10-day forecast for Old Washington, TN: 70° to 99°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
99°
Best day: Sunday, August 16
86° · 0.19 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1090° / 72°0.05
Morning73°feels 75°
Afternoon89°feels 90°
Evening79°feels 80°
Overnight72°feels 74°
90 °
Old Washington, Monday, 10 August
Light rain. High 90°, low 72°.
Pressure30.12 inHg
Wind3.1 mph SW
Humidity58%
Visibility6.2 mi
Dew point70°
Tue, 1196° / 71°0.01
Morning73°feels 74°
Afternoon93°feels 97°
Evening82°feels 87°
Overnight72°feels 73°
96 °
Old Washington, Tuesday, 11 August
Light rain. High 96°, low 71°.
Pressure30.06 inHg
Wind4 mph SW
Humidity55%
Visibility6.2 mi
Dew point70°
Wed, 1295° / 70°0.02
Morning73°feels 74°
Afternoon95°feels 100°
Evening84°feels 89°
Overnight73°feels 74°
95 °
Old Washington, Wednesday, 12 August
Light rain. High 95°, low 70°.
Pressure29.94 inHg
Wind7.8 mph W
Humidity48%
Visibility6.2 mi
Dew point68°
Thu, 1392° / 71°0.21
Morning78°feels 80°
Afternoon90°feels 96°
Evening80°feels 84°
Overnight72°feels 74°
92 °
Old Washington, Thursday, 13 August
Light rain. High 92°, low 71°.
Pressure29.94 inHg
Wind7.8 mph W
Humidity50%
Visibility—
Dew point68°
Fri, 1497° / 73°0.08
Morning80°feels 83°
Afternoon94°feels 101°
Evening83°feels 90°
Overnight76°feels 77°
97 °
Old Washington, Friday, 14 August
Light rain. High 97°, low 73°.
Pressure30.03 inHg
Wind10.1 mph W
Humidity41%
Visibility—
Dew point66°
Sat, 1592° / 72°0.17
Morning78°feels 82°
Afternoon89°feels 97°
Evening79°feels 79°
Overnight74°feels 76°
92 °
Old Washington, Saturday, 15 August
Light rain. High 92°, low 72°.
Pressure30.12 inHg
Wind4.6 mph NE
Humidity56%
Visibility—
Dew point71°
Sun, 1699° / 71°0
Morning80°feels 83°
Afternoon97°feels 102°
Evening85°feels 93°
Overnight79°feels 82°
99 °
Old Washington, Sunday, 16 August
Partly cloudy. High 99°, low 71°.
Pressure30.06 inHg
Wind9.2 mph NW
Humidity34%
Visibility—
Dew point63°
Mon, 1796° / 76°0
Morning82°feels 85°
Afternoon94°feels 101°
Evening83°feels 88°
Overnight76°feels 78°
96 °
Old Washington, Monday, 17 August
Overcast. High 96°, low 76°.
Pressure29.97 inHg
Wind10.1 mph NW
Humidity43%
Visibility—
Dew point68°
Tue, 1892° / 70°0
Morning77°feels 78°
Afternoon89°feels 90°
Evening78°feels 78°
Overnight72°feels 73°
92 °
Old Washington, Tuesday, 18 August
Partly cloudy. High 92°, low 70°.
Pressure29.97 inHg
Wind5 mph NE
Humidity41%
Visibility—
Dew point61°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Old Washington, TN around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.