Monthly outlook for Milwaukee, WI: average high 75.8°, average low 62.5°. That is 1.1° below the climate normal for August. Precipitation is expected on 3 days (about 2.2 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 10 August (84.8°), the coolest 20 August (56.8°).
75.8°/62.5°
Average high / low
−1.1°
Below normal
3 / 6
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
77.5°
78°
-0.3°
18 August – 27 August
72.9°
77.4°
-2.5°
28 August – 6 September
at normal
76.1°
—
August records over 66 years
99.3°23 August 2023All-time high
49.5°28 August 1986All-time low
Sun, 0976° / 64°0.79
76 °
Milwaukee, Sunday, 9 August
Heavy rain. High 76°, low 64°.
Pressure29.97 inHg
Wind8.8 mph W
Humidity93%
Visibility6.2 mi
Dew point69°
Mon, 1085° / 69°0.04
85 °
Milwaukee, Monday, 10 August
Light rain. High 85°, low 69°.
Pressure29.94 inHg
Wind4 mph E
Humidity71%
Visibility6.2 mi
Dew point68°
Tue, 1178° / 66°0.94
78 °
Milwaukee, Tuesday, 11 August
Heavy rain. High 78°, low 66°.
Pressure29.80 inHg
Wind2.4 mph NW
Humidity81%
Visibility6.2 mi
Dew point68°
Wed, 1280° / 65°0
80 °
Milwaukee, Wednesday, 12 August
Overcast. High 80°, low 65°.
Pressure29.85 inHg
Wind4.9 mph N
Humidity67%
Visibility6.2 mi
Dew point66°
Thu, 1372° / 62°0
72 °
Milwaukee, Thursday, 13 August
Overcast. High 72°, low 62°.
Pressure30.03 inHg
Wind10.9 mph NE
Humidity57%
Visibility—
Dew point52°
Fri, 1475° / 58°0
75 °
Milwaukee, Friday, 14 August
Clear. High 75°, low 58°.
Pressure30.12 inHg
Wind6.8 mph SW
Humidity47%
Visibility—
Dew point51°
Sat, 1574° / 62°0
74 °
Milwaukee, Saturday, 15 August
Overcast. High 74°, low 62°.
Pressure30.27 inHg
Wind8.6 mph E
Humidity55%
Visibility—
Dew point56°
Sun, 1673° / 59°0
73 °
Milwaukee, Sunday, 16 August
Overcast. High 73°, low 59°.
Pressure30.15 inHg
Wind7.4 mph SE
Humidity61%
Visibility—
Dew point57°
Mon, 1780° / 63°0
80 °
Milwaukee, Monday, 17 August
Mostly clear. High 80°, low 63°.
Pressure30.03 inHg
Wind6.1 mph SW
Humidity57%
Visibility—
Dew point60°
Tue, 1884° / 67°0.02
84 °
Milwaukee, Tuesday, 18 August
Light rain. High 84°, low 67°.
Pressure29.94 inHg
Wind13.8 mph SW
Humidity60%
Visibility—
Dew point65°
Wed, 1973° / 63°0
73 °
Milwaukee, Wednesday, 19 August
Overcast. High 73°, low 63°.
Pressure29.88 inHg
Wind17.9 mph NW
Humidity57%
Visibility—
Dew point56°
Thu, 2070° / 57°0
70 °
Milwaukee, Thursday, 20 August
Overcast. High 70°, low 57°.
Pressure30.06 inHg
Wind11.1 mph N
Humidity47%
Visibility—
Dew point47°
Fri, 2170° / 57°0
70 °
Milwaukee, Friday, 21 August
Clear. High 70°, low 57°.
Pressure30.09 inHg
Wind8.3 mph E
Humidity53%
Visibility—
Dew point51°
Sat, 2264° / 59°0.33
64 °
Milwaukee, Saturday, 22 August
Rain. High 64°, low 59°.
Pressure29.91 inHg
Wind10.9 mph SE
Humidity93%
Visibility—
Dew point58°
Sun, 2377° / 63°0.01
77 °
Milwaukee, Sunday, 23 August
Light rain. High 77°, low 63°.
Pressure29.85 inHg
Wind15 mph W
Humidity54%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2477° / 65°0.11
77 °
Milwaukee, Monday, 24 August
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.11 in
Chance of precipitation37%
Record high95° (2020)
Record low56° (1966)
Tue, 2578° / 66°0.09
78 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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 °
Milwaukee, 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)
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 Milwaukee, 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 Milwaukee, 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.