Monthly outlook for Buena Vista, WI: average high 77.2°, average low 61.3°. That is 0.6° below the climate normal for August. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 22 August (87.5°), the coolest 20 August (56.6°).
77.2°/61.3°
Average high / low
−0.6°
Below normal
3 / 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
76.3°
78.5°
-1.2°
19 August – 28 August
78.8°
78.4°
+0.2°
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 (9 mi).
Mon, 1084° / 69°0.08
84 °
Buena Vista, Monday, 10 August
Light rain. High 84°, low 69°.
Pressure29.91 inHg
Wind0 mph W
Humidity67%
Visibility6.2 mi
Dew point70°
Tue, 1179° / 63°0.26
79 °
Buena Vista, Tuesday, 11 August
Heavy rain. High 79°, low 63°.
Pressure29.88 inHg
Wind2.9 mph N
Humidity71%
Visibility6.2 mi
Dew point68°
Wed, 1281° / 63°0
81 °
Buena Vista, Wednesday, 12 August
Clear. High 81°, low 63°.
Pressure29.85 inHg
Wind8.1 mph NW
Humidity67%
Visibility6.2 mi
Dew point68°
Thu, 1370° / 58°0
70 °
Buena Vista, Thursday, 13 August
Overcast. High 70°, low 58°.
Pressure30.00 inHg
Wind10.5 mph E
Humidity72%
Visibility—
Dew point57°
Fri, 1472° / 57°0
72 °
Buena Vista, Friday, 14 August
Mostly clear. High 72°, low 57°.
Pressure30.18 inHg
Wind13.1 mph E
Humidity50%
Visibility—
Dew point51°
Sat, 1573° / 60°0.02
73 °
Buena Vista, Saturday, 15 August
Light rain. High 73°, low 60°.
Pressure30.21 inHg
Wind15.7 mph SE
Humidity59%
Visibility—
Dew point55°
Sun, 1674° / 64°0.03
74 °
Buena Vista, Sunday, 16 August
Light rain. High 74°, low 64°.
Pressure30.00 inHg
Wind13.4 mph N
Humidity75%
Visibility—
Dew point64°
Mon, 1777° / 57°0
77 °
Buena Vista, Monday, 17 August
Overcast. High 77°, low 57°.
Pressure30.09 inHg
Wind6.8 mph NW
Humidity56%
Visibility—
Dew point56°
Tue, 1874° / 59°0
74 °
Buena Vista, Tuesday, 18 August
Overcast. High 74°, low 59°.
Pressure29.88 inHg
Wind10.9 mph S
Humidity77%
Visibility—
Dew point59°
Wed, 1975° / 60°0.03
75 °
Buena Vista, Wednesday, 19 August
Light rain. High 75°, low 60°.
Pressure29.83 inHg
Wind14.9 mph NW
Humidity65%
Visibility—
Dew point58°
Thu, 2076° / 57°0.02
76 °
Buena Vista, Thursday, 20 August
Light rain. High 76°, low 57°.
Pressure29.94 inHg
Wind7.3 mph SE
Humidity53%
Visibility—
Dew point54°
Fri, 2183° / 59°0
83 °
Buena Vista, Friday, 21 August
Mostly clear. High 83°, low 59°.
Pressure29.94 inHg
Wind9.1 mph NE
Humidity58%
Visibility—
Dew point63°
Sat, 2288° / 64°0.04
88 °
Buena Vista, Saturday, 22 August
Light rain. High 88°, low 64°.
Pressure29.88 inHg
Wind11.6 mph E
Humidity66%
Visibility—
Dew point65°
Sun, 2378° / 64°0.01
78 °
Buena Vista, Sunday, 23 August
Light rain. High 78°, low 64°.
Pressure29.85 inHg
Wind13.4 mph NE
Humidity72%
Visibility—
Dew point67°
Mon, 2472° / 65°0.01
72 °
Buena Vista, Monday, 24 August
Light rain. High 72°, low 65°.
Pressure30.09 inHg
Wind13.6 mph E
Humidity80%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2579° / 64°0.12
79 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 °
Buena Vista, 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 Buena Vista, 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 Buena Vista, 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.