Monthly outlook for East Troy, WI: average high 79.7°, average low 63.4°. That is 0.8° above the climate normal for August. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 20 August (92.8°), the coolest 14 August (55.1°).
79.7°/63.4°
Average high / low
+0.8°
Above normal
4 / 5
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
76.9°
78.5°
-0.8°
19 August – 28 August
84.4°
78.4°
+3.3°
29 August – 7 September
at normal
76.5°
—
August records over 66 years
97.5°16 August 1988All-time high
46.2°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — North Prairie (10 mi).
Mon, 1085° / 69°0.06
85 °
East Troy, Monday, 10 August
Light rain. High 85°, low 69°.
Pressure29.91 inHg
Wind3.2 mph N
Humidity78%
Visibility6.2 mi
Dew point70°
Tue, 1182° / 65°0.91
82 °
East Troy, Tuesday, 11 August
Heavy rain. High 82°, low 65°.
Pressure29.83 inHg
Wind9.6 mph SE
Humidity88%
Visibility6.2 mi
Dew point67°
Wed, 1279° / 67°0
79 °
East Troy, Wednesday, 12 August
Overcast. High 79°, low 67°.
Pressure29.85 inHg
Wind11.1 mph NW
Humidity67%
Visibility6.2 mi
Dew point67°
Thu, 1372° / 59°0
72 °
East Troy, Thursday, 13 August
Overcast. High 72°, low 59°.
Pressure30.03 inHg
Wind7 mph NE
Humidity57%
Visibility—
Dew point54°
Fri, 1472° / 55°0
72 °
East Troy, Friday, 14 August
Partly cloudy. High 72°, low 55°.
Pressure30.18 inHg
Wind10.6 mph E
Humidity60%
Visibility—
Dew point55°
Sat, 1575° / 56°0
75 °
East Troy, Saturday, 15 August
Overcast. High 75°, low 56°.
Pressure30.24 inHg
Wind8.1 mph SE
Humidity55%
Visibility—
Dew point55°
Sun, 1672° / 62°0.04
72 °
East Troy, Sunday, 16 August
Light rain. High 72°, low 62°.
Pressure30.12 inHg
Wind6.3 mph SE
Humidity82%
Visibility—
Dew point60°
Mon, 1777° / 62°0.03
77 °
East Troy, Monday, 17 August
Light rain. High 77°, low 62°.
Pressure30.09 inHg
Wind7.8 mph NE
Humidity66%
Visibility—
Dew point63°
Tue, 1878° / 58°0
78 °
East Troy, Tuesday, 18 August
Overcast. High 78°, low 58°.
Pressure30.03 inHg
Wind6.8 mph S
Humidity60%
Visibility—
Dew point58°
Wed, 1984° / 66°0.36
84 °
East Troy, Wednesday, 19 August
Rain. High 84°, low 66°.
Pressure29.88 inHg
Wind15.5 mph S
Humidity66%
Visibility—
Dew point68°
Thu, 2093° / 74°0
93 °
East Troy, Thursday, 20 August
Overcast. High 93°, low 74°.
Pressure29.77 inHg
Wind6.9 mph NE
Humidity55%
Visibility—
Dew point71°
Fri, 2183° / 66°0
83 °
East Troy, Friday, 21 August
Partly cloudy. High 83°, low 66°.
Pressure29.94 inHg
Wind10.4 mph NE
Humidity58%
Visibility—
Dew point64°
Sat, 2290° / 64°0.01
90 °
East Troy, Saturday, 22 August
Light rain. High 90°, low 64°.
Pressure29.88 inHg
Wind12.2 mph S
Humidity57%
Visibility—
Dew point65°
Sun, 2384° / 65°0
84 °
East Troy, Sunday, 23 August
Partly cloudy. High 84°, low 65°.
Pressure29.83 inHg
Wind13.7 mph NE
Humidity63%
Visibility—
Dew point68°
Mon, 2473° / 66°0.01
73 °
East Troy, Monday, 24 August
Light rain. High 73°, low 66°.
Pressure30.09 inHg
Wind14.8 mph NE
Humidity79%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2579° / 64°0.12
79 °
East Troy, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.12 in
Chance of precipitation27%
Record high90° (2003)
Record low51° (2025)
Wed, 2679° / 64°0.15
79 °
East Troy, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.15 in
Chance of precipitation38%
Record high92° (2024)
Record low49° (2025)
Thu, 2779° / 65°0.11
79 °
East Troy, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low65°
Average precipitation0.11 in
Chance of precipitation33%
Record high93° (1976)
Record low51° (2025)
Fri, 2878° / 64°0.13
78 °
East Troy, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.13 in
Chance of precipitation37%
Record high91° (1984)
Record low46° (1986)
Sat, 2978° / 63°0.11
78 °
East Troy, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.11 in
Chance of precipitation28%
Record high92° (1984)
Record low47° (1965)
Sun, 3077° / 63°0.07
77 °
East Troy, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.07 in
Chance of precipitation32%
Record high91° (2013)
Record low52° (2009)
Mon, 3177° / 62°0.03
77 °
East Troy, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.03 in
Chance of precipitation15%
Record high90° (2012)
Record low50° (2025)
Tue, 0177° / 62°0.08
77 °
East Troy, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.08 in
Chance of precipitation23%
Record high90° (2011)
Record low48° (1967)
Wed, 0277° / 62°0.06
77 °
East Troy, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.06 in
Chance of precipitation23%
Record high92° (2008)
Record low49° (2025)
Thu, 0376° / 62°0.09
76 °
East Troy, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.09 in
Chance of precipitation28%
Record high92° (2023)
Record low47° (1974)
Fri, 0476° / 61°0.07
76 °
East Troy, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.07 in
Chance of precipitation27%
Record high90° (2023)
Record low45° (2025)
Sat, 0575° / 60°0.07
75 °
East Troy, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.07 in
Chance of precipitation23%
Record high89° (2023)
Record low48° (1962)
Sun, 0676° / 61°0.07
76 °
East Troy, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.07 in
Chance of precipitation32%
Record high91° (1990)
Record low46° (2025)
Mon, 0776° / 60°0.11
76 °
East Troy, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation33%
Record high90° (1960)
Record low44° (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 East Troy, 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 East Troy, 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.