Monthly outlook for Sun Valley, AL: average high 96.5°, average low 74.2°. That is 4.4° above the climate normal for August. Precipitation is expected on 8 days (about 1.3 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 19 August (103.2°), the coolest 8 August (70.5°).
96.5°/74.2°
Average high / low
+4.4°
Above normal
8 / 7
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
94.4°
88.3°
+3.4°
18 August – 27 August
100°
88.7°
+6.2°
28 August – 6 September
at normal
86.5°
—
August records over 66 years
101.3°18 August 2000All-time high
56.8°30 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Birmingham (10 mi).
Sun, 0991° / 72°0
91 °
Sun Valley, Sunday, 9 August
Clear. High 91°, low 72°.
Pressure30.09 inHg
Wind3.6 mph S
Humidity45%
Visibility6.2 mi
Dew point68°
Mon, 1094° / 72°0.04
94 °
Sun Valley, Monday, 10 August
Light rain. High 94°, low 72°.
Pressure30.12 inHg
Wind4.7 mph SW
Humidity48%
Visibility6.2 mi
Dew point69°
Tue, 1193° / 72°0.58
93 °
Sun Valley, Tuesday, 11 August
Rain. High 93°, low 72°.
Pressure30.09 inHg
Wind6.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point71°
Wed, 1294° / 74°0.11
94 °
Sun Valley, Wednesday, 12 August
Light rain. High 94°, low 74°.
Pressure30.00 inHg
Wind8.5 mph W
Humidity50%
Visibility6.2 mi
Dew point71°
Thu, 1394° / 72°0.19
94 °
Sun Valley, Thursday, 13 August
Light rain. High 94°, low 72°.
Pressure29.97 inHg
Wind6.3 mph W
Humidity47%
Visibility—
Dew point68°
Fri, 1493° / 72°0.05
93 °
Sun Valley, Friday, 14 August
Light rain. High 93°, low 72°.
Pressure30.06 inHg
Wind7.8 mph W
Humidity47%
Visibility—
Dew point67°
Sat, 1596° / 76°0.08
96 °
Sun Valley, Saturday, 15 August
Light rain. High 96°, low 76°.
Pressure30.15 inHg
Wind8.1 mph NE
Humidity41%
Visibility—
Dew point64°
Sun, 1699° / 75°0
99 °
Sun Valley, Sunday, 16 August
Partly cloudy. High 99°, low 75°.
Pressure30.09 inHg
Wind5 mph S
Humidity39%
Visibility—
Dew point66°
Mon, 17102° / 76°0.03
102 °
Sun Valley, Monday, 17 August
Light rain. High 102°, low 76°.
Pressure30.03 inHg
Wind7.6 mph W
Humidity34%
Visibility—
Dew point63°
Tue, 1897° / 78°0
97 °
Sun Valley, Tuesday, 18 August
Overcast. High 97°, low 78°.
Pressure30.00 inHg
Wind8.9 mph W
Humidity44%
Visibility—
Dew point65°
Wed, 19103° / 77°0
103 °
Sun Valley, Wednesday, 19 August
Mostly clear. High 103°, low 77°.
Pressure29.88 inHg
Wind10.6 mph NW
Humidity31%
Visibility—
Dew point61°
Thu, 20100° / 79°0
100 °
Sun Valley, Thursday, 20 August
Clear. High 100°, low 79°.
Pressure29.83 inHg
Wind11.4 mph N
Humidity33%
Visibility—
Dew point63°
Fri, 2195° / 72°0
95 °
Sun Valley, Friday, 21 August
Light rain. High 95°, low 72°.
Pressure29.94 inHg
Wind5.5 mph NE
Humidity34%
Visibility—
Dew point59°
Sat, 22103° / 74°0.01
103 °
Sun Valley, Saturday, 22 August
Light rain. High 103°, low 74°.
Pressure29.94 inHg
Wind12.3 mph SE
Humidity34%
Visibility—
Dew point63°
Sun, 23102° / 74°0.11
102 °
Sun Valley, Sunday, 23 August
Light rain. High 102°, low 74°.
Pressure30.03 inHg
Wind8.9 mph S
Humidity36%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2489° / 71°0.1
89 °
Sun Valley, Monday, 24 August
Climate normal for this date — 60-year average.
Average high89°
Average low71°
Average precipitation0.1 in
Chance of precipitation32%
Record high99° (1983)
Record low58° (1997)
Tue, 2588° / 71°0.13
88 °
Sun Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.13 in
Chance of precipitation40%
Record high96° (2011)
Record low61° (1997)
Wed, 2689° / 71°0.09
89 °
Sun Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high89°
Average low71°
Average precipitation0.09 in
Chance of precipitation33%
Record high98° (2023)
Record low59° (2015)
Thu, 2789° / 71°0.1
89 °
Sun Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high89°
Average low71°
Average precipitation0.1 in
Chance of precipitation28%
Record high96° (1990)
Record low62° (1966)
Fri, 2888° / 71°0.12
88 °
Sun Valley, Friday, 28 August
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.12 in
Chance of precipitation43%
Record high100° (2000)
Record low65° (1968)
Sat, 2988° / 71°0.11
88 °
Sun Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.11 in
Chance of precipitation43%
Record high99° (1990)
Record low57° (1992)
Sun, 3087° / 71°0.14
87 °
Sun Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.14 in
Chance of precipitation48%
Record high96° (1995)
Record low57° (1992)
Mon, 3186° / 71°0.14
86 °
Sun Valley, Monday, 31 August
Climate normal for this date — 60-year average.
Average high86°
Average low71°
Average precipitation0.14 in
Chance of precipitation42%
Record high95° (1962)
Record low62° (1992)
Tue, 0187° / 70°0.11
87 °
Sun Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low70°
Average precipitation0.11 in
Chance of precipitation37%
Record high97° (1995)
Record low61° (1968)
Wed, 0287° / 71°0.1
87 °
Sun Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.1 in
Chance of precipitation30%
Record high96° (2011)
Record low61° (2017)
Thu, 0386° / 70°0.16
86 °
Sun Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.16 in
Chance of precipitation37%
Record high98° (1990)
Record low62° (2017)
Fri, 0486° / 69°0.14
86 °
Sun Valley, Friday, 4 September
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.14 in
Chance of precipitation32%
Record high99° (1990)
Record low56° (1974)
Sat, 0586° / 69°0.16
86 °
Sun Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.16 in
Chance of precipitation35%
Record high97° (1998)
Record low59° (1988)
Sun, 0685° / 69°0.09
85 °
Sun Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.09 in
Chance of precipitation38%
Record high98° (1990)
Record low57° (2011)
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 Sun Valley, 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 Sun Valley, 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.