Monthly outlook for Glen Oak, WI: average high 80.9°, average low 62.4°. That is 1.4° above the climate normal for August. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 20 August (100°), the coolest 15 August (52°).
80.9°/62.4°
Average high / low
+1.4°
Above normal
6 / 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
77.9°
78.4°
-0.3°
19 August – 28 August
85.8°
78.3°
+4.1°
29 August – 7 September
at normal
76.4°
—
August records over 66 years
97.3°23 August 2023All-time high
44.2°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Pardeeville (15 mi).
Mon, 1086° / 69°0
86 °
Glen Oak, Monday, 10 August
Overcast. High 86°, low 69°.
Pressure29.88 inHg
Wind3.1 mph E
Humidity70%
Visibility6.2 mi
Dew point69°
Tue, 1180° / 66°1.01
80 °
Glen Oak, Tuesday, 11 August
Heavy rain. High 80°, low 66°.
Pressure29.83 inHg
Wind6 mph S
Humidity72%
Visibility6.2 mi
Dew point66°
Wed, 1283° / 64°0.04
83 °
Glen Oak, Wednesday, 12 August
Light rain. High 83°, low 64°.
Pressure29.85 inHg
Wind7.9 mph NW
Humidity47%
Visibility6.2 mi
Dew point58°
Thu, 1374° / 58°0
74 °
Glen Oak, Thursday, 13 August
Overcast. High 74°, low 58°.
Pressure30.03 inHg
Wind7.2 mph SW
Humidity45%
Visibility—
Dew point47°
Fri, 1475° / 52°0
75 °
Glen Oak, Friday, 14 August
Partly cloudy. High 75°, low 52°.
Pressure30.18 inHg
Wind8.7 mph E
Humidity55%
Visibility—
Dew point53°
Sat, 1573° / 52°0
73 °
Glen Oak, Saturday, 15 August
Overcast. High 73°, low 52°.
Pressure30.24 inHg
Wind8.4 mph E
Humidity49%
Visibility—
Dew point50°
Sun, 1674° / 63°0.04
74 °
Glen Oak, Sunday, 16 August
Light rain. High 74°, low 63°.
Pressure30.09 inHg
Wind5.9 mph NW
Humidity91%
Visibility—
Dew point65°
Mon, 1779° / 61°0
79 °
Glen Oak, Monday, 17 August
Partly cloudy. High 79°, low 61°.
Pressure30.09 inHg
Wind6.2 mph NE
Humidity48%
Visibility—
Dew point55°
Tue, 1878° / 59°0
78 °
Glen Oak, Tuesday, 18 August
Overcast. High 78°, low 59°.
Pressure30.00 inHg
Wind9.4 mph S
Humidity62%
Visibility—
Dew point59°
Wed, 1987° / 67°0.19
87 °
Glen Oak, Wednesday, 19 August
Light rain. High 87°, low 67°.
Pressure29.85 inHg
Wind11.9 mph SE
Humidity64%
Visibility—
Dew point68°
Thu, 20100° / 74°0
100 °
Glen Oak, Thursday, 20 August
Partly cloudy. High 100°, low 74°.
Pressure29.77 inHg
Wind8.8 mph NW
Humidity46%
Visibility—
Dew point68°
Fri, 2187° / 66°0
87 °
Glen Oak, Friday, 21 August
Partly cloudy. High 87°, low 66°.
Pressure29.97 inHg
Wind6.4 mph N
Humidity42%
Visibility—
Dew point56°
Sat, 2286° / 62°0.03
86 °
Glen Oak, Saturday, 22 August
Light rain. High 86°, low 62°.
Pressure29.88 inHg
Wind10.2 mph SE
Humidity69%
Visibility—
Dew point64°
Sun, 2380° / 63°0.1
80 °
Glen Oak, Sunday, 23 August
Light rain. High 80°, low 63°.
Pressure29.88 inHg
Wind13.8 mph NE
Humidity59%
Visibility—
Dew point62°
Mon, 2475° / 61°0
75 °
Glen Oak, Monday, 24 August
Overcast. High 75°, low 61°.
Pressure30.09 inHg
Wind8.9 mph NE
Humidity73%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2579° / 63°0.08
79 °
Glen Oak, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.08 in
Chance of precipitation28%
Record high89° (2013)
Record low48° (2017)
Wed, 2679° / 64°0.13
79 °
Glen Oak, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.13 in
Chance of precipitation37%
Record high93° (2024)
Record low49° (2025)
Thu, 2779° / 64°0.17
79 °
Glen Oak, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.17 in
Chance of precipitation38%
Record high92° (1976)
Record low48° (1968)
Fri, 2878° / 62°0.16
78 °
Glen Oak, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.16 in
Chance of precipitation35%
Record high92° (1984)
Record low46° (1986)
Sat, 2978° / 62°0.11
78 °
Glen Oak, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.11 in
Chance of precipitation33%
Record high91° (1984)
Record low44° (1965)
Sun, 3077° / 62°0.07
77 °
Glen Oak, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.07 in
Chance of precipitation32%
Record high90° (2012)
Record low48° (1974)
Mon, 3177° / 60°0.03
77 °
Glen Oak, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.03 in
Chance of precipitation15%
Record high90° (2000)
Record low48° (2009)
Tue, 0177° / 60°0.09
77 °
Glen Oak, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.09 in
Chance of precipitation30%
Record high90° (2011)
Record low46° (1967)
Wed, 0277° / 61°0.09
77 °
Glen Oak, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2008)
Record low46° (1974)
Thu, 0376° / 61°0.09
76 °
Glen Oak, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.09 in
Chance of precipitation30%
Record high94° (2023)
Record low44° (1974)
Fri, 0476° / 60°0.09
76 °
Glen Oak, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation32%
Record high93° (2023)
Record low43° (2025)
Sat, 0575° / 59°0.07
75 °
Glen Oak, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.07 in
Chance of precipitation20%
Record high90° (2023)
Record low47° (1962)
Sun, 0676° / 60°0.06
76 °
Glen Oak, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.06 in
Chance of precipitation28%
Record high89° (2015)
Record low43° (1962)
Mon, 0775° / 59°0.1
75 °
Glen Oak, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.1 in
Chance of precipitation33%
Record high89° (1960)
Record low43° (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 Glen Oak, 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 Glen Oak, 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.