Monthly outlook for Hartwell, AR: average high 100.9°, average low 74.5°. That is 8.1° above the climate normal for August. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 22 August (110.1°), the coolest 24 August (64°).
100.9°/74.5°
Average high / low
+8.1°
Above normal
2 / 6
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
100.8°
86.2°
+8.1°
19 August – 28 August
101.2°
86.6°
+8.1°
29 August – 7 September
at normal
84.1°
—
August records over 66 years
107.6°3 August 2011All-time high
51.8°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Huntsville (4 mi).
Mon, 1096° / 73°0
96 °
Hartwell, Monday, 10 August
Clear. High 96°, low 73°.
Pressure30.00 inHg
Wind10.5 mph SW
Humidity39%
Visibility6.2 mi
Dew point64°
Tue, 11100° / 74°0
100 °
Hartwell, Tuesday, 11 August
Clear. High 100°, low 74°.
Pressure29.97 inHg
Wind11.8 mph SW
Humidity38%
Visibility6.2 mi
Dew point64°
Wed, 12101° / 81°0.02
101 °
Hartwell, Wednesday, 12 August
Light rain. High 101°, low 81°.
Pressure29.91 inHg
Wind12.4 mph SW
Humidity37%
Visibility6.2 mi
Dew point64°
Thu, 13101° / 78°0
101 °
Hartwell, Thursday, 13 August
Overcast. High 101°, low 78°.
Pressure29.85 inHg
Wind12.9 mph SW
Humidity29%
Visibility—
Dew point59°
Fri, 14102° / 81°0
102 °
Hartwell, Friday, 14 August
Mostly clear. High 102°, low 81°.
Pressure29.97 inHg
Wind13.3 mph SW
Humidity30%
Visibility—
Dew point60°
Sat, 15103° / 75°0
103 °
Hartwell, Saturday, 15 August
Clear. High 103°, low 75°.
Pressure30.09 inHg
Wind11.5 mph SW
Humidity25%
Visibility—
Dew point55°
Sun, 16107° / 77°0
107 °
Hartwell, Sunday, 16 August
Mostly clear. High 107°, low 77°.
Pressure30.03 inHg
Wind9.8 mph SW
Humidity21%
Visibility—
Dew point53°
Mon, 17101° / 71°0.17
101 °
Hartwell, Monday, 17 August
Rain. High 101°, low 71°.
Pressure29.97 inHg
Wind14.7 mph E
Humidity29%
Visibility—
Dew point60°
Tue, 18105° / 72°0.01
105 °
Hartwell, Tuesday, 18 August
Light rain. High 105°, low 72°.
Pressure29.88 inHg
Wind14.6 mph SW
Humidity27%
Visibility—
Dew point55°
Wed, 19105° / 78°0
105 °
Hartwell, Wednesday, 19 August
Mostly clear. High 105°, low 78°.
Pressure29.83 inHg
Wind11.6 mph NE
Humidity20%
Visibility—
Dew point51°
Thu, 20101° / 74°0
101 °
Hartwell, Thursday, 20 August
Partly cloudy. High 101°, low 74°.
Pressure29.88 inHg
Wind6.7 mph SW
Humidity27%
Visibility—
Dew point57°
Fri, 21104° / 70°0.03
104 °
Hartwell, Friday, 21 August
Light rain. High 104°, low 70°.
Pressure29.80 inHg
Wind10.4 mph SW
Humidity30%
Visibility—
Dew point58°
Sat, 22110° / 82°0
110 °
Hartwell, Saturday, 22 August
Partly cloudy. High 110°, low 82°.
Pressure29.83 inHg
Wind13.4 mph SW
Humidity20%
Visibility—
Dew point54°
Sun, 23100° / 73°0
100 °
Hartwell, Sunday, 23 August
Mostly clear. High 100°, low 73°.
Pressure30.06 inHg
Wind9.1 mph NE
Humidity28%
Visibility—
Dew point55°
Mon, 2486° / 64°0.19
86 °
Hartwell, Monday, 24 August
Light rain. High 86°, low 64°.
Pressure30.12 inHg
Wind11.4 mph SE
Humidity69%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 69°0.04
87 °
Hartwell, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.04 in
Chance of precipitation28%
Record high99° (2023)
Record low58° (1966)
Wed, 2687° / 69°0.05
87 °
Hartwell, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.05 in
Chance of precipitation25%
Record high97° (2023)
Record low60° (1966)
Thu, 2786° / 69°0.12
86 °
Hartwell, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.12 in
Chance of precipitation35%
Record high98° (2000)
Record low58° (2025)
Fri, 2886° / 68°0.13
86 °
Hartwell, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.13 in
Chance of precipitation33%
Record high98° (2000)
Record low56° (1992)
Sat, 2985° / 68°0.08
85 °
Hartwell, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.08 in
Chance of precipitation30%
Record high99° (2000)
Record low52° (1986)
Sun, 3085° / 68°0.11
85 °
Hartwell, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.11 in
Chance of precipitation37%
Record high100° (2000)
Record low55° (1986)
Mon, 3185° / 68°0.08
85 °
Hartwell, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.08 in
Chance of precipitation32%
Record high100° (2000)
Record low55° (2009)
Tue, 0184° / 68°0.12
84 °
Hartwell, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.12 in
Chance of precipitation35%
Record high100° (2000)
Record low52° (1967)
Wed, 0283° / 67°0.15
83 °
Hartwell, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.15 in
Chance of precipitation45%
Record high99° (2000)
Record low51° (1974)
Thu, 0384° / 67°0.15
84 °
Hartwell, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.15 in
Chance of precipitation35%
Record high101° (2000)
Record low49° (1974)
Fri, 0483° / 67°0.08
83 °
Hartwell, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.08 in
Chance of precipitation28%
Record high99° (2000)
Record low48° (1974)
Sat, 0583° / 66°0.08
83 °
Hartwell, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.08 in
Chance of precipitation33%
Record high97° (1998)
Record low50° (1974)
Sun, 0684° / 65°0.04
84 °
Hartwell, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high84°
Average low65°
Average precipitation0.04 in
Chance of precipitation18%
Record high99° (2012)
Record low51° (1974)
Mon, 0784° / 66°0.06
84 °
Hartwell, Monday, 7 September
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.06 in
Chance of precipitation30%
Record high97° (1998)
Record low51° (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 Hartwell, 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 Hartwell, 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.