Monthly outlook for Shelbyville, AR: average high 103.1°, average low 75.6°. That is 8.1° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 22 August (113.2°), the coolest 24 August (64.6°).
103.1°/75.6°
Average high / low
+8.1°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
103.6°
88.4°
+8.5°
19 August – 28 August
102.2°
88.8°
+7.5°
29 August – 7 September
at normal
86°
—
August records over 66 years
109.4°3 August 2011All-time high
53.4°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Cave City (8 mi).
Mon, 1099° / 73°0
99 °
Shelbyville, Monday, 10 August
Clear. High 99°, low 73°.
Pressure30.03 inHg
Wind10.5 mph SW
Humidity39%
Visibility6.2 mi
Dew point67°
Tue, 11102° / 77°0
102 °
Shelbyville, Tuesday, 11 August
Clear. High 102°, low 77°.
Pressure29.97 inHg
Wind10.6 mph SW
Humidity36%
Visibility6.2 mi
Dew point66°
Wed, 12104° / 78°0.03
104 °
Shelbyville, Wednesday, 12 August
Light rain. High 104°, low 78°.
Pressure29.88 inHg
Wind10 mph W
Humidity31%
Visibility6.2 mi
Dew point65°
Thu, 13106° / 78°0
106 °
Shelbyville, Thursday, 13 August
Partly cloudy. High 106°, low 78°.
Pressure29.85 inHg
Wind12.3 mph SW
Humidity26%
Visibility—
Dew point59°
Fri, 14106° / 81°0
106 °
Shelbyville, Friday, 14 August
Mostly clear. High 106°, low 81°.
Pressure29.94 inHg
Wind11.3 mph SW
Humidity26%
Visibility—
Dew point59°
Sat, 15108° / 80°0
108 °
Shelbyville, Saturday, 15 August
Mostly clear. High 108°, low 80°.
Pressure30.06 inHg
Wind8.8 mph SW
Humidity18%
Visibility—
Dew point51°
Sun, 16109° / 83°0
109 °
Shelbyville, Sunday, 16 August
Mostly clear. High 109°, low 83°.
Pressure30.00 inHg
Wind8.2 mph S
Humidity18%
Visibility—
Dew point52°
Mon, 17100° / 77°0.02
100 °
Shelbyville, Monday, 17 August
Light rain. High 100°, low 77°.
Pressure30.00 inHg
Wind9.6 mph NE
Humidity49%
Visibility—
Dew point68°
Tue, 18107° / 74°0
107 °
Shelbyville, Tuesday, 18 August
Overcast. High 107°, low 74°.
Pressure29.85 inHg
Wind13.2 mph SW
Humidity30%
Visibility—
Dew point61°
Wed, 19106° / 88°0
106 °
Shelbyville, Wednesday, 19 August
Overcast. High 106°, low 88°.
Pressure29.80 inHg
Wind12.4 mph SW
Humidity24%
Visibility—
Dew point57°
Thu, 20101° / 70°0
101 °
Shelbyville, Thursday, 20 August
Clear. High 101°, low 70°.
Pressure29.91 inHg
Wind7.6 mph NE
Humidity28%
Visibility—
Dew point56°
Fri, 21103° / 67°0.06
103 °
Shelbyville, Friday, 21 August
Light rain. High 103°, low 67°.
Pressure29.83 inHg
Wind9.2 mph S
Humidity34%
Visibility—
Dew point60°
Sat, 22113° / 72°0.02
113 °
Shelbyville, Saturday, 22 August
Light rain. High 113°, low 72°.
Pressure29.80 inHg
Wind10.6 mph SW
Humidity22%
Visibility—
Dew point57°
Sun, 23100° / 74°0
100 °
Shelbyville, Sunday, 23 August
Partly cloudy. High 100°, low 74°.
Pressure30.06 inHg
Wind12.4 mph NE
Humidity23%
Visibility—
Dew point49°
Mon, 2490° / 65°0
90 °
Shelbyville, Monday, 24 August
Overcast. High 90°, low 65°.
Pressure30.12 inHg
Wind7.7 mph E
Humidity29%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2589° / 70°0.06
89 °
Shelbyville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high89°
Average low70°
Average precipitation0.06 in
Chance of precipitation25%
Record high103° (2023)
Record low58° (1966)
Wed, 2689° / 71°0.06
89 °
Shelbyville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high89°
Average low71°
Average precipitation0.06 in
Chance of precipitation15%
Record high101° (2023)
Record low60° (1966)
Thu, 2789° / 71°0.1
89 °
Shelbyville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high89°
Average low71°
Average precipitation0.1 in
Chance of precipitation23%
Record high100° (2000)
Record low58° (2025)
Fri, 2888° / 70°0.1
88 °
Shelbyville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high88°
Average low70°
Average precipitation0.1 in
Chance of precipitation32%
Record high103° (2000)
Record low58° (1967)
Sat, 2987° / 70°0.18
87 °
Shelbyville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low70°
Average precipitation0.18 in
Chance of precipitation33%
Record high104° (2000)
Record low53° (1986)
Sun, 3087° / 69°0.1
87 °
Shelbyville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.1 in
Chance of precipitation30%
Record high103° (2000)
Record low55° (1986)
Mon, 3187° / 69°0.11
87 °
Shelbyville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.11 in
Chance of precipitation35%
Record high102° (2000)
Record low58° (1988)
Tue, 0186° / 69°0.08
86 °
Shelbyville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.08 in
Chance of precipitation32%
Record high99° (2000)
Record low56° (1967)
Wed, 0286° / 69°0.16
86 °
Shelbyville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.16 in
Chance of precipitation37%
Record high99° (1975)
Record low56° (1967)
Thu, 0385° / 69°0.15
85 °
Shelbyville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.15 in
Chance of precipitation35%
Record high100° (2000)
Record low55° (1974)
Fri, 0485° / 68°0.13
85 °
Shelbyville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.13 in
Chance of precipitation27%
Record high99° (2000)
Record low54° (1974)
Sat, 0585° / 68°0.06
85 °
Shelbyville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.06 in
Chance of precipitation18%
Record high98° (1990)
Record low55° (1997)
Sun, 0686° / 67°0.07
86 °
Shelbyville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low67°
Average precipitation0.07 in
Chance of precipitation18%
Record high99° (1990)
Record low56° (1988)
Mon, 0786° / 67°0.07
86 °
Shelbyville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low67°
Average precipitation0.07 in
Chance of precipitation18%
Record high99° (1998)
Record low53° (1988)
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 Shelbyville, AR 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 Shelbyville, AR 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.