Monthly outlook for Oak Creek, WI: average high 76.4°, average low 66.1°. That is 0.6° below the climate normal for August. Precipitation is expected on 4 days (about 2.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 20 August (88.1°), the coolest 14 August (60°).
76.4°/66.1°
Average high / low
−0.6°
Below normal
4 / 5
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
75°
77.7°
-1.5°
19 August – 28 August
78.7°
77.5°
+0.7°
29 August – 7 September
at normal
75.8°
—
August records over 66 years
99.3°23 August 2023All-time high
49.5°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Milwaukee (13 mi).
Mon, 1085° / 69°0.08
85 °
Oak Creek, Monday, 10 August
Light rain. High 85°, low 69°.
Pressure29.91 inHg
Wind4.2 mph N
Humidity86%
Visibility6.2 mi
Dew point68°
Tue, 1179° / 67°1.3
79 °
Oak Creek, Tuesday, 11 August
Heavy rain. High 79°, low 67°.
Pressure29.85 inHg
Wind8.4 mph SE
Humidity92%
Visibility6.2 mi
Dew point67°
Wed, 1278° / 68°0
78 °
Oak Creek, Wednesday, 12 August
Overcast. High 78°, low 68°.
Pressure29.83 inHg
Wind8.1 mph N
Humidity73%
Visibility6.2 mi
Dew point68°
Thu, 1369° / 63°0
69 °
Oak Creek, Thursday, 13 August
Overcast. High 69°, low 63°.
Pressure30.06 inHg
Wind10.9 mph NE
Humidity57%
Visibility—
Dew point53°
Fri, 1469° / 60°0
69 °
Oak Creek, Friday, 14 August
Partly cloudy. High 69°, low 60°.
Pressure30.21 inHg
Wind9.6 mph NE
Humidity62%
Visibility—
Dew point54°
Sat, 1573° / 63°0
73 °
Oak Creek, Saturday, 15 August
Overcast. High 73°, low 63°.
Pressure30.24 inHg
Wind9.6 mph SE
Humidity61%
Visibility—
Dew point57°
Sun, 1670° / 65°0.03
70 °
Oak Creek, Sunday, 16 August
Light rain. High 70°, low 65°.
Pressure30.12 inHg
Wind9 mph S
Humidity79%
Visibility—
Dew point60°
Mon, 1774° / 65°0.01
74 °
Oak Creek, Monday, 17 August
Light rain. High 74°, low 65°.
Pressure30.09 inHg
Wind7.8 mph NE
Humidity73%
Visibility—
Dew point63°
Tue, 1876° / 64°0
76 °
Oak Creek, Tuesday, 18 August
Overcast. High 76°, low 64°.
Pressure30.03 inHg
Wind7.7 mph SE
Humidity57%
Visibility—
Dew point57°
Wed, 1982° / 67°0.31
82 °
Oak Creek, Wednesday, 19 August
Rain. High 82°, low 67°.
Pressure29.91 inHg
Wind14.2 mph S
Humidity70%
Visibility—
Dew point67°
Thu, 2088° / 73°0
88 °
Oak Creek, Thursday, 20 August
Overcast. High 88°, low 73°.
Pressure29.77 inHg
Wind6.3 mph S
Humidity73%
Visibility—
Dew point74°
Fri, 2177° / 68°0
77 °
Oak Creek, Friday, 21 August
Mostly clear. High 77°, low 68°.
Pressure29.97 inHg
Wind13 mph N
Humidity74%
Visibility—
Dew point65°
Sat, 2280° / 68°0.03
80 °
Oak Creek, Saturday, 22 August
Light rain. High 80°, low 68°.
Pressure29.91 inHg
Wind10.5 mph E
Humidity67%
Visibility—
Dew point65°
Sun, 2374° / 68°0
74 °
Oak Creek, Sunday, 23 August
Partly cloudy. High 74°, low 68°.
Pressure29.85 inHg
Wind16.6 mph N
Humidity79%
Visibility—
Dew point66°
Mon, 2471° / 67°0
71 °
Oak Creek, Monday, 24 August
Overcast. High 71°, low 67°.
Pressure30.09 inHg
Wind13.2 mph NE
Humidity83%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 66°0.09
78 °
Oak Creek, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low66°
Average precipitation0.09 in
Chance of precipitation27%
Record high92° (2021)
Record low53° (2025)
Wed, 2678° / 66°0.16
78 °
Oak Creek, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low66°
Average precipitation0.16 in
Chance of precipitation40%
Record high93° (2020)
Record low52° (2025)
Thu, 2778° / 66°0.11
78 °
Oak Creek, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low66°
Average precipitation0.11 in
Chance of precipitation35%
Record high94° (2024)
Record low55° (2025)
Fri, 2878° / 65°0.12
78 °
Oak Creek, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low65°
Average precipitation0.12 in
Chance of precipitation38%
Record high93° (2021)
Record low49° (1986)
Sat, 2977° / 65°0.1
77 °
Oak Creek, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.1 in
Chance of precipitation27%
Record high89° (2022)
Record low51° (1965)
Sun, 3076° / 65°0.07
76 °
Oak Creek, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.07 in
Chance of precipitation33%
Record high89° (2013)
Record low53° (2023)
Mon, 3176° / 64°0.04
76 °
Oak Creek, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.04 in
Chance of precipitation13%
Record high87° (2012)
Record low51° (2009)
Tue, 0176° / 64°0.09
76 °
Oak Creek, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.09 in
Chance of precipitation27%
Record high89° (2022)
Record low51° (2009)
Wed, 0276° / 64°0.05
76 °
Oak Creek, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.05 in
Chance of precipitation28%
Record high89° (2011)
Record low50° (2017)
Thu, 0376° / 64°0.09
76 °
Oak Creek, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.09 in
Chance of precipitation27%
Record high94° (2023)
Record low50° (1974)
Fri, 0475° / 63°0.07
75 °
Oak Creek, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low63°
Average precipitation0.07 in
Chance of precipitation28%
Record high91° (2023)
Record low47° (2025)
Sat, 0575° / 62°0.08
75 °
Oak Creek, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.08 in
Chance of precipitation27%
Record high89° (2023)
Record low48° (2019)
Sun, 0675° / 63°0.08
75 °
Oak Creek, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low63°
Average precipitation0.08 in
Chance of precipitation35%
Record high89° (1990)
Record low48° (2017)
Mon, 0775° / 62°0.1
75 °
Oak Creek, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.1 in
Chance of precipitation32%
Record high88° (1960)
Record low46° (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 Oak Creek, WI 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 Oak Creek, WI 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.