Monthly outlook for St. Francis, WI: average high 75.6°, average low 66.6°. That is 1.1° below the climate normal for August. Precipitation is expected on 4 days (about 2.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 20 August (85.9°), the coolest 14 August (60.9°).
75.6°/66.6°
Average high / low
−1.1°
Below normal
4 / 5
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
74.5°
77.7°
-1.8°
19 August – 28 August
77.5°
77.5°
-0°
29 August – 7 September
at normal
75.8°
—
August records over 66 years
99.3°23 August 2023All-time high
49.5°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Milwaukee (8 mi).
Mon, 1085° / 71°0.1
85 °
St. Francis, Monday, 10 August
Rain. High 85°, low 71°.
Pressure29.91 inHg
Wind5.3 mph NE
Humidity82%
Visibility6.2 mi
Dew point69°
Tue, 1177° / 67°1.39
77 °
St. Francis, Tuesday, 11 August
Heavy rain. High 77°, low 67°.
Pressure29.83 inHg
Wind7.9 mph SE
Humidity90%
Visibility6.2 mi
Dew point67°
Wed, 1277° / 68°0
77 °
St. Francis, Wednesday, 12 August
Overcast. High 77°, low 68°.
Pressure29.83 inHg
Wind7.9 mph N
Humidity75%
Visibility6.2 mi
Dew point67°
Thu, 1369° / 64°0
69 °
St. Francis, Thursday, 13 August
Overcast. High 69°, low 64°.
Pressure30.06 inHg
Wind12.1 mph NE
Humidity57%
Visibility—
Dew point53°
Fri, 1468° / 61°0
68 °
St. Francis, Friday, 14 August
Mostly clear. High 68°, low 61°.
Pressure30.21 inHg
Wind10 mph E
Humidity65%
Visibility—
Dew point55°
Sat, 1572° / 63°0
72 °
St. Francis, Saturday, 15 August
Overcast. High 72°, low 63°.
Pressure30.24 inHg
Wind10.9 mph E
Humidity63%
Visibility—
Dew point58°
Sun, 1670° / 65°0.02
70 °
St. Francis, Sunday, 16 August
Light rain. High 70°, low 65°.
Pressure30.12 inHg
Wind10 mph S
Humidity78%
Visibility—
Dew point60°
Mon, 1773° / 65°0
73 °
St. Francis, Monday, 17 August
Light rain. High 73°, low 65°.
Pressure30.09 inHg
Wind7.7 mph NE
Humidity74%
Visibility—
Dew point63°
Tue, 1875° / 65°0
75 °
St. Francis, Tuesday, 18 August
Overcast. High 75°, low 65°.
Pressure30.03 inHg
Wind8.3 mph SE
Humidity59%
Visibility—
Dew point58°
Wed, 1980° / 67°0.27
80 °
St. Francis, Wednesday, 19 August
Rain. High 80°, low 67°.
Pressure29.91 inHg
Wind14.9 mph S
Humidity72%
Visibility—
Dew point67°
Thu, 2086° / 73°0
86 °
St. Francis, Thursday, 20 August
Overcast. High 86°, low 73°.
Pressure29.77 inHg
Wind6.6 mph NW
Humidity74%
Visibility—
Dew point74°
Fri, 2176° / 69°0
76 °
St. Francis, Friday, 21 August
Mostly clear. High 76°, low 69°.
Pressure29.97 inHg
Wind14.1 mph N
Humidity77%
Visibility—
Dew point66°
Sat, 2279° / 69°0.03
79 °
St. Francis, Saturday, 22 August
Light rain. High 79°, low 69°.
Pressure29.91 inHg
Wind11.2 mph E
Humidity74%
Visibility—
Dew point66°
Sun, 2373° / 68°0
73 °
St. Francis, Sunday, 23 August
Partly cloudy. High 73°, low 68°.
Pressure29.85 inHg
Wind17.9 mph N
Humidity81%
Visibility—
Dew point66°
Mon, 2470° / 67°0
70 °
St. Francis, Monday, 24 August
Overcast. High 70°, low 67°.
Pressure30.09 inHg
Wind14 mph NE
Humidity85%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 66°0.09
78 °
St. Francis, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low66°
Average precipitation0.09 in
Chance of precipitation27%
Record high92° (2021)
Record low53° (2025)
Wed, 2678° / 66°0.16
78 °
St. Francis, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low66°
Average precipitation0.16 in
Chance of precipitation40%
Record high93° (2020)
Record low52° (2025)
Thu, 2778° / 66°0.11
78 °
St. Francis, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low66°
Average precipitation0.11 in
Chance of precipitation35%
Record high94° (2024)
Record low55° (2025)
Fri, 2878° / 65°0.12
78 °
St. Francis, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low65°
Average precipitation0.12 in
Chance of precipitation38%
Record high93° (2021)
Record low49° (1986)
Sat, 2977° / 65°0.1
77 °
St. Francis, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.1 in
Chance of precipitation27%
Record high89° (2022)
Record low51° (1965)
Sun, 3076° / 65°0.07
76 °
St. Francis, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.07 in
Chance of precipitation33%
Record high89° (2013)
Record low53° (2023)
Mon, 3176° / 64°0.04
76 °
St. Francis, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.04 in
Chance of precipitation13%
Record high87° (2012)
Record low51° (2009)
Tue, 0176° / 64°0.09
76 °
St. Francis, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.09 in
Chance of precipitation27%
Record high89° (2022)
Record low51° (2009)
Wed, 0276° / 64°0.05
76 °
St. Francis, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.05 in
Chance of precipitation28%
Record high89° (2011)
Record low50° (2017)
Thu, 0376° / 64°0.09
76 °
St. Francis, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.09 in
Chance of precipitation27%
Record high94° (2023)
Record low50° (1974)
Fri, 0475° / 63°0.07
75 °
St. Francis, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low63°
Average precipitation0.07 in
Chance of precipitation28%
Record high91° (2023)
Record low47° (2025)
Sat, 0575° / 62°0.08
75 °
St. Francis, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.08 in
Chance of precipitation27%
Record high89° (2023)
Record low48° (2019)
Sun, 0675° / 63°0.08
75 °
St. Francis, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low63°
Average precipitation0.08 in
Chance of precipitation35%
Record high89° (1990)
Record low48° (2017)
Mon, 0775° / 62°0.1
75 °
St. Francis, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.1 in
Chance of precipitation32%
Record high88° (1960)
Record low46° (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 St. Francis, 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 St. Francis, 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.