Monthly outlook for Sulphur Springs, TN: average high 92.4°, average low 71.3°. That is 5.4° above the climate normal for August. Precipitation is expected on 10 days (about 1.9 inches), against a normal of 7 days and 2.0 inches. The warmest day looks like 16 August (99.1°), the coolest 21 August (64.7°).
92.4°/71.3°
Average high / low
+5.4°
Above normal
10 / 7
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
93.2°
82.7°
+5.9°
19 August – 28 August
91°
82.6°
+4.7°
29 August – 7 September
at normal
80.8°
—
August records over 66 years
100.4°16 August 2007All-time high
52.5°14 August 2004All-time low
Climate normals and records are computed from the nearest reference point — Palmer (14 mi).
Mon, 1086° / 72°0.41
86 °
Sulphur Springs, Monday, 10 August
Rain. High 86°, low 72°.
Pressure30.15 inHg
Wind2 mph SW
Humidity83%
Visibility6.1 mi
Dew point75°
Tue, 1192° / 70°0.24
92 °
Sulphur Springs, Tuesday, 11 August
Rain. High 92°, low 70°.
Pressure30.09 inHg
Wind4.6 mph W
Humidity58%
Visibility6.2 mi
Dew point70°
Wed, 1294° / 71°0.09
94 °
Sulphur Springs, Wednesday, 12 August
Light rain. High 94°, low 71°.
Pressure29.97 inHg
Wind10.3 mph W
Humidity48%
Visibility6.2 mi
Dew point69°
Thu, 1392° / 71°0.1
92 °
Sulphur Springs, Thursday, 13 August
Light rain. High 92°, low 71°.
Pressure30.00 inHg
Wind6.4 mph W
Humidity52%
Visibility6.2 mi
Dew point69°
Fri, 1495° / 74°0
95 °
Sulphur Springs, Friday, 14 August
Overcast. High 95°, low 74°.
Pressure30.06 inHg
Wind7.4 mph W
Humidity43%
Visibility—
Dew point67°
Sat, 1598° / 77°0
98 °
Sulphur Springs, Saturday, 15 August
Overcast. High 98°, low 77°.
Pressure30.15 inHg
Wind7.2 mph NW
Humidity35%
Visibility—
Dew point63°
Sun, 1699° / 75°0
99 °
Sulphur Springs, Sunday, 16 August
Partly cloudy. High 99°, low 75°.
Pressure30.09 inHg
Wind8.1 mph W
Humidity34%
Visibility—
Dew point63°
Mon, 1797° / 77°0
97 °
Sulphur Springs, Monday, 17 August
Clear. High 97°, low 77°.
Pressure29.97 inHg
Wind9.1 mph NW
Humidity37%
Visibility—
Dew point64°
Tue, 1892° / 74°0.17
92 °
Sulphur Springs, Tuesday, 18 August
Rain. High 92°, low 74°.
Pressure29.94 inHg
Wind8.2 mph NW
Humidity50%
Visibility—
Dew point68°
Wed, 1988° / 73°0.04
88 °
Sulphur Springs, Wednesday, 19 August
Light rain. High 88°, low 73°.
Pressure29.88 inHg
Wind9.1 mph SW
Humidity71%
Visibility—
Dew point72°
Thu, 2091° / 69°0.08
91 °
Sulphur Springs, Thursday, 20 August
Light rain. High 91°, low 69°.
Pressure29.85 inHg
Wind11.3 mph NW
Humidity47%
Visibility—
Dew point66°
Fri, 2191° / 65°0
91 °
Sulphur Springs, Friday, 21 August
Clear. High 91°, low 65°.
Pressure29.91 inHg
Wind7.1 mph NW
Humidity31%
Visibility—
Dew point53°
Sat, 2295° / 67°0.55
95 °
Sulphur Springs, Saturday, 22 August
Heavy rain. High 95°, low 67°.
Pressure29.94 inHg
Wind11 mph SW
Humidity53%
Visibility—
Dew point69°
Sun, 2392° / 68°0.04
92 °
Sulphur Springs, Sunday, 23 August
Light rain. High 92°, low 68°.
Pressure30.00 inHg
Wind6.4 mph NW
Humidity49%
Visibility—
Dew point67°
Mon, 2489° / 67°0
89 °
Sulphur Springs, Monday, 24 August
Overcast. High 89°, low 67°.
Pressure30.06 inHg
Wind6.3 mph SE
Humidity54%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 66°0.11
82 °
Sulphur Springs, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.11 in
Chance of precipitation35%
Record high95° (2023)
Record low57° (2015)
Wed, 2682° / 66°0.17
82 °
Sulphur Springs, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.17 in
Chance of precipitation33%
Record high94° (2023)
Record low55° (2015)
Thu, 2783° / 67°0.11
83 °
Sulphur Springs, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.11 in
Chance of precipitation45%
Record high94° (2024)
Record low55° (2025)
Fri, 2882° / 66°0.09
82 °
Sulphur Springs, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.09 in
Chance of precipitation33%
Record high95° (2024)
Record low55° (1967)
Sat, 2982° / 66°0.11
82 °
Sulphur Springs, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.11 in
Chance of precipitation40%
Record high94° (2024)
Record low54° (1986)
Sun, 3082° / 66°0.12
82 °
Sulphur Springs, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.12 in
Chance of precipitation40%
Record high94° (2024)
Record low56° (1965)
Mon, 3181° / 66°0.11
81 °
Sulphur Springs, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.11 in
Chance of precipitation35%
Record high90° (1962)
Record low58° (2023)
Tue, 0181° / 66°0.15
81 °
Sulphur Springs, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.15 in
Chance of precipitation45%
Record high89° (1993)
Record low56° (1967)
Wed, 0281° / 66°0.11
81 °
Sulphur Springs, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.11 in
Chance of precipitation38%
Record high91° (2011)
Record low56° (1967)
Thu, 0381° / 65°0.15
81 °
Sulphur Springs, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.15 in
Chance of precipitation45%
Record high93° (2011)
Record low54° (2017)
Fri, 0480° / 65°0.15
80 °
Sulphur Springs, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.15 in
Chance of precipitation38%
Record high92° (2019)
Record low55° (1974)
Sat, 0580° / 64°0.15
80 °
Sulphur Springs, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.15 in
Chance of precipitation30%
Record high92° (1999)
Record low53° (1997)
Sun, 0680° / 64°0.1
80 °
Sulphur Springs, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.1 in
Chance of precipitation37%
Record high93° (1990)
Record low52° (1988)
Mon, 0780° / 64°0.19
80 °
Sulphur Springs, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.19 in
Chance of precipitation30%
Record high93° (1990)
Record low50° (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 Sulphur Springs, TN 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 Sulphur Springs, TN 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.