As of 14:16 CDT

Weather in Bartlett, IL

82°

Bartlett, Saturday, 8 August, 14:16

Clear. Feels like 84°. High 83°, low 68°.

Pressure30.00 inHg

Wind5 mph W

Humidity55%

Visibility6.2 mi

Dew point64°

See detailed hourly forecast

Monthly outlook for Bartlett, IL: average high 77.6°, average low 62.6°. That is 1.2° below the climate normal for August. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 9 August (83.9°), the coolest 23 August (53.7°).

77.6°/62.6°

Average high / low

−1.2°

Below normal

4 / 6

Wet days / normal

2.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	78.5°	80°	-0.8°
18 August – 27 August	76.1°	79.9°	-2.1°
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 (7 mi).

Sun, 0984° / 64°

1.33

84 °

Bartlett, Sunday, 9 August

Heavy rain. High 84°, low 64°.

Pressure29.94 inHg

Wind7.2 mph E

Humidity95%

Visibility5.8 mi

Dew point64°

Mon, 1083° / 71°

0.09

83 °

Bartlett, Monday, 10 August

Rain. High 83°, low 71°.

Pressure29.88 inHg

Wind6.3 mph SE

Humidity73%

Visibility6.2 mi

Dew point70°

Tue, 1180° / 70°

0.31

80 °

Bartlett, Tuesday, 11 August

Rain. High 80°, low 70°.

Pressure29.80 inHg

Wind8 mph NW

Humidity81%

Visibility6.2 mi

Dew point72°

Wed, 1281° / 66°

81 °

Bartlett, Wednesday, 12 August

Overcast. High 81°, low 66°.

Pressure29.85 inHg

Wind5.1 mph N

Humidity77%

Visibility6.2 mi

Dew point67°

Thu, 1373° / 60°

0.04

73 °

Bartlett, Thursday, 13 August

Light rain. High 73°, low 60°.

Pressure29.94 inHg

Wind12.6 mph E

Humidity67%

Visibility—

Dew point60°

Fri, 1474° / 57°

74 °

Bartlett, Friday, 14 August

Clear. High 74°, low 57°.

Pressure30.18 inHg

Wind7.9 mph N

Humidity52%

Visibility—

Dew point52°

Sat, 1574° / 56°

74 °

Bartlett, Saturday, 15 August

Overcast. High 74°, low 56°.

Pressure30.33 inHg

Wind6.8 mph SW

Humidity57%

Visibility—

Dew point54°

Sun, 1676° / 58°

76 °

Bartlett, Sunday, 16 August

Partly cloudy. High 76°, low 58°.

Pressure30.18 inHg

Wind11.3 mph S

Humidity63%

Visibility—

Dew point59°

Mon, 1777° / 65°

0.01

77 °

Bartlett, Monday, 17 August

Light rain. High 77°, low 65°.

Pressure30.00 inHg

Wind6.4 mph S

Humidity83%

Visibility—

Dew point66°

Tue, 1882° / 67°

82 °

Bartlett, Tuesday, 18 August

Overcast. High 82°, low 67°.

Pressure30.00 inHg

Wind8.7 mph NE

Humidity58%

Visibility—

Dew point64°

Wed, 1981° / 64°

0.28

81 °

Bartlett, Wednesday, 19 August

Rain. High 81°, low 64°.

Pressure29.91 inHg

Wind11.3 mph SW

Humidity72%

Visibility—

Dew point69°

Thu, 2075° / 65°

0.01

75 °

Bartlett, Thursday, 20 August

Light rain. High 75°, low 65°.

Pressure29.91 inHg

Wind9.2 mph N

Humidity73%

Visibility—

Dew point64°

Fri, 2179° / 62°

0.01

79 °

Bartlett, Friday, 21 August

Light rain. High 79°, low 62°.

Pressure29.97 inHg

Wind6.9 mph NE

Humidity60%

Visibility—

Dew point61°

Sat, 2272° / 57°

0.01

72 °

Bartlett, Saturday, 22 August

Light rain. High 72°, low 57°.

Pressure29.97 inHg

Wind15.9 mph NE

Humidity82%

Visibility—

Dew point60°

Sun, 2367° / 54°

67 °

Bartlett, Sunday, 23 August

Clear. High 67°, low 54°.

Pressure30.24 inHg

Wind12.7 mph NE

Humidity49%

Visibility—

Dew point45°

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

Mon, 2480° / 64°

0.13

80 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 °

Bartlett, 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 Bartlett, 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 Bartlett, 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.