°0.19Climate normal
81 °Climate normal

Warrenville, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.19 in
Chance of precipitation35%
Record high94° (2024)
Record low50° (1964)
Thu, 2781° / 65°0.13Climate normal
81 °Climate normal

Warrenville, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation25%
Record high96° (2024)
Record low52° (2025)
Fri, 2880° / 65°0.11Climate normal
80 °Climate normal

Warrenville, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°
Average low65°
Average precipitation0.11 in
Chance of precipitation33%
Record high93° (1984)
Record low47° (1986)
Sat, 2980° / 64°0.13Climate normal
80 °Climate normal

Warrenville, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation33%
Record high94° (1984)
Record low44° (1986)
Sun, 3079° / 63°0.08Climate normal
79 °Climate normal

Warrenville, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.08 in
Chance of precipitation30%
Record high93° (2013)
Record low49° (1986)
Mon, 3179° / 63°0.07Climate normal
79 °Climate normal

Warrenville, Monday, 31 August

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.07 in
Chance of precipitation18%
Record high89° (2012)
Record low50° (2009)
Tue, 0179° / 62°0.13Climate normal
79 °Climate normal

Warrenville, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.13 in
Chance of precipitation32%
Record high94° (2011)
Record low47° (2009)
Wed, 0279° / 63°0.05Climate normal
79 °Climate normal

Warrenville, 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° (2017)
Thu, 0379° / 63°0.09Climate normal
79 °Climate normal

Warrenville, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.09 in
Chance of precipitation25%
Record high93° (2023)
Record low47° (1974)
Fri, 0478° / 62°0.1Climate normal
78 °Climate normal

Warrenville, Friday, 4 September

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.1 in
Chance of precipitation27%
Record high91° (2023)
Record low46° (1974)
Sat, 0578° / 61°0.07Climate normal
78 °Climate normal

Warrenville, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation22%
Record high89° (1983)
Record low49° (2010)
Sun, 0677° / 61°0.11Climate normal
77 °Climate normal

Warrenville, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high77°
Average low61°
Average precipitation0.11 in
Chance of precipitation42%
Record high91° (1990)
Record low46° (1988)
Mon, 0778° / 61°0.11Climate normal
78 °Climate normal

Warrenville, Monday, 7 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.11 in
Chance of precipitation30%
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 Warrenville, 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 Warrenville, 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.