Monthly outlook for Louisville, AL: average high 98.8°, average low 75°. That is 5.7° above the climate normal for August. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 8 days and 2.2 inches. The warmest day looks like 20 August (108.2°), the coolest 10 August (72.8°).
98.8°/75°
Average high / low
+5.7°
Above normal
6 / 8
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
96.6°
88.4°
+4.5°
19 August – 28 August
102.6°
88.5°
+7.8°
29 August – 7 September
at normal
86.7°
—
August records over 66 years
102.9°10 August 2007All-time high
61°30 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Clayton (9 mi).
Mon, 1095° / 73°0.02
95 °
Louisville, Monday, 10 August
Light rain. High 95°, low 73°.
Pressure30.15 inHg
Wind5.7 mph SW
Humidity47%
Visibility6.2 mi
Dew point68°
Tue, 1197° / 73°0
97 °
Louisville, Tuesday, 11 August
Mostly clear. High 97°, low 73°.
Pressure30.09 inHg
Wind7.2 mph SW
Humidity46%
Visibility6.2 mi
Dew point68°
Wed, 1295° / 76°0
95 °
Louisville, Wednesday, 12 August
Clear. High 95°, low 76°.
Pressure30.03 inHg
Wind7.8 mph W
Humidity50%
Visibility6.2 mi
Dew point71°
Thu, 1396° / 73°0.44
96 °
Louisville, Thursday, 13 August
Rain. High 96°, low 73°.
Pressure30.00 inHg
Wind10 mph W
Humidity44%
Visibility—
Dew point68°
Fri, 1497° / 73°0
97 °
Louisville, Friday, 14 August
Partly cloudy. High 97°, low 73°.
Pressure30.09 inHg
Wind9.3 mph W
Humidity46%
Visibility—
Dew point68°
Sat, 1597° / 76°0.02
97 °
Louisville, Saturday, 15 August
Light rain. High 97°, low 76°.
Pressure30.15 inHg
Wind10.1 mph SE
Humidity41%
Visibility—
Dew point67°
Sun, 1696° / 75°0.1
96 °
Louisville, Sunday, 16 August
Light rain. High 96°, low 75°.
Pressure30.12 inHg
Wind7.2 mph S
Humidity50%
Visibility—
Dew point70°
Mon, 17101° / 76°0.05
101 °
Louisville, Monday, 17 August
Light rain. High 101°, low 76°.
Pressure30.09 inHg
Wind13 mph W
Humidity42%
Visibility—
Dew point68°
Tue, 18103° / 75°0.03
103 °
Louisville, Tuesday, 18 August
Light rain. High 103°, low 75°.
Pressure30.00 inHg
Wind11 mph W
Humidity38%
Visibility—
Dew point66°
Wed, 19102° / 75°0
102 °
Louisville, Wednesday, 19 August
Clear. High 102°, low 75°.
Pressure29.91 inHg
Wind15 mph NW
Humidity32%
Visibility—
Dew point64°
Thu, 20108° / 78°0
108 °
Louisville, Thursday, 20 August
Clear. High 108°, low 78°.
Pressure29.83 inHg
Wind14.9 mph NW
Humidity25%
Visibility—
Dew point60°
Fri, 21103° / 79°0.01
103 °
Louisville, Friday, 21 August
Light rain. High 103°, low 79°.
Pressure29.91 inHg
Wind7.4 mph NW
Humidity34%
Visibility—
Dew point64°
Sat, 22104° / 74°0.41
104 °
Louisville, Saturday, 22 August
Rain. High 104°, low 74°.
Pressure29.97 inHg
Wind10.2 mph NW
Humidity32%
Visibility—
Dew point65°
Sun, 23100° / 73°0.36
100 °
Louisville, Sunday, 23 August
Rain. High 100°, low 73°.
Pressure30.06 inHg
Wind13.3 mph W
Humidity38%
Visibility—
Dew point64°
Mon, 2498° / 76°0.04
98 °
Louisville, Monday, 24 August
Light rain. High 98°, low 76°.
Pressure30.06 inHg
Wind5.5 mph N
Humidity38%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2588° / 72°0.11
88 °
Louisville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low72°
Average precipitation0.11 in
Chance of precipitation42%
Record high99° (2023)
Record low65° (1969)
Wed, 2688° / 71°0.1
88 °
Louisville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.1 in
Chance of precipitation42%
Record high99° (2023)
Record low64° (1969)
Thu, 2788° / 72°0.09
88 °
Louisville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high88°
Average low72°
Average precipitation0.09 in
Chance of precipitation42%
Record high100° (2023)
Record low65° (2025)
Fri, 2888° / 72°0.09
88 °
Louisville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high88°
Average low72°
Average precipitation0.09 in
Chance of precipitation45%
Record high97° (1998)
Record low64° (2025)
Sat, 2988° / 72°0.09
88 °
Louisville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high88°
Average low72°
Average precipitation0.09 in
Chance of precipitation47%
Record high97° (2011)
Record low63° (1992)
Sun, 3087° / 72°0.15
87 °
Louisville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low72°
Average precipitation0.15 in
Chance of precipitation57%
Record high96° (2011)
Record low61° (1992)
Mon, 3187° / 72°0.17
87 °
Louisville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low72°
Average precipitation0.17 in
Chance of precipitation50%
Record high95° (1998)
Record low62° (1996)
Tue, 0187° / 71°0.13
87 °
Louisville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.13 in
Chance of precipitation38%
Record high95° (1964)
Record low61° (1996)
Wed, 0287° / 71°0.09
87 °
Louisville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.09 in
Chance of precipitation47%
Record high95° (2014)
Record low62° (1967)
Thu, 0387° / 71°0.15
87 °
Louisville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.15 in
Chance of precipitation47%
Record high95° (2020)
Record low61° (1967)
Fri, 0487° / 71°0.2
87 °
Louisville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.2 in
Chance of precipitation35%
Record high97° (2020)
Record low63° (1974)
Sat, 0586° / 71°0.13
86 °
Louisville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low71°
Average precipitation0.13 in
Chance of precipitation32%
Record high96° (2020)
Record low63° (1967)
Sun, 0686° / 70°0.11
86 °
Louisville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.11 in
Chance of precipitation37%
Record high93° (1960)
Record low61° (2011)
Mon, 0786° / 70°0.13
86 °
Louisville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.13 in
Chance of precipitation30%
Record high98° (2019)
Record low57° (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 Louisville, AL 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 Louisville, AL 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.