As of 18:40 CDT

Weather in Winfield, IL

80°Current weather

Winfield, Saturday, 8 August, 18:40

Clear. Feels like 82°. High 82°, low 68°.

Pressure30.00 inHg
Wind2 mph SW
Humidity60%
Visibility6.2 mi
Dew point65°

Monthly outlook for Winfield, IL: average high 78°, average low 63.5°. That is 1.1° below the climate normal for August. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 9 August (84.1°), the coolest 23 August (55°).

78°/63.5°
Average high / low
−1.1°
Below normal
5 / 6
Wet days / normal
2.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August78.7°80.1°-0.8°
18 August – 27 August76.8°79.9°-1.7°
28 August – 6 Septemberat normal78.4°

August records over 66 years

99.3°24 August 2023All-time high
45.1°29 August 1965All-time low

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

Sun, 0984° / 64°1.43Heavy rain
84 °Heavy rain

Winfield, Sunday, 9 August

Heavy rain. High 84°, low 64°.

Pressure29.91 inHg
Wind7 mph E
Humidity97%
Visibility3.2 mi
Dew point68°
Mon, 1082° / 71°0.07Light rain
82 °Light rain

Winfield, Monday, 10 August

Light rain. High 82°, low 71°.

Pressure29.91 inHg
Wind6.9 mph SE
Humidity71%
Visibility6.2 mi
Dew point71°
Tue, 1183° / 71°0.2Rain
83 °Rain

Winfield, Tuesday, 11 August

Rain. High 83°, low 71°.

Pressure29.80 inHg
Wind8.9 mph W
Humidity81%
Visibility6.2 mi
Dew point72°
Wed, 1281° / 67°0.01Light rain
81 °Light rain

Winfield, Wednesday, 12 August

Light rain. High 81°, low 67°.

Pressure29.85 inHg
Wind4.9 mph NW
Humidity82%
Visibility6.2 mi
Dew point68°
Thu, 1373° / 61°0.05Light rain
73 °Light rain

Winfield, Thursday, 13 August

Light rain. High 73°, low 61°.

Pressure29.94 inHg
Wind12.8 mph E
Humidity67%
Visibility
Dew point60°
Fri, 1475° / 58°0Clear
75 °Clear

Winfield, Friday, 14 August

Clear. High 75°, low 58°.

Pressure30.18 inHg
Wind8.2 mph N
Humidity50%
Visibility
Dew point52°
Sat, 1574° / 56°0Overcast
74 °Overcast

Winfield, Saturday, 15 August

Overcast. High 74°, low 56°.

Pressure30.33 inHg
Wind6.4 mph SW
Humidity57%
Visibility
Dew point55°
Sun, 1676° / 58°0Partly cloudy
76 °Partly cloudy

Winfield, Sunday, 16 August

Partly cloudy. High 76°, low 58°.

Pressure30.21 inHg
Wind10.8 mph S
Humidity63%
Visibility
Dew point59°
Mon, 1776° / 65°0.02Light rain
76 °Light rain

Winfield, Monday, 17 August

Light rain. High 76°, low 65°.

Pressure30.00 inHg
Wind6 mph S
Humidity83%
Visibility
Dew point67°
Tue, 1884° / 68°0Overcast
84 °Overcast

Winfield, Tuesday, 18 August

Overcast. High 84°, low 68°.

Pressure30.00 inHg
Wind8.3 mph NE
Humidity56%
Visibility
Dew point64°
Wed, 1981° / 65°0.31Rain
81 °Rain

Winfield, Wednesday, 19 August

Rain. High 81°, low 65°.

Pressure29.91 inHg
Wind10.6 mph SW
Humidity71%
Visibility
Dew point69°
Thu, 2076° / 66°0.02Light rain
76 °Light rain

Winfield, Thursday, 20 August

Light rain. High 76°, low 66°.

Pressure29.88 inHg
Wind9.2 mph N
Humidity70%
Visibility
Dew point65°
Fri, 2180° / 63°0.02Light rain
80 °Light rain

Winfield, Friday, 21 August

Light rain. High 80°, low 63°.

Pressure29.97 inHg
Wind6.6 mph NE
Humidity56%
Visibility
Dew point60°
Sat, 2273° / 59°0.01Light rain
73 °Light rain

Winfield, Saturday, 22 August

Light rain. High 73°, low 59°.

Pressure29.94 inHg
Wind16 mph N
Humidity79%
Visibility
Dew point62°
Sun, 2367° / 55°0Clear
67 °Clear

Winfield, Sunday, 23 August

Clear. High 67°, low 55°.

Pressure30.24 inHg
Wind12.6 mph NE
Humidity47%
Visibility
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 64°0.13Climate normal
80 °Climate normal

Winfield, Monday, 24 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation27%
Record high99° (2023)
Record low53° (1967)
Tue, 2580° / 64°0.07Climate normal
80 °Climate normal

Winfield, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.07 in
Chance of precipitation25%
Record high92° (2003)
Record low52° (2017)
Wed, 2681° / 65°0.15Climate normal
81 °Climate normal

Winfield, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.15 in
Chance of precipitation32%
Record high95° (2024)
Record low51° (1964)
Thu, 2780° / 66°0.11Climate normal
80 °Climate normal

Winfield, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high80°
Average low66°
Average precipitation0.11 in
Chance of precipitation30%
Record high97° (2024)
Record low54° (2015)
Fri, 2880° / 65°0.13Climate normal
80 °Climate normal

Winfield, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°
Average low65°
Average precipitation0.13 in
Chance of precipitation37%
Record high93° (1984)
Record low48° (1986)
Sat, 2980° / 64°0.11Climate normal
80 °Climate normal

Winfield, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation30%
Record high94° (1984)
Record low45° (1965)
Sun, 3079° / 63°0.13Climate normal
79 °Climate normal

Winfield, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.13 in
Chance of precipitation28%
Record high93° (2013)
Record low51° (1986)
Mon, 3178° / 63°0.08Climate normal
78 °Climate normal

Winfield, Monday, 31 August

Climate normal for this date — 60-year average.

Average high78°
Average low63°
Average precipitation0.08 in
Chance of precipitation18%
Record high90° (2012)
Record low51° (2009)
Tue, 0178° / 63°0.12Climate normal
78 °Climate normal

Winfield, 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 low47° (2009)
Wed, 0279° / 63°0.04Climate normal
79 °Climate normal

Winfield, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.04 in
Chance of precipitation22%
Record high92° (2008)
Record low48° (1965)
Thu, 0378° / 63°0.09Climate normal
78 °Climate normal

Winfield, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high78°
Average low63°
Average precipitation0.09 in
Chance of precipitation30%
Record high94° (2023)
Record low48° (1974)
Fri, 0477° / 62°0.09Climate normal
77 °Climate normal

Winfield, Friday, 4 September

Climate normal for this date — 60-year average.

Average high77°
Average low62°
Average precipitation0.09 in
Chance of precipitation32%
Record high92° (2023)
Record low47° (1974)
Sat, 0577° / 61°0.08Climate normal
77 °Climate normal

Winfield, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high77°
Average low61°
Average precipitation0.08 in
Chance of precipitation23%
Record high90° (2023)
Record low50° (2010)
Sun, 0677° / 61°0.11Climate normal
77 °Climate normal

Winfield, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high77°
Average low61°
Average precipitation0.11 in
Chance of precipitation37%
Record high91° (1990)
Record low47° (1988)

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 Winfield, 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 Winfield, 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.