Monthly outlook for Barnett, MS: average high 99.7°, average low 74.7°. That is 5.1° above the climate normal for August. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 19 August (104.6°), the coolest 9 August (72°).
99.7°/74.7°
Average high / low
+5.1°
Above normal
6 / 7
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
99.8°
90.3°
+5.3°
19 August – 28 August
99.5°
90.5°
+5°
29 August – 7 September
at normal
88.2°
—
August records over 66 years
104.2°14 August 2007All-time high
60.1°14 August 2004All-time low
Climate normals and records are computed from the nearest reference point — Heidelberg (8 mi).
Mon, 1095° / 72°0.01
95 °
Barnett, Monday, 10 August
Light rain. High 95°, low 72°.
Pressure30.12 inHg
Wind2.4 mph SW
Humidity46%
Visibility6.2 mi
Dew point71°
Tue, 1198° / 75°0.02
98 °
Barnett, Tuesday, 11 August
Light rain. High 98°, low 75°.
Pressure30.09 inHg
Wind4.9 mph SW
Humidity48%
Visibility6.2 mi
Dew point71°
Wed, 12101° / 75°0
101 °
Barnett, Wednesday, 12 August
Clear. High 101°, low 75°.
Pressure30.03 inHg
Wind5.1 mph W
Humidity45%
Visibility6.2 mi
Dew point71°
Thu, 1399° / 77°0
99 °
Barnett, Thursday, 13 August
Mostly clear. High 99°, low 77°.
Pressure30.03 inHg
Wind5.3 mph W
Humidity43%
Visibility6.2 mi
Dew point69°
Fri, 14101° / 77°0
101 °
Barnett, Friday, 14 August
Overcast. High 101°, low 77°.
Pressure30.09 inHg
Wind6.6 mph W
Humidity34%
Visibility—
Dew point62°
Sat, 15103° / 74°0
103 °
Barnett, Saturday, 15 August
Mostly clear. High 103°, low 74°.
Pressure30.15 inHg
Wind9.7 mph S
Humidity32%
Visibility—
Dew point62°
Sun, 16101° / 76°0
101 °
Barnett, Sunday, 16 August
Clear. High 101°, low 76°.
Pressure30.09 inHg
Wind8.5 mph S
Humidity31%
Visibility—
Dew point62°
Mon, 17101° / 77°0
101 °
Barnett, Monday, 17 August
Mostly clear. High 101°, low 77°.
Pressure30.06 inHg
Wind7.5 mph SW
Humidity33%
Visibility—
Dew point64°
Tue, 18105° / 78°0
105 °
Barnett, Tuesday, 18 August
Clear. High 105°, low 78°.
Pressure30.03 inHg
Wind6.2 mph W
Humidity32%
Visibility—
Dew point65°
Wed, 19105° / 76°0.1
105 °
Barnett, Wednesday, 19 August
Light rain. High 105°, low 76°.
Pressure30.00 inHg
Wind8.4 mph E
Humidity28%
Visibility—
Dew point62°
Thu, 20104° / 75°0.06
104 °
Barnett, Thursday, 20 August
Light rain. High 104°, low 75°.
Pressure29.97 inHg
Wind9.5 mph S
Humidity35%
Visibility—
Dew point66°
Fri, 21102° / 73°0.37
102 °
Barnett, Friday, 21 August
Rain. High 102°, low 73°.
Pressure29.94 inHg
Wind15.3 mph SW
Humidity38%
Visibility—
Dew point66°
Sat, 2298° / 73°0.52
98 °
Barnett, Saturday, 22 August
Rain. High 98°, low 73°.
Pressure29.97 inHg
Wind14.7 mph S
Humidity41%
Visibility—
Dew point66°
Sun, 2396° / 73°0.23
96 °
Barnett, Sunday, 23 August
Rain. High 96°, low 73°.
Pressure30.03 inHg
Wind11.7 mph S
Humidity46%
Visibility—
Dew point67°
Mon, 2492° / 73°0.08
92 °
Barnett, Monday, 24 August
Light rain. High 92°, low 73°.
Pressure30.12 inHg
Wind7.3 mph S
Humidity43%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2590° / 73°0.14
90 °
Barnett, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high90°
Average low73°
Average precipitation0.14 in
Chance of precipitation30%
Record high102° (2023)
Record low65° (2009)
Wed, 2690° / 73°0.08
90 °
Barnett, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high90°
Average low73°
Average precipitation0.08 in
Chance of precipitation33%
Record high102° (2023)
Record low63° (1966)
Thu, 2790° / 73°0.11
90 °
Barnett, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high90°
Average low73°
Average precipitation0.11 in
Chance of precipitation37%
Record high100° (2000)
Record low64° (2015)
Fri, 2889° / 72°0.13
89 °
Barnett, Friday, 28 August
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.13 in
Chance of precipitation48%
Record high99° (2000)
Record low65° (2013)
Sat, 2989° / 72°0.21
89 °
Barnett, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.21 in
Chance of precipitation48%
Record high103° (2000)
Record low61° (1992)
Sun, 3089° / 72°0.24
89 °
Barnett, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.24 in
Chance of precipitation53%
Record high99° (2000)
Record low62° (1986)
Mon, 3189° / 72°0.08
89 °
Barnett, Monday, 31 August
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.08 in
Chance of precipitation40%
Record high101° (2011)
Record low64° (1986)
Tue, 0189° / 72°0.09
89 °
Barnett, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.09 in
Chance of precipitation40%
Record high97° (1995)
Record low65° (1967)
Wed, 0289° / 72°0.09
89 °
Barnett, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.09 in
Chance of precipitation40%
Record high97° (1964)
Record low63° (1967)
Thu, 0388° / 72°0.12
88 °
Barnett, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high88°
Average low72°
Average precipitation0.12 in
Chance of precipitation42%
Record high97° (1964)
Record low65° (1967)
Fri, 0488° / 72°0.17
88 °
Barnett, Friday, 4 September
Climate normal for this date — 60-year average.
Average high88°
Average low72°
Average precipitation0.17 in
Chance of precipitation38%
Record high100° (1990)
Record low60° (1974)
Sat, 0588° / 71°0.12
88 °
Barnett, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.12 in
Chance of precipitation40%
Record high100° (2019)
Record low59° (1974)
Sun, 0686° / 71°0.14
86 °
Barnett, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low71°
Average precipitation0.14 in
Chance of precipitation37%
Record high98° (2019)
Record low60° (2011)
Mon, 0788° / 70°0.1
88 °
Barnett, Monday, 7 September
Climate normal for this date — 60-year average.
Average high88°
Average low70°
Average precipitation0.1 in
Chance of precipitation32%
Record high99° (2019)
Record low57° (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 Barnett, MS 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 Barnett, MS 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.