Monthly outlook for New Lisbon, WI: average high 79.1°, average low 59.7°. That is 0.6° above the climate normal for August. Precipitation is expected on 5 days (about 2.9 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 18 August (88.8°), the coolest 20 August (51.3°).
79.1°/59.7°
Average high / low
+0.6°
Above normal
5 / 5
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
80.5°
78.3°
+1.2°
18 August – 27 August
76.8°
77.8°
-0.5°
28 August – 6 September
at normal
76.2°
—
August records over 66 years
97.5°1 August 1988All-time high
43°28 August 1986All-time low
Sun, 0976° / 64°0.92
76 °
New Lisbon, Sunday, 9 August
Heavy rain. High 76°, low 64°.
Pressure29.88 inHg
Wind4 mph W
Humidity97%
Visibility1.9 mi
Dew point66°
Mon, 1086° / 68°0
86 °
New Lisbon, Monday, 10 August
Overcast. High 86°, low 68°.
Pressure29.88 inHg
Wind7.2 mph E
Humidity68%
Visibility6.2 mi
Dew point67°
Tue, 1185° / 66°1.41
85 °
New Lisbon, Tuesday, 11 August
Heavy rain. High 85°, low 66°.
Pressure29.77 inHg
Wind3 mph NW
Humidity65%
Visibility6.2 mi
Dew point68°
Wed, 1284° / 65°0
84 °
New Lisbon, Wednesday, 12 August
Partly cloudy. High 84°, low 65°.
Pressure29.88 inHg
Wind11.8 mph N
Humidity39%
Visibility6.2 mi
Dew point53°
Thu, 1376° / 57°0
76 °
New Lisbon, Thursday, 13 August
Overcast. High 76°, low 57°.
Pressure30.03 inHg
Wind5.7 mph SW
Humidity56%
Visibility—
Dew point53°
Fri, 1480° / 57°0
80 °
New Lisbon, Friday, 14 August
Clear. High 80°, low 57°.
Pressure30.12 inHg
Wind5.1 mph NW
Humidity42%
Visibility—
Dew point51°
Sat, 1576° / 56°0.05
76 °
New Lisbon, Saturday, 15 August
Light rain. High 76°, low 56°.
Pressure30.24 inHg
Wind9.3 mph S
Humidity63%
Visibility—
Dew point60°
Sun, 1677° / 54°0
77 °
New Lisbon, Sunday, 16 August
Overcast. High 77°, low 54°.
Pressure30.12 inHg
Wind7.7 mph SW
Humidity50%
Visibility—
Dew point53°
Mon, 1784° / 62°0
84 °
New Lisbon, Monday, 17 August
Partly cloudy. High 84°, low 62°.
Pressure30.00 inHg
Wind10.1 mph W
Humidity52%
Visibility—
Dew point61°
Tue, 1889° / 67°0.12
89 °
New Lisbon, Tuesday, 18 August
Light rain. High 89°, low 67°.
Pressure29.85 inHg
Wind17.5 mph W
Humidity54%
Visibility—
Dew point66°
Wed, 1976° / 59°0.01
76 °
New Lisbon, Wednesday, 19 August
Light rain. High 76°, low 59°.
Pressure29.97 inHg
Wind17.2 mph N
Humidity53%
Visibility—
Dew point51°
Thu, 2075° / 51°0
75 °
New Lisbon, Thursday, 20 August
Overcast. High 75°, low 51°.
Pressure30.09 inHg
Wind8.6 mph W
Humidity36%
Visibility—
Dew point43°
Fri, 2175° / 52°0
75 °
New Lisbon, Friday, 21 August
Clear. High 75°, low 52°.
Pressure30.09 inHg
Wind7.4 mph SE
Humidity37%
Visibility—
Dew point44°
Sat, 2266° / 54°0.41
66 °
New Lisbon, Saturday, 22 August
Rain. High 66°, low 54°.
Pressure29.85 inHg
Wind11 mph SE
Humidity97%
Visibility—
Dew point57°
Sun, 2380° / 61°0.01
80 °
New Lisbon, Sunday, 23 August
Light rain. High 80°, low 61°.
Pressure29.88 inHg
Wind14.6 mph W
Humidity46%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 62°0.12
78 °
New Lisbon, Monday, 24 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.12 in
Chance of precipitation28%
Record high94° (2023)
Record low49° (1977)
Tue, 2578° / 63°0.1
78 °
New Lisbon, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.1 in
Chance of precipitation30%
Record high90° (2024)
Record low50° (2025)
Wed, 2678° / 64°0.12
78 °
New Lisbon, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.12 in
Chance of precipitation40%
Record high93° (2024)
Record low48° (1964)
Thu, 2778° / 63°0.17
78 °
New Lisbon, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.17 in
Chance of precipitation35%
Record high91° (1973)
Record low47° (1968)
Fri, 2878° / 62°0.17
78 °
New Lisbon, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.17 in
Chance of precipitation37%
Record high92° (1984)
Record low43° (1986)
Sat, 2977° / 62°0.12
77 °
New Lisbon, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.12 in
Chance of precipitation33%
Record high90° (1969)
Record low44° (1965)
Sun, 3076° / 61°0.11
76 °
New Lisbon, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.11 in
Chance of precipitation27%
Record high92° (2012)
Record low49° (1974)
Mon, 3176° / 60°0.05
76 °
New Lisbon, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.05 in
Chance of precipitation25%
Record high91° (2000)
Record low47° (1967)
Tue, 0177° / 60°0.11
77 °
New Lisbon, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.11 in
Chance of precipitation28%
Record high92° (2011)
Record low46° (1974)
Wed, 0276° / 60°0.09
76 °
New Lisbon, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation32%
Record high90° (2023)
Record low44° (1974)
Thu, 0375° / 61°0.13
75 °
New Lisbon, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.13 in
Chance of precipitation35%
Record high93° (2023)
Record low43° (1974)
Fri, 0476° / 59°0.1
76 °
New Lisbon, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.1 in
Chance of precipitation28%
Record high92° (2023)
Record low43° (2025)
Sat, 0575° / 59°0.07
75 °
New Lisbon, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.07 in
Chance of precipitation28%
Record high90° (2023)
Record low44° (1974)
Sun, 0675° / 59°0.07
75 °
New Lisbon, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.07 in
Chance of precipitation25%
Record high89° (1960)
Record low42° (1962)
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 New Lisbon, 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 New Lisbon, 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.