Monthly outlook for Manitowoc, WI: average high 76.8°, average low 61°. That is 0.3° above the climate normal for August. Precipitation is expected on 7 days (about 1.4 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 18 August (84.1°), the coolest 21 August (53.3°).
76.8°/61°
Average high / low
+0.3°
Above normal
7 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
77.4°
76.7°
+0.4°
18 August – 27 August
75.9°
75.8°
+0°
28 August – 6 September
at normal
74.4°
—
August records over 66 years
96.4°16 August 1988All-time high
48.6°28 August 1986All-time low
Sun, 0976° / 65°0.43
76 °
Manitowoc, Sunday, 9 August
Rain. High 76°, low 65°.
Pressure29.97 inHg
Wind9.1 mph SW
Humidity93%
Visibility2.9 mi
Dew point66°
Mon, 1083° / 68°0
83 °
Manitowoc, Monday, 10 August
Clear. High 83°, low 68°.
Pressure29.91 inHg
Wind6.7 mph E
Humidity67%
Visibility6.2 mi
Dew point66°
Tue, 1176° / 65°0.39
76 °
Manitowoc, Tuesday, 11 August
Heavy rain. High 76°, low 65°.
Pressure29.83 inHg
Wind7.7 mph SE
Humidity87%
Visibility6.2 mi
Dew point67°
Wed, 1279° / 62°0.03
79 °
Manitowoc, Wednesday, 12 August
Light rain. High 79°, low 62°.
Pressure29.83 inHg
Wind11.8 mph NW
Humidity54%
Visibility6.2 mi
Dew point60°
Thu, 1374° / 55°0
74 °
Manitowoc, Thursday, 13 August
Overcast. High 74°, low 55°.
Pressure30.03 inHg
Wind11 mph SW
Humidity39%
Visibility—
Dew point44°
Fri, 1478° / 57°0
78 °
Manitowoc, Friday, 14 August
Clear. High 78°, low 57°.
Pressure30.09 inHg
Wind13.5 mph E
Humidity35%
Visibility—
Dew point45°
Sat, 1572° / 58°0
72 °
Manitowoc, Saturday, 15 August
Overcast. High 72°, low 58°.
Pressure30.30 inHg
Wind10.2 mph SE
Humidity57%
Visibility—
Dew point54°
Sun, 1675° / 60°0
75 °
Manitowoc, Sunday, 16 August
Overcast. High 75°, low 60°.
Pressure30.12 inHg
Wind10.2 mph S
Humidity54%
Visibility—
Dew point55°
Mon, 1779° / 62°0.01
79 °
Manitowoc, Monday, 17 August
Light rain. High 79°, low 62°.
Pressure30.00 inHg
Wind9.9 mph SW
Humidity61%
Visibility—
Dew point61°
Tue, 1884° / 67°0.1
84 °
Manitowoc, Tuesday, 18 August
Light rain. High 84°, low 67°.
Pressure29.88 inHg
Wind21.8 mph SW
Humidity62%
Visibility—
Dew point65°
Wed, 1973° / 62°0.07
73 °
Manitowoc, Wednesday, 19 August
Light rain. High 73°, low 62°.
Pressure29.85 inHg
Wind22.8 mph NW
Humidity48%
Visibility—
Dew point51°
Thu, 2074° / 55°0
74 °
Manitowoc, Thursday, 20 August
Overcast. High 74°, low 55°.
Pressure30.06 inHg
Wind16.2 mph N
Humidity38%
Visibility—
Dew point43°
Fri, 2172° / 53°0
72 °
Manitowoc, Friday, 21 August
Clear. High 72°, low 53°.
Pressure30.09 inHg
Wind11.3 mph E
Humidity46%
Visibility—
Dew point48°
Sat, 2270° / 59°0.1
70 °
Manitowoc, Saturday, 22 August
Light rain. High 70°, low 59°.
Pressure29.91 inHg
Wind16.6 mph S
Humidity88%
Visibility—
Dew point58°
Sun, 2382° / 61°0.06
82 °
Manitowoc, Sunday, 23 August
Light rain. High 82°, low 61°.
Pressure29.80 inHg
Wind18.7 mph W
Humidity46%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2476° / 65°0.12
76 °
Manitowoc, Monday, 24 August
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.12 in
Chance of precipitation28%
Record high90° (2020)
Record low55° (1984)
Tue, 2576° / 65°0.11
76 °
Manitowoc, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.11 in
Chance of precipitation23%
Record high88° (2013)
Record low52° (2025)
Wed, 2676° / 65°0.18
76 °
Manitowoc, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.18 in
Chance of precipitation40%
Record high89° (2013)
Record low52° (2025)
Thu, 2776° / 66°0.19
76 °
Manitowoc, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.19 in
Chance of precipitation37%
Record high91° (1973)
Record low54° (2025)
Fri, 2876° / 65°0.13
76 °
Manitowoc, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.13 in
Chance of precipitation37%
Record high89° (1973)
Record low49° (1986)
Sat, 2976° / 64°0.13
76 °
Manitowoc, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.13 in
Chance of precipitation35%
Record high88° (1973)
Record low51° (1965)
Sun, 3075° / 64°0.1
75 °
Manitowoc, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low64°
Average precipitation0.1 in
Chance of precipitation35%
Record high89° (1969)
Record low50° (2025)
Mon, 3174° / 63°0.03
74 °
Manitowoc, Monday, 31 August
Climate normal for this date — 60-year average.
Average high74°
Average low63°
Average precipitation0.03 in
Chance of precipitation17%
Record high87° (1960)
Record low52° (2025)
Tue, 0174° / 63°0.09
74 °
Manitowoc, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high74°
Average low63°
Average precipitation0.09 in
Chance of precipitation27%
Record high86° (1990)
Record low53° (1994)
Wed, 0274° / 63°0.09
74 °
Manitowoc, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high74°
Average low63°
Average precipitation0.09 in
Chance of precipitation20%
Record high88° (2011)
Record low53° (1974)
Thu, 0374° / 63°0.09
74 °
Manitowoc, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high74°
Average low63°
Average precipitation0.09 in
Chance of precipitation23%
Record high92° (2023)
Record low49° (1974)
Fri, 0474° / 62°0.05
74 °
Manitowoc, Friday, 4 September
Climate normal for this date — 60-year average.
Average high74°
Average low62°
Average precipitation0.05 in
Chance of precipitation25%
Record high87° (1990)
Record low46° (2025)
Sat, 0573° / 62°0.12
73 °
Manitowoc, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high73°
Average low62°
Average precipitation0.12 in
Chance of precipitation27%
Record high85° (2007)
Record low50° (1962)
Sun, 0673° / 62°0.07
73 °
Manitowoc, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high73°
Average low62°
Average precipitation0.07 in
Chance of precipitation30%
Record high86° (1985)
Record low48° (2017)
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 Manitowoc, 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 Manitowoc, 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.