Monthly outlook for South Bend, IN: average high 82.2°, average low 63.9°. That is 1.4° above the climate normal for August. Precipitation is expected on 5 days (about 4.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 23 August (93.5°), the coolest 14 August (55.1°).
82.2°/63.9°
Average high / low
+1.4°
Above normal
5 / 5
Wet days / normal
4.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.9°
79.8°
-0.5°
19 August – 28 August
87.7°
79.7°
+4.4°
29 August – 7 September
at normal
78.1°
—
August records over 66 years
95.4°1 August 2006All-time high
43.3°29 August 1965All-time low
Mon, 1089° / 70°3.01
89 °
South Bend, Monday, 10 August
Heavy rain. High 89°, low 70°.
Pressure29.91 inHg
Wind9 mph SW
Humidity77%
Visibility6.2 mi
Dew point74°
Tue, 1180° / 66°0.41
80 °
South Bend, Tuesday, 11 August
Heavy rain. High 80°, low 66°.
Pressure29.85 inHg
Wind12.7 mph S
Humidity80%
Visibility6.2 mi
Dew point73°
Wed, 1281° / 65°0
81 °
South Bend, Wednesday, 12 August
Overcast. High 81°, low 65°.
Pressure29.80 inHg
Wind1.6 mph W
Humidity72%
Visibility6.2 mi
Dew point69°
Thu, 1373° / 60°0
73 °
South Bend, Thursday, 13 August
Overcast. High 73°, low 60°.
Pressure30.03 inHg
Wind10.1 mph N
Humidity58%
Visibility—
Dew point55°
Fri, 1473° / 55°0
73 °
South Bend, Friday, 14 August
Partly cloudy. High 73°, low 55°.
Pressure30.18 inHg
Wind7.7 mph N
Humidity56%
Visibility—
Dew point53°
Sat, 1574° / 57°0
74 °
South Bend, Saturday, 15 August
Overcast. High 74°, low 57°.
Pressure30.27 inHg
Wind9.3 mph SE
Humidity61%
Visibility—
Dew point57°
Sun, 1675° / 60°0.06
75 °
South Bend, Sunday, 16 August
Light rain. High 75°, low 60°.
Pressure30.12 inHg
Wind9.2 mph E
Humidity71%
Visibility—
Dew point60°
Mon, 1778° / 62°0
78 °
South Bend, Monday, 17 August
Light rain. High 78°, low 62°.
Pressure30.06 inHg
Wind8.6 mph NW
Humidity65%
Visibility—
Dew point63°
Tue, 1879° / 59°0
79 °
South Bend, Tuesday, 18 August
Partly cloudy. High 79°, low 59°.
Pressure30.06 inHg
Wind5.8 mph SE
Humidity60%
Visibility—
Dew point61°
Wed, 1982° / 65°0.04
82 °
South Bend, Wednesday, 19 August
Light rain. High 82°, low 65°.
Pressure29.97 inHg
Wind10.2 mph S
Humidity82%
Visibility—
Dew point68°
Thu, 2089° / 71°0
89 °
South Bend, Thursday, 20 August
Overcast. High 89°, low 71°.
Pressure29.80 inHg
Wind13.3 mph S
Humidity64%
Visibility—
Dew point72°
Fri, 2188° / 67°0
88 °
South Bend, Friday, 21 August
Clear. High 88°, low 67°.
Pressure29.88 inHg
Wind10.2 mph NW
Humidity62%
Visibility—
Dew point71°
Sat, 2290° / 68°0
90 °
South Bend, Saturday, 22 August
Mostly clear. High 90°, low 68°.
Pressure29.91 inHg
Wind12.8 mph SE
Humidity65%
Visibility—
Dew point72°
Sun, 2394° / 70°0
94 °
South Bend, Sunday, 23 August
Overcast. High 94°, low 70°.
Pressure29.83 inHg
Wind12.8 mph SW
Humidity50%
Visibility—
Dew point69°
Mon, 2484° / 67°0.59
84 °
South Bend, Monday, 24 August
Heavy rain. High 84°, low 67°.
Pressure30.03 inHg
Wind7 mph E
Humidity72%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 63°0.09
80 °
South Bend, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2012)
Record low50° (2017)
Wed, 2681° / 64°0.14
81 °
South Bend, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.14 in
Chance of precipitation37%
Record high92° (2020)
Record low52° (2017)
Thu, 2780° / 64°0.15
80 °
South Bend, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.15 in
Chance of precipitation37%
Record high94° (2024)
Record low50° (1968)
Fri, 2880° / 64°0.13
80 °
South Bend, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation33%
Record high90° (1973)
Record low47° (1986)
Sat, 2979° / 63°0.13
79 °
South Bend, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.13 in
Chance of precipitation33%
Record high91° (1991)
Record low43° (1965)
Sun, 3079° / 62°0.07
79 °
South Bend, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation30%
Record high91° (1970)
Record low47° (1986)
Mon, 3178° / 62°0.09
78 °
South Bend, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.09 in
Chance of precipitation30%
Record high92° (2012)
Record low46° (2009)
Tue, 0178° / 61°0.15
78 °
South Bend, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.15 in
Chance of precipitation32%
Record high91° (2011)
Record low46° (1967)
Wed, 0279° / 62°0.07
79 °
South Bend, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation30%
Record high91° (2008)
Record low48° (1965)
Thu, 0378° / 62°0.07
78 °
South Bend, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation25%
Record high90° (1964)
Record low46° (1974)
Fri, 0477° / 61°0.07
77 °
South Bend, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.07 in
Chance of precipitation30%
Record high89° (1999)
Record low47° (1997)
Sat, 0578° / 61°0.06
78 °
South Bend, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation25%
Record high90° (1999)
Record low46° (1974)
Sun, 0677° / 61°0.09
77 °
South Bend, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation35%
Record high90° (1990)
Record low44° (1962)
Mon, 0777° / 60°0.09
77 °
South Bend, Monday, 7 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.09 in
Chance of precipitation38%
Record high91° (1960)
Record low45° (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 South Bend, IN 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 Bend, IN 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.