Monthly outlook for Rock Hill, IN: average high 85.9°, average low 68.2°. That is 0.1° above the climate normal for August. Precipitation is expected on 9 days (about 1.9 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (93.8°), the coolest 21 August (59.4°).
85.9°/68.2°
Average high / low
+0.1°
Above normal
9 / 5
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.4°
85.6°
+0.4°
18 August – 27 August
85.1°
85.8°
-0.4°
28 August – 6 September
at normal
84.3°
—
August records over 66 years
103.5°15 August 2007All-time high
52.3°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Tell City (15 mi).
Sun, 0993° / 73°0.01
93 °
Rock Hill, Sunday, 9 August
Light rain. High 93°, low 73°.
Pressure30.06 inHg
Wind7.7 mph SW
Humidity64%
Visibility6.2 mi
Dew point74°
Mon, 1094° / 73°0
94 °
Rock Hill, Monday, 10 August
Mostly clear. High 94°, low 73°.
Pressure30.03 inHg
Wind11.8 mph SW
Humidity60%
Visibility6.2 mi
Dew point72°
Tue, 1194° / 73°0
94 °
Rock Hill, Tuesday, 11 August
Clear. High 94°, low 73°.
Pressure29.94 inHg
Wind12.6 mph SW
Humidity54%
Visibility6.2 mi
Dew point72°
Wed, 1287° / 69°0.22
87 °
Rock Hill, Wednesday, 12 August
Rain. High 87°, low 69°.
Pressure29.88 inHg
Wind10 mph W
Humidity74%
Visibility6.2 mi
Dew point72°
Thu, 1384° / 68°0.05
84 °
Rock Hill, Thursday, 13 August
Light rain. High 84°, low 68°.
Pressure29.97 inHg
Wind9.9 mph NE
Humidity71%
Visibility—
Dew point69°
Fri, 1475° / 67°1.06
75 °
Rock Hill, Friday, 14 August
Heavy rain. High 75°, low 67°.
Pressure30.03 inHg
Wind9.1 mph NE
Humidity91%
Visibility—
Dew point71°
Sat, 1575° / 65°0.13
75 °
Rock Hill, Saturday, 15 August
Light rain. High 75°, low 65°.
Pressure30.27 inHg
Wind9.3 mph NE
Humidity92%
Visibility—
Dew point65°
Sun, 1688° / 65°0.12
88 °
Rock Hill, Sunday, 16 August
Light rain. High 88°, low 65°.
Pressure30.06 inHg
Wind8.6 mph SE
Humidity68%
Visibility—
Dew point70°
Mon, 1785° / 71°0.04
85 °
Rock Hill, Monday, 17 August
Light rain. High 85°, low 71°.
Pressure30.03 inHg
Wind7 mph N
Humidity70%
Visibility—
Dew point72°
Tue, 1887° / 70°0.15
87 °
Rock Hill, Tuesday, 18 August
Light rain. High 87°, low 70°.
Pressure29.97 inHg
Wind5.5 mph E
Humidity64%
Visibility—
Dew point71°
Wed, 1987° / 70°0
87 °
Rock Hill, Wednesday, 19 August
Light rain. High 87°, low 70°.
Pressure29.91 inHg
Wind8.5 mph N
Humidity65%
Visibility—
Dew point71°
Thu, 2078° / 61°0
78 °
Rock Hill, Thursday, 20 August
Clear. High 78°, low 61°.
Pressure29.97 inHg
Wind10.7 mph N
Humidity54%
Visibility—
Dew point57°
Fri, 2179° / 59°0
79 °
Rock Hill, Friday, 21 August
Partly cloudy. High 79°, low 59°.
Pressure30.06 inHg
Wind8.5 mph NE
Humidity50%
Visibility—
Dew point54°
Sat, 2288° / 63°0.06
88 °
Rock Hill, Saturday, 22 August
Light rain. High 88°, low 63°.
Pressure29.88 inHg
Wind13.2 mph S
Humidity58%
Visibility—
Dew point65°
Sun, 2392° / 71°0.05
92 °
Rock Hill, Sunday, 23 August
Light rain. High 92°, low 71°.
Pressure29.94 inHg
Wind9.3 mph W
Humidity54%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 69°0.12
85 °
Rock Hill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.12 in
Chance of precipitation28%
Record high98° (2007)
Record low59° (1997)
Tue, 2586° / 69°0.07
86 °
Rock Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.07 in
Chance of precipitation23%
Record high98° (2023)
Record low59° (2025)
Wed, 2686° / 69°0.08
86 °
Rock Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.08 in
Chance of precipitation27%
Record high97° (1983)
Record low56° (2025)
Thu, 2786° / 70°0.09
86 °
Rock Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.09 in
Chance of precipitation35%
Record high95° (2024)
Record low55° (2025)
Fri, 2886° / 69°0.12
86 °
Rock Hill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.12 in
Chance of precipitation30%
Record high97° (2007)
Record low57° (1986)
Sat, 2985° / 69°0.13
85 °
Rock Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.13 in
Chance of precipitation35%
Record high98° (2024)
Record low52° (1986)
Sun, 3085° / 69°0.15
85 °
Rock Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.15 in
Chance of precipitation30%
Record high95° (2012)
Record low54° (1986)
Mon, 3185° / 68°0.1
85 °
Rock Hill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.1 in
Chance of precipitation40%
Record high95° (1995)
Record low58° (2009)
Tue, 0184° / 68°0.12
84 °
Rock Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.12 in
Chance of precipitation32%
Record high98° (2011)
Record low54° (1967)
Wed, 0284° / 68°0.16
84 °
Rock Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.16 in
Chance of precipitation30%
Record high98° (2011)
Record low54° (2017)
Thu, 0384° / 68°0.1
84 °
Rock Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.1 in
Chance of precipitation28%
Record high100° (2011)
Record low55° (1974)
Fri, 0483° / 67°0.07
83 °
Rock Hill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.07 in
Chance of precipitation28%
Record high97° (1999)
Record low54° (1974)
Sat, 0583° / 67°0.12
83 °
Rock Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.12 in
Chance of precipitation28%
Record high97° (1999)
Record low54° (1974)
Sun, 0683° / 66°0.03
83 °
Rock Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.03 in
Chance of precipitation17%
Record high97° (1998)
Record low55° (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 Rock Hill, 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 Rock Hill, 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.