Monthly outlook for Monticello, AR: average high 103.2°, average low 77.1°. That is 6.8° above the climate normal for August. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 20 August (110.3°), the coolest 9 August (70°).
103.2°/77.1°
Average high / low
+6.8°
Above normal
2 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
100.2°
90.8°
+5.2°
18 August – 27 August
108.3°
91.1°
+9.6°
28 August – 6 September
at normal
88.3°
—
August records over 66 years
105.8°30 August 2000All-time high
61.2°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Collins (14 mi).
Sun, 0993° / 70°0.27
93 °
Monticello, Sunday, 9 August
Rain. High 93°, low 70°.
Pressure30.06 inHg
Wind5.1 mph SW
Humidity44%
Visibility6.2 mi
Dew point68°
Mon, 10100° / 73°0
100 °
Monticello, Monday, 10 August
Mostly clear. High 100°, low 73°.
Pressure30.06 inHg
Wind6 mph SW
Humidity44%
Visibility6.2 mi
Dew point69°
Tue, 11100° / 75°0
100 °
Monticello, Tuesday, 11 August
Clear. High 100°, low 75°.
Pressure30.03 inHg
Wind7.9 mph SW
Humidity45%
Visibility6.2 mi
Dew point70°
Wed, 12100° / 79°0.01
100 °
Monticello, Wednesday, 12 August
Light rain. High 100°, low 79°.
Pressure29.94 inHg
Wind8.1 mph SW
Humidity40%
Visibility6.2 mi
Dew point68°
Thu, 13102° / 79°0
102 °
Monticello, Thursday, 13 August
Partly cloudy. High 102°, low 79°.
Pressure29.91 inHg
Wind9.4 mph SW
Humidity33%
Visibility—
Dew point63°
Fri, 14102° / 78°0
102 °
Monticello, Friday, 14 August
Overcast. High 102°, low 78°.
Pressure30.03 inHg
Wind9.6 mph SW
Humidity34%
Visibility—
Dew point63°
Sat, 15104° / 77°0
104 °
Monticello, Saturday, 15 August
Partly cloudy. High 104°, low 77°.
Pressure30.12 inHg
Wind7.8 mph SW
Humidity33%
Visibility—
Dew point63°
Sun, 16106° / 79°0
106 °
Monticello, Sunday, 16 August
Overcast. High 106°, low 79°.
Pressure30.06 inHg
Wind8.1 mph W
Humidity28%
Visibility—
Dew point61°
Mon, 17106° / 79°0
106 °
Monticello, Monday, 17 August
Overcast. High 106°, low 79°.
Pressure30.03 inHg
Wind10 mph W
Humidity24%
Visibility—
Dew point56°
Tue, 18107° / 80°0
107 °
Monticello, Tuesday, 18 August
Clear. High 107°, low 80°.
Pressure29.97 inHg
Wind10 mph W
Humidity23%
Visibility—
Dew point56°
Wed, 19109° / 81°0
109 °
Monticello, Wednesday, 19 August
Clear. High 109°, low 81°.
Pressure29.91 inHg
Wind10.2 mph W
Humidity27%
Visibility—
Dew point61°
Thu, 20110° / 79°0
110 °
Monticello, Thursday, 20 August
Clear. High 110°, low 79°.
Pressure29.85 inHg
Wind9.1 mph W
Humidity24%
Visibility—
Dew point58°
Fri, 21109° / 78°0
109 °
Monticello, Friday, 21 August
Clear. High 109°, low 78°.
Pressure29.88 inHg
Wind7 mph W
Humidity26%
Visibility—
Dew point60°
Sat, 22108° / 78°0
108 °
Monticello, Saturday, 22 August
Clear. High 108°, low 78°.
Pressure29.91 inHg
Wind10.5 mph SW
Humidity24%
Visibility—
Dew point56°
Sun, 23107° / 77°0
107 °
Monticello, Sunday, 23 August
Clear. High 107°, low 77°.
Pressure29.97 inHg
Wind9.3 mph SW
Humidity24%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2491° / 75°0.05
91 °
Monticello, Monday, 24 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.05 in
Chance of precipitation23%
Record high102° (2023)
Record low65° (2009)
Tue, 2591° / 74°0.04
91 °
Monticello, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.04 in
Chance of precipitation23%
Record high103° (2023)
Record low63° (1966)
Wed, 2691° / 75°0.02
91 °
Monticello, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.02 in
Chance of precipitation22%
Record high103° (2023)
Record low64° (1966)
Thu, 2791° / 74°0.07
91 °
Monticello, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.07 in
Chance of precipitation22%
Record high102° (2000)
Record low66° (2025)
Fri, 2890° / 74°0.08
90 °
Monticello, Friday, 28 August
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.08 in
Chance of precipitation37%
Record high103° (2000)
Record low65° (2025)
Sat, 2989° / 74°0.14
89 °
Monticello, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high89°
Average low74°
Average precipitation0.14 in
Chance of precipitation33%
Record high104° (2000)
Record low61° (1986)
Sun, 3089° / 73°0.2
89 °
Monticello, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.2 in
Chance of precipitation37%
Record high106° (2000)
Record low62° (1986)
Mon, 3189° / 73°0.14
89 °
Monticello, Monday, 31 August
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.14 in
Chance of precipitation23%
Record high105° (2000)
Record low64° (1986)
Tue, 0189° / 73°0.09
89 °
Monticello, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.09 in
Chance of precipitation25%
Record high102° (2000)
Record low62° (1967)
Wed, 0288° / 73°0.17
88 °
Monticello, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high88°
Average low73°
Average precipitation0.17 in
Chance of precipitation40%
Record high100° (2000)
Record low60° (1967)
Thu, 0388° / 73°0.25
88 °
Monticello, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high88°
Average low73°
Average precipitation0.25 in
Chance of precipitation38%
Record high101° (2000)
Record low60° (1974)
Fri, 0487° / 72°0.15
87 °
Monticello, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low72°
Average precipitation0.15 in
Chance of precipitation27%
Record high103° (2000)
Record low57° (1974)
Sat, 0587° / 72°0.08
87 °
Monticello, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low72°
Average precipitation0.08 in
Chance of precipitation30%
Record high99° (1990)
Record low60° (1974)
Sun, 0687° / 72°0.08
87 °
Monticello, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low72°
Average precipitation0.08 in
Chance of precipitation20%
Record high100° (2019)
Record low60° (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 Monticello, 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 Monticello, 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.