Monthly outlook for South Salem, IN: average high 81.7°, average low 65.4°. That is 1° above the climate normal for August. Precipitation is expected on 7 days (about 3.5 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 10 August (90.6°), the coolest 15 August (56.9°).
81.7°/65.4°
Average high / low
+1°
Above normal
7 / 6
Wet days / normal
3.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.9°
80°
-0.6°
19 August – 28 August
86.2°
80.1°
+3.4°
29 August – 7 September
at normal
78.5°
—
August records over 66 years
95.9°19 August 1983All-time high
43.7°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Lynn (9 mi).
Mon, 1091° / 70°0.56
91 °
South Salem, Monday, 10 August
Heavy rain. High 91°, low 70°.
Pressure29.97 inHg
Wind16.8 mph SW
Humidity79%
Visibility6.2 mi
Dew point74°
Tue, 1186° / 69°1.11
86 °
South Salem, Tuesday, 11 August
Heavy rain. High 86°, low 69°.
Pressure29.91 inHg
Wind10.7 mph SW
Humidity80%
Visibility6.2 mi
Dew point75°
Wed, 1283° / 65°1.39
83 °
South Salem, Wednesday, 12 August
Heavy rain. High 83°, low 65°.
Pressure29.80 inHg
Wind5.1 mph NE
Humidity80%
Visibility6.2 mi
Dew point73°
Thu, 1374° / 61°0.01
74 °
South Salem, Thursday, 13 August
Light rain. High 74°, low 61°.
Pressure29.97 inHg
Wind8.7 mph N
Humidity70%
Visibility—
Dew point62°
Fri, 1471° / 59°0.14
71 °
South Salem, Friday, 14 August
Light rain. High 71°, low 59°.
Pressure30.15 inHg
Wind8 mph NE
Humidity70%
Visibility—
Dew point57°
Sat, 1570° / 57°0
70 °
South Salem, Saturday, 15 August
Overcast. High 70°, low 57°.
Pressure30.27 inHg
Wind7.5 mph E
Humidity83%
Visibility—
Dew point58°
Sun, 1673° / 58°0.02
73 °
South Salem, Sunday, 16 August
Light rain. High 73°, low 58°.
Pressure30.12 inHg
Wind9.1 mph SE
Humidity74%
Visibility—
Dew point59°
Mon, 1775° / 61°0.04
75 °
South Salem, Monday, 17 August
Light rain. High 75°, low 61°.
Pressure30.06 inHg
Wind7.3 mph N
Humidity78%
Visibility—
Dew point66°
Tue, 1879° / 60°0
79 °
South Salem, Tuesday, 18 August
Clear. High 79°, low 60°.
Pressure30.06 inHg
Wind4.9 mph SE
Humidity62%
Visibility—
Dew point62°
Wed, 1980° / 63°0
80 °
South Salem, Wednesday, 19 August
Overcast. High 80°, low 63°.
Pressure30.03 inHg
Wind9 mph SE
Humidity78%
Visibility—
Dew point67°
Thu, 2088° / 69°0
88 °
South Salem, Thursday, 20 August
Overcast. High 88°, low 69°.
Pressure29.85 inHg
Wind15.9 mph SW
Humidity77%
Visibility—
Dew point74°
Fri, 2188° / 73°0
88 °
South Salem, Friday, 21 August
Clear. High 88°, low 73°.
Pressure29.85 inHg
Wind8.7 mph SW
Humidity73%
Visibility—
Dew point76°
Sat, 2286° / 69°0
86 °
South Salem, Saturday, 22 August
Partly cloudy. High 86°, low 69°.
Pressure29.94 inHg
Wind8.8 mph SE
Humidity67%
Visibility—
Dew point70°
Sun, 2389° / 75°0
89 °
South Salem, Sunday, 23 August
Partly cloudy. High 89°, low 75°.
Pressure29.88 inHg
Wind12.9 mph W
Humidity63%
Visibility—
Dew point73°
Mon, 2485° / 72°0.17
85 °
South Salem, Monday, 24 August
Rain. High 85°, low 72°.
Pressure30.03 inHg
Wind13 mph NE
Humidity78%
Visibility—
Dew point72°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 63°0.05
80 °
South Salem, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.05 in
Chance of precipitation28%
Record high91° (1983)
Record low51° (1984)
Wed, 2681° / 64°0.09
81 °
South Salem, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation35%
Record high89° (2020)
Record low51° (2025)
Thu, 2781° / 64°0.08
81 °
South Salem, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation32%
Record high90° (2024)
Record low49° (2025)
Fri, 2880° / 64°0.16
80 °
South Salem, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.16 in
Chance of precipitation37%
Record high89° (1990)
Record low50° (1986)
Sat, 2980° / 63°0.11
80 °
South Salem, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation32%
Record high90° (2007)
Record low44° (1986)
Sun, 3079° / 63°0.13
79 °
South Salem, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.13 in
Chance of precipitation27%
Record high91° (2024)
Record low48° (1986)
Mon, 3179° / 62°0.07
79 °
South Salem, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation28%
Record high89° (2012)
Record low49° (2009)
Tue, 0179° / 62°0.09
79 °
South Salem, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high95° (2011)
Record low47° (1967)
Wed, 0279° / 63°0.09
79 °
South Salem, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.09 in
Chance of precipitation30%
Record high96° (2011)
Record low48° (1967)
Thu, 0379° / 62°0.1
79 °
South Salem, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.1 in
Chance of precipitation27%
Record high95° (2011)
Record low50° (1994)
Fri, 0478° / 62°0.06
78 °
South Salem, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.06 in
Chance of precipitation27%
Record high91° (1999)
Record low46° (1974)
Sat, 0578° / 61°0.06
78 °
South Salem, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation27%
Record high91° (2007)
Record low47° (1997)
Sun, 0678° / 61°0.04
78 °
South Salem, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.04 in
Chance of precipitation20%
Record high91° (1998)
Record low46° (1988)
Mon, 0777° / 61°0.06
77 °
South Salem, Monday, 7 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.06 in
Chance of precipitation23%
Record high91° (2002)
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 Salem, 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 Salem, 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.