Monthly outlook for Irwinton Shores, TN: average high 91.5°, average low 69.1°. That is 3.2° above the climate normal for August. Precipitation is expected on 9 days (about 1.9 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 16 August (99°), the coolest 21 August (62.9°).
91.5°/69.1°
Average high / low
+3.2°
Above normal
9 / 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
92.6°
85.7°
+3.8°
19 August – 28 August
89.6°
85.7°
+2.2°
29 August – 7 September
at normal
84°
—
August records over 66 years
103.3°16 August 2007All-time high
56.8°28 August 1967All-time low
Climate normals and records are computed from the nearest reference point — Spring City (12 mi).
Mon, 1084° / 69°0.23
84 °
Irwinton Shores, Monday, 10 August
Rain. High 84°, low 69°.
Pressure30.15 inHg
Wind4.3 mph SW
Humidity73%
Visibility6.2 mi
Dew point72°
Tue, 1193° / 68°0.04
93 °
Irwinton Shores, Tuesday, 11 August
Light rain. High 93°, low 68°.
Pressure30.09 inHg
Wind3.7 mph W
Humidity68%
Visibility6.2 mi
Dew point73°
Wed, 1294° / 69°0.17
94 °
Irwinton Shores, Wednesday, 12 August
Light rain. High 94°, low 69°.
Pressure29.97 inHg
Wind8.1 mph SW
Humidity54%
Visibility6.2 mi
Dew point70°
Thu, 1389° / 69°0.07
89 °
Irwinton Shores, Thursday, 13 August
Light rain. High 89°, low 69°.
Pressure30.03 inHg
Wind4.6 mph W
Humidity67%
Visibility6.2 mi
Dew point71°
Fri, 1496° / 72°0.03
96 °
Irwinton Shores, Friday, 14 August
Light rain. High 96°, low 72°.
Pressure30.03 inHg
Wind8.8 mph W
Humidity41%
Visibility—
Dew point66°
Sat, 1597° / 73°0.04
97 °
Irwinton Shores, Saturday, 15 August
Light rain. High 97°, low 73°.
Pressure30.12 inHg
Wind7.2 mph N
Humidity40%
Visibility—
Dew point66°
Sun, 1699° / 72°0.03
99 °
Irwinton Shores, Sunday, 16 August
Light rain. High 99°, low 72°.
Pressure30.06 inHg
Wind8.7 mph W
Humidity37%
Visibility—
Dew point64°
Mon, 1798° / 75°0
98 °
Irwinton Shores, Monday, 17 August
Partly cloudy. High 98°, low 75°.
Pressure29.94 inHg
Wind8.6 mph NW
Humidity36%
Visibility—
Dew point64°
Tue, 1893° / 71°0
93 °
Irwinton Shores, Tuesday, 18 August
Overcast. High 93°, low 71°.
Pressure29.91 inHg
Wind6.4 mph W
Humidity37%
Visibility—
Dew point60°
Wed, 1992° / 69°0.45
92 °
Irwinton Shores, Wednesday, 19 August
Rain. High 92°, low 69°.
Pressure29.88 inHg
Wind13.1 mph SW
Humidity58%
Visibility—
Dew point69°
Thu, 2089° / 68°0.3
89 °
Irwinton Shores, Thursday, 20 August
Rain. High 89°, low 68°.
Pressure29.83 inHg
Wind11.4 mph NW
Humidity48%
Visibility—
Dew point65°
Fri, 2187° / 63°0
87 °
Irwinton Shores, Friday, 21 August
Clear. High 87°, low 63°.
Pressure29.91 inHg
Wind2.9 mph S
Humidity42%
Visibility—
Dew point57°
Sat, 2294° / 64°0.33
94 °
Irwinton Shores, Saturday, 22 August
Rain. High 94°, low 64°.
Pressure29.97 inHg
Wind11.2 mph SW
Humidity65%
Visibility—
Dew point69°
Sun, 2390° / 68°0.03
90 °
Irwinton Shores, Sunday, 23 August
Light rain. High 90°, low 68°.
Pressure30.00 inHg
Wind8.2 mph N
Humidity49%
Visibility—
Dew point64°
Mon, 2485° / 64°0
85 °
Irwinton Shores, Monday, 24 August
Overcast. High 85°, low 64°.
Pressure30.06 inHg
Wind6.5 mph NE
Humidity56%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2586° / 70°0.1
86 °
Irwinton Shores, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.1 in
Chance of precipitation33%
Record high99° (2023)
Record low61° (2015)
Wed, 2685° / 70°0.14
85 °
Irwinton Shores, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low70°
Average precipitation0.14 in
Chance of precipitation30%
Record high96° (2023)
Record low60° (2015)
Thu, 2786° / 70°0.09
86 °
Irwinton Shores, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.09 in
Chance of precipitation33%
Record high93° (2024)
Record low59° (2025)
Fri, 2885° / 69°0.07
85 °
Irwinton Shores, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.07 in
Chance of precipitation33%
Record high96° (1990)
Record low57° (1967)
Sat, 2985° / 70°0.08
85 °
Irwinton Shores, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low70°
Average precipitation0.08 in
Chance of precipitation28%
Record high95° (2024)
Record low58° (1986)
Sun, 3085° / 69°0.11
85 °
Irwinton Shores, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.11 in
Chance of precipitation40%
Record high96° (2024)
Record low60° (1965)
Mon, 3184° / 69°0.12
84 °
Irwinton Shores, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.12 in
Chance of precipitation32%
Record high92° (1962)
Record low62° (1976)
Tue, 0184° / 69°0.15
84 °
Irwinton Shores, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.15 in
Chance of precipitation43%
Record high94° (1993)
Record low58° (1967)
Wed, 0284° / 69°0.11
84 °
Irwinton Shores, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.11 in
Chance of precipitation37%
Record high95° (2011)
Record low58° (1967)
Thu, 0384° / 69°0.13
84 °
Irwinton Shores, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.13 in
Chance of precipitation40%
Record high96° (2011)
Record low58° (2017)
Fri, 0483° / 68°0.12
83 °
Irwinton Shores, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.12 in
Chance of precipitation40%
Record high95° (2007)
Record low59° (1997)
Sat, 0583° / 68°0.15
83 °
Irwinton Shores, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.15 in
Chance of precipitation40%
Record high95° (2007)
Record low57° (1997)
Sun, 0683° / 67°0.09
83 °
Irwinton Shores, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high94° (1998)
Record low58° (1988)
Mon, 0783° / 67°0.13
83 °
Irwinton Shores, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.13 in
Chance of precipitation25%
Record high96° (1990)
Record low52° (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 Irwinton Shores, 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 Irwinton Shores, 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.