As of 06:34 CDT

Weather in Yorkville, IL

65°

Yorkville, Sunday, 9 August, 06:34

Clear. Feels like 66°. High 85°, low 64°.

Pressure30.00 inHg

Wind2 mph SE

Humidity97%

Visibility6.2 mi

Dew point65°

See detailed hourly forecast

Monthly outlook for Yorkville, IL: average high 82.5°, average low 65.9°. That is 1.3° above the climate normal for August. Precipitation is expected on 8 days (about 0.9 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 22 August (91.3°), the coolest 14 August (57.7°).

82.5°/65.9°

Average high / low

+1.3°

Above normal

8 / 5

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	79.8°	80.1°	-0.2°
19 August – 28 August	86.9°	80.2°	+3.7°
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 (11 mi).

Mon, 1090° / 71°

0.13

90 °

Yorkville, Monday, 10 August

Rain. High 90°, low 71°.

Pressure29.88 inHg

Wind5.9 mph NW

Humidity80%

Visibility6.2 mi

Dew point77°

Tue, 1182° / 70°

0.13

82 °

Yorkville, Tuesday, 11 August

Rain. High 82°, low 70°.

Pressure29.83 inHg

Wind5.1 mph SW

Humidity81%

Visibility6.2 mi

Dew point71°

Wed, 1283° / 68°

0.02

83 °

Yorkville, Wednesday, 12 August

Light rain. High 83°, low 68°.

Pressure29.85 inHg

Wind4.3 mph W

Humidity75%

Visibility6.2 mi

Dew point72°

Thu, 1376° / 61°

0.19

76 °

Yorkville, Thursday, 13 August

Rain. High 76°, low 61°.

Pressure30.03 inHg

Wind8.7 mph E

Humidity64%

Visibility—

Dew point61°

Fri, 1475° / 58°

0.06

75 °

Yorkville, Friday, 14 August

Light rain. High 75°, low 58°.

Pressure30.15 inHg

Wind9.3 mph E

Humidity58%

Visibility—

Dew point56°

Sat, 1575° / 59°

0.04

75 °

Yorkville, Saturday, 15 August

Light rain. High 75°, low 59°.

Pressure30.24 inHg

Wind10.2 mph SE

Humidity65%

Visibility—

Dew point59°

Sun, 1676° / 62°

0.03

76 °

Yorkville, Sunday, 16 August

Light rain. High 76°, low 62°.

Pressure30.09 inHg

Wind6.5 mph SE

Humidity77%

Visibility—

Dew point65°

Mon, 1780° / 64°

0.01

80 °

Yorkville, Monday, 17 August

Light rain. High 80°, low 64°.

Pressure30.09 inHg

Wind7 mph E

Humidity72%

Visibility—

Dew point67°

Tue, 1877° / 63°

77 °

Yorkville, Tuesday, 18 August

Overcast. High 77°, low 63°.

Pressure30.03 inHg

Wind6.2 mph SE

Humidity88%

Visibility—

Dew point67°

Wed, 1986° / 65°

0.07

86 °

Yorkville, Wednesday, 19 August

Light rain. High 86°, low 65°.

Pressure29.91 inHg

Wind16.7 mph S

Humidity75%

Visibility—

Dew point71°

Thu, 2086° / 74°

86 °

Yorkville, Thursday, 20 August

Overcast. High 86°, low 74°.

Pressure29.77 inHg

Wind7.7 mph SE

Humidity72%

Visibility—

Dew point74°

Fri, 2186° / 70°

86 °

Yorkville, Friday, 21 August

Mostly clear. High 86°, low 70°.

Pressure29.91 inHg

Wind13.9 mph NE

Humidity59%

Visibility—

Dew point67°

Sat, 2291° / 68°

91 °

Yorkville, Saturday, 22 August

Clear. High 91°, low 68°.

Pressure29.85 inHg

Wind9.6 mph S

Humidity72%

Visibility—

Dew point74°

Sun, 2389° / 70°

0.01

89 °

Yorkville, Sunday, 23 August

Light rain. High 89°, low 70°.

Pressure29.83 inHg

Wind11.7 mph NE

Humidity57%

Visibility—

Dew point70°

Mon, 2483° / 66°

0.15

83 °

Yorkville, Monday, 24 August

Rain. High 83°, low 66°.

Pressure30.03 inHg

Wind11 mph E

Humidity73%

Visibility—

Dew point70°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 2581° / 64°

0.09

81 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 °

Yorkville, 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 Yorkville, 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 Yorkville, 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.