Monthly outlook for South Beaver Dam, WI: average high 76.6°, average low 59.8°. That is 0.6° below the climate normal for August. Precipitation is expected on 7 days (about 1.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 10 August (84°), the coolest 23 August (52.3°).
76.6°/59.8°
Average high / low
−0.6°
Below normal
7 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
76.1°
77.9°
-1°
19 August – 28 August
77.4°
77.8°
-0.2°
29 August – 7 September
at normal
75.9°
—
August records over 66 years
96.3°23 August 2023All-time high
44.1°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Fox Lake (8 mi).
Mon, 1084° / 70°0.02
84 °
South Beaver Dam, Monday, 10 August
Light rain. High 84°, low 70°.
Pressure29.91 inHg
Wind2.3 mph NW
Humidity75%
Visibility6.2 mi
Dew point70°
Tue, 1177° / 63°0.13
77 °
South Beaver Dam, Tuesday, 11 August
Rain. High 77°, low 63°.
Pressure29.88 inHg
Wind0.9 mph W
Humidity95%
Visibility6.2 mi
Dew point69°
Wed, 1283° / 64°0
83 °
South Beaver Dam, Wednesday, 12 August
Clear. High 83°, low 64°.
Pressure29.85 inHg
Wind7.3 mph NW
Humidity66%
Visibility6.2 mi
Dew point67°
Thu, 1369° / 58°0
69 °
South Beaver Dam, Thursday, 13 August
Overcast. High 69°, low 58°.
Pressure30.00 inHg
Wind9.6 mph E
Humidity75%
Visibility—
Dew point59°
Fri, 1474° / 55°0
74 °
South Beaver Dam, Friday, 14 August
Partly cloudy. High 74°, low 55°.
Pressure30.18 inHg
Wind11.3 mph E
Humidity56%
Visibility—
Dew point54°
Sat, 1572° / 58°0.05
72 °
South Beaver Dam, Saturday, 15 August
Light rain. High 72°, low 58°.
Pressure30.21 inHg
Wind14.9 mph SE
Humidity72%
Visibility—
Dew point60°
Sun, 1670° / 63°0.05
70 °
South Beaver Dam, Sunday, 16 August
Light rain. High 70°, low 63°.
Pressure30.03 inHg
Wind15.1 mph NW
Humidity80%
Visibility—
Dew point62°
Mon, 1776° / 57°0
76 °
South Beaver Dam, Monday, 17 August
Overcast. High 76°, low 57°.
Pressure30.09 inHg
Wind7 mph NW
Humidity58%
Visibility—
Dew point56°
Tue, 1874° / 59°0
74 °
South Beaver Dam, Tuesday, 18 August
Overcast. High 74°, low 59°.
Pressure29.88 inHg
Wind12.1 mph SW
Humidity76%
Visibility—
Dew point59°
Wed, 1976° / 61°0.07
76 °
South Beaver Dam, Wednesday, 19 August
Light rain. High 76°, low 61°.
Pressure29.85 inHg
Wind14.7 mph N
Humidity75%
Visibility—
Dew point59°
Thu, 2075° / 56°0.02
75 °
South Beaver Dam, Thursday, 20 August
Light rain. High 75°, low 56°.
Pressure29.94 inHg
Wind5.6 mph E
Humidity59%
Visibility—
Dew point56°
Fri, 2180° / 60°0.1
80 °
South Beaver Dam, Friday, 21 August
Light rain. High 80°, low 60°.
Pressure29.77 inHg
Wind13 mph SW
Humidity76%
Visibility—
Dew point60°
Sat, 2278° / 60°0.17
78 °
South Beaver Dam, Saturday, 22 August
Light rain. High 78°, low 60°.
Pressure29.77 inHg
Wind16.1 mph NW
Humidity48%
Visibility—
Dew point55°
Sun, 2375° / 52°0
75 °
South Beaver Dam, Sunday, 23 August
Clear. High 75°, low 52°.
Pressure30.12 inHg
Wind8.9 mph W
Humidity53%
Visibility—
Dew point53°
Mon, 2480° / 58°0
80 °
South Beaver Dam, Monday, 24 August
Mostly clear. High 80°, low 58°.
Pressure30.15 inHg
Wind8.5 mph SW
Humidity53%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 62°0.1
78 °
South Beaver Dam, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.1 in
Chance of precipitation28%
Record high89° (2013)
Record low50° (1977)
Wed, 2678° / 63°0.13
78 °
South Beaver Dam, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.13 in
Chance of precipitation38%
Record high92° (2020)
Record low48° (1964)
Thu, 2778° / 63°0.18
78 °
South Beaver Dam, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.18 in
Chance of precipitation38%
Record high93° (1976)
Record low49° (1968)
Fri, 2878° / 62°0.18
78 °
South Beaver Dam, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.18 in
Chance of precipitation37%
Record high92° (1984)
Record low44° (1986)
Sat, 2977° / 61°0.11
77 °
South Beaver Dam, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.11 in
Chance of precipitation33%
Record high90° (1984)
Record low44° (1965)
Sun, 3076° / 61°0.09
76 °
South Beaver Dam, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.09 in
Chance of precipitation35%
Record high89° (1969)
Record low48° (1974)
Mon, 3176° / 60°0.03
76 °
South Beaver Dam, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.03 in
Chance of precipitation20%
Record high89° (2000)
Record low47° (2009)
Tue, 0176° / 60°0.07
76 °
South Beaver Dam, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.07 in
Chance of precipitation30%
Record high90° (2011)
Record low46° (1967)
Wed, 0276° / 60°0.09
76 °
South Beaver Dam, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2008)
Record low45° (1974)
Thu, 0376° / 60°0.09
76 °
South Beaver Dam, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation27%
Record high93° (2023)
Record low43° (1974)
Fri, 0475° / 59°0.09
75 °
South Beaver Dam, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.09 in
Chance of precipitation30%
Record high92° (2023)
Record low45° (2025)
Sat, 0575° / 59°0.07
75 °
South Beaver Dam, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.07 in
Chance of precipitation25%
Record high88° (2023)
Record low46° (1962)
Sun, 0675° / 59°0.07
75 °
South Beaver Dam, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.07 in
Chance of precipitation32%
Record high89° (2015)
Record low44° (1962)
Mon, 0775° / 59°0.11
75 °
South Beaver Dam, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.11 in
Chance of precipitation37%
Record high89° (1960)
Record low44° (1968)
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 South Beaver Dam, 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 South Beaver Dam, 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.