Monthly outlook for Diamond Grove, AR: average high 109.2°, average low 77.5°. That is 10.1° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 20 August (115.6°), the coolest 23 August (74°).
109.2°/77.5°
Average high / low
+10.1°
Above normal
0 / 4
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
107.1°
90.8°
+9.1°
19 August – 28 August
112.8°
91°
+12.1°
29 August – 7 September
at normal
88.4°
—
August records over 66 years
110.7°3 August 2011All-time high
57°13 August 2004All-time low
Climate normals and records are computed from the nearest reference point — Fort Smith (10 mi).
Mon, 10103° / 77°0
103 °
Diamond Grove, Monday, 10 August
Partly cloudy. High 103°, low 77°.
Pressure30.00 inHg
Wind6.8 mph SW
Humidity36%
Visibility6.2 mi
Dew point66°
Tue, 11105° / 76°0
105 °
Diamond Grove, Tuesday, 11 August
Clear. High 105°, low 76°.
Pressure29.94 inHg
Wind6.9 mph S
Humidity33%
Visibility6.2 mi
Dew point65°
Wed, 12102° / 78°0
102 °
Diamond Grove, Wednesday, 12 August
Overcast. High 102°, low 78°.
Pressure29.88 inHg
Wind10.6 mph SW
Humidity33%
Visibility6.2 mi
Dew point65°
Thu, 13107° / 78°0
107 °
Diamond Grove, Thursday, 13 August
Overcast. High 107°, low 78°.
Pressure29.85 inHg
Wind11.5 mph SW
Humidity24%
Visibility—
Dew point57°
Fri, 14107° / 77°0
107 °
Diamond Grove, Friday, 14 August
Mostly clear. High 107°, low 77°.
Pressure29.94 inHg
Wind10.4 mph SW
Humidity26%
Visibility—
Dew point59°
Sat, 15109° / 76°0
109 °
Diamond Grove, Saturday, 15 August
Overcast. High 109°, low 76°.
Pressure30.06 inHg
Wind8.7 mph SW
Humidity26%
Visibility—
Dew point60°
Sun, 16114° / 78°0
114 °
Diamond Grove, Sunday, 16 August
Clear. High 114°, low 78°.
Pressure30.03 inHg
Wind5 mph W
Humidity20%
Visibility—
Dew point56°
Mon, 17108° / 78°0.01
108 °
Diamond Grove, Monday, 17 August
Light rain. High 108°, low 78°.
Pressure29.97 inHg
Wind7.9 mph W
Humidity23%
Visibility—
Dew point53°
Tue, 18113° / 78°0
113 °
Diamond Grove, Tuesday, 18 August
Clear. High 113°, low 78°.
Pressure29.91 inHg
Wind8.3 mph S
Humidity17%
Visibility—
Dew point52°
Wed, 19114° / 79°0
114 °
Diamond Grove, Wednesday, 19 August
Clear. High 114°, low 79°.
Pressure29.91 inHg
Wind9 mph SW
Humidity16%
Visibility—
Dew point51°
Thu, 20116° / 79°0
116 °
Diamond Grove, Thursday, 20 August
Clear. High 116°, low 79°.
Pressure29.88 inHg
Wind9.2 mph SW
Humidity14%
Visibility—
Dew point49°
Fri, 21115° / 81°0.01
115 °
Diamond Grove, Friday, 21 August
Light rain. High 115°, low 81°.
Pressure29.88 inHg
Wind12.5 mph SE
Humidity16%
Visibility—
Dew point51°
Sat, 22111° / 77°0.01
111 °
Diamond Grove, Saturday, 22 August
Light rain. High 111°, low 77°.
Pressure29.88 inHg
Wind12.1 mph SE
Humidity21%
Visibility—
Dew point57°
Sun, 23110° / 74°0.01
110 °
Diamond Grove, Sunday, 23 August
Light rain. High 110°, low 74°.
Pressure29.88 inHg
Wind6.6 mph S
Humidity23%
Visibility—
Dew point56°
Mon, 24110° / 80°0
110 °
Diamond Grove, Monday, 24 August
Overcast. High 110°, low 80°.
Pressure29.91 inHg
Wind11.3 mph NE
Humidity22%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2591° / 73°0.05
91 °
Diamond Grove, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high91°
Average low73°
Average precipitation0.05 in
Chance of precipitation18%
Record high100° (2023)
Record low60° (1966)
Wed, 2691° / 72°0.06
91 °
Diamond Grove, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high91°
Average low72°
Average precipitation0.06 in
Chance of precipitation20%
Record high100° (1998)
Record low61° (1966)
Thu, 2791° / 72°0.07
91 °
Diamond Grove, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high91°
Average low72°
Average precipitation0.07 in
Chance of precipitation27%
Record high101° (2000)
Record low62° (1966)
Fri, 2890° / 72°0.09
90 °
Diamond Grove, Friday, 28 August
Climate normal for this date — 60-year average.
Average high90°
Average low72°
Average precipitation0.09 in
Chance of precipitation25%
Record high102° (1963)
Record low58° (1992)
Sat, 2990° / 71°0.04
90 °
Diamond Grove, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high90°
Average low71°
Average precipitation0.04 in
Chance of precipitation20%
Record high101° (2000)
Record low57° (1986)
Sun, 3089° / 71°0.06
89 °
Diamond Grove, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high89°
Average low71°
Average precipitation0.06 in
Chance of precipitation27%
Record high103° (2000)
Record low58° (1988)
Mon, 3189° / 72°0.07
89 °
Diamond Grove, Monday, 31 August
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.07 in
Chance of precipitation25%
Record high104° (2000)
Record low59° (1988)
Tue, 0189° / 71°0.11
89 °
Diamond Grove, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high89°
Average low71°
Average precipitation0.11 in
Chance of precipitation28%
Record high103° (2000)
Record low59° (1967)
Wed, 0287° / 71°0.19
87 °
Diamond Grove, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.19 in
Chance of precipitation42%
Record high103° (2000)
Record low57° (1967)
Thu, 0388° / 71°0.15
88 °
Diamond Grove, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.15 in
Chance of precipitation38%
Record high104° (2000)
Record low56° (1974)
Fri, 0488° / 70°0.07
88 °
Diamond Grove, Friday, 4 September
Climate normal for this date — 60-year average.
Average high88°
Average low70°
Average precipitation0.07 in
Chance of precipitation22%
Record high105° (2000)
Record low52° (1974)
Sat, 0588° / 70°0.09
88 °
Diamond Grove, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high88°
Average low70°
Average precipitation0.09 in
Chance of precipitation20%
Record high103° (1998)
Record low56° (1974)
Sun, 0688° / 69°0.04
88 °
Diamond Grove, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high88°
Average low69°
Average precipitation0.04 in
Chance of precipitation13%
Record high101° (2012)
Record low53° (1974)
Mon, 0788° / 69°0.04
88 °
Diamond Grove, Monday, 7 September
Climate normal for this date — 60-year average.
Average high88°
Average low69°
Average precipitation0.04 in
Chance of precipitation17%
Record high101° (2012)
Record low54° (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 Diamond Grove, 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 Diamond Grove, 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.