As of 18:33 CDT

Weather in Phoenix, IL

80°Current weather

Phoenix, Saturday, 8 August, 18:33

Clear. Feels like 80°. High 83°, low 69°.

Pressure29.97 inHg
Wind2 mph NE
Humidity67%
Visibility6.2 mi
Dew point68°

Monthly outlook for Phoenix, IL: average high 78.9°, average low 65.9°. That is 0.6° below the climate normal for August. Precipitation is expected on 6 days (about 2.7 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 11 August (86.4°), the coolest 23 August (55.9°).

78.9°/65.9°
Average high / low
−0.6°
Below normal
6 / 6
Wet days / normal
2.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August79.5°80.2°-0.4°
18 August – 27 August77.9°80.1°-1.2°
28 August – 6 Septemberat normal78.6°

August records over 66 years

98.1°24 August 2023All-time high
49.3°29 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Calumet Park (4 mi).

Sun, 0983° / 66°1.73Heavy rain
83 °Heavy rain

Phoenix, Sunday, 9 August

Heavy rain. High 83°, low 66°.

Pressure29.91 inHg
Wind6 mph SW
Humidity75%
Visibility6.2 mi
Dew point73°
Mon, 1082° / 73°0.11Rain
82 °Rain

Phoenix, Monday, 10 August

Rain. High 82°, low 73°.

Pressure29.91 inHg
Wind4.8 mph SE
Humidity70%
Visibility6.2 mi
Dew point71°
Tue, 1186° / 73°0.19Rain
86 °Rain

Phoenix, Tuesday, 11 August

Rain. High 86°, low 73°.

Pressure29.77 inHg
Wind14.4 mph SW
Humidity67%
Visibility6.2 mi
Dew point71°
Wed, 1282° / 70°0.01Light rain
82 °Light rain

Phoenix, Wednesday, 12 August

Light rain. High 82°, low 70°.

Pressure29.85 inHg
Wind6 mph NE
Humidity66%
Visibility6.2 mi
Dew point65°
Thu, 1372° / 65°0.02Light rain
72 °Light rain

Phoenix, Thursday, 13 August

Light rain. High 72°, low 65°.

Pressure29.94 inHg
Wind10.6 mph NE
Humidity66%
Visibility
Dew point59°
Fri, 1474° / 62°0Clear
74 °Clear

Phoenix, Friday, 14 August

Clear. High 74°, low 62°.

Pressure30.18 inHg
Wind10.6 mph NE
Humidity47%
Visibility
Dew point51°
Sat, 1577° / 59°0Overcast
77 °Overcast

Phoenix, Saturday, 15 August

Overcast. High 77°, low 59°.

Pressure30.33 inHg
Wind5.6 mph S
Humidity45%
Visibility
Dew point50°
Sun, 1679° / 60°0Mostly clear
79 °Mostly clear

Phoenix, Sunday, 16 August

Mostly clear. High 79°, low 60°.

Pressure30.21 inHg
Wind9.6 mph S
Humidity49%
Visibility
Dew point55°
Mon, 1776° / 69°0.11Light rain
76 °Light rain

Phoenix, Monday, 17 August

Light rain. High 76°, low 69°.

Pressure30.00 inHg
Wind6.1 mph S
Humidity89%
Visibility
Dew point68°
Tue, 1883° / 69°0Partly cloudy
83 °Partly cloudy

Phoenix, Tuesday, 18 August

Partly cloudy. High 83°, low 69°.

Pressure30.00 inHg
Wind8.6 mph NE
Humidity56%
Visibility
Dew point64°
Wed, 1985° / 67°0.4Rain
85 °Rain

Phoenix, Wednesday, 19 August

Rain. High 85°, low 67°.

Pressure29.91 inHg
Wind8.2 mph SW
Humidity58%
Visibility
Dew point66°
Thu, 2078° / 68°0.06Light rain
78 °Light rain

Phoenix, Thursday, 20 August

Light rain. High 78°, low 68°.

Pressure29.88 inHg
Wind9.4 mph N
Humidity66%
Visibility
Dew point65°
Fri, 2178° / 66°0Partly cloudy
78 °Partly cloudy

Phoenix, Friday, 21 August

Partly cloudy. High 78°, low 66°.

Pressure29.97 inHg
Wind9.4 mph NE
Humidity55%
Visibility
Dew point59°
Sat, 2278° / 63°0.02Light rain
78 °Light rain

Phoenix, Saturday, 22 August

Light rain. High 78°, low 63°.

Pressure29.91 inHg
Wind14.7 mph N
Humidity64%
Visibility
Dew point63°
Sun, 2366° / 56°0Mostly clear
66 °Mostly clear

Phoenix, Sunday, 23 August

Mostly clear. High 66°, low 56°.

Pressure30.24 inHg
Wind12.4 mph NE
Humidity43%
Visibility
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 66°0.14Climate normal
80 °Climate normal

Phoenix, Monday, 24 August

Climate normal for this date — 60-year average.

Average high80°
Average low66°
Average precipitation0.14 in
Chance of precipitation28%
Record high98° (2023)
Record low57° (1966)
Tue, 2580° / 66°0.07Climate normal
80 °Climate normal

Phoenix, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°
Average low66°
Average precipitation0.07 in
Chance of precipitation27%
Record high92° (2021)
Record low53° (2017)
Wed, 2681° / 67°0.17Climate normal
81 °Climate normal

Phoenix, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°
Average low67°
Average precipitation0.17 in
Chance of precipitation35%
Record high94° (2024)
Record low54° (2025)
Thu, 2781° / 67°0.14Climate normal
81 °Climate normal

Phoenix, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°
Average low67°
Average precipitation0.14 in
Chance of precipitation37%
Record high96° (2024)
Record low54° (2025)
Fri, 2880° / 67°0.15Climate normal
80 °Climate normal

Phoenix, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°
Average low67°
Average precipitation0.15 in
Chance of precipitation37%
Record high92° (1984)
Record low51° (1986)
Sat, 2980° / 66°0.1Climate normal
80 °Climate normal

Phoenix, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°
Average low66°
Average precipitation0.1 in
Chance of precipitation28%
Record high93° (1984)
Record low49° (1965)
Sun, 3079° / 66°0.09Climate normal
79 °Climate normal

Phoenix, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high79°
Average low66°
Average precipitation0.09 in
Chance of precipitation30%
Record high92° (2013)
Record low54° (1986)
Mon, 3179° / 65°0.06Climate normal
79 °Climate normal

Phoenix, Monday, 31 August

Climate normal for this date — 60-year average.

Average high79°
Average low65°
Average precipitation0.06 in
Chance of precipitation23%
Record high89° (2012)
Record low55° (2023)
Tue, 0179° / 65°0.13Climate normal
79 °Climate normal

Phoenix, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high79°
Average low65°
Average precipitation0.13 in
Chance of precipitation30%
Record high94° (2011)
Record low54° (1967)
Wed, 0279° / 65°0.06Climate normal
79 °Climate normal

Phoenix, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°
Average low65°
Average precipitation0.06 in
Chance of precipitation27%
Record high92° (2011)
Record low52° (1965)
Thu, 0379° / 65°0.07Climate normal
79 °Climate normal

Phoenix, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high79°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high93° (2023)
Record low53° (1974)
Fri, 0478° / 64°0.09Climate normal
78 °Climate normal

Phoenix, Friday, 4 September

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.09 in
Chance of precipitation33%
Record high91° (2023)
Record low50° (2025)
Sat, 0578° / 64°0.07Climate normal
78 °Climate normal

Phoenix, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.07 in
Chance of precipitation27%
Record high90° (2023)
Record low53° (2010)
Sun, 0677° / 64°0.1Climate normal
77 °Climate normal

Phoenix, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high77°
Average low64°
Average precipitation0.1 in
Chance of precipitation37%
Record high91° (1990)
Record low49° (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 Phoenix, 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 Phoenix, 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.