10-day forecast for Johnson City, TN: 64° to 91°, with precipitation expected on 9 days. The table below breaks each day into morning, afternoon, evening and overnight.
86°
Best day: Tuesday, August 18
91° · 1.5 in
Worst day: Wednesday, August 12
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1083° / 69°0.09
Morning71°feels 72°
Afternoon81°feels 85°
Evening75°feels 76°
Overnight70°feels 71°
83 °
Johnson City, Monday, 10 August
Light rain. High 83°, low 69°.
Pressure30.15 inHg
Wind6.1 mph W
Humidity63%
Visibility6.2 mi
Dew point67°
Tue, 1187° / 67°0.05
Morning70°feels 71°
Afternoon84°feels 88°
Evening78°feels 79°
Overnight73°feels 74°
87 °
Johnson City, Tuesday, 11 August
Light rain. High 87°, low 67°.
Pressure30.09 inHg
Wind5.7 mph W
Humidity66%
Visibility6.2 mi
Dew point69°
Wed, 1291° / 64°1.5
Morning71°feels 72°
Afternoon87°feels 93°
Evening65°feels 66°
Overnight69°feels 70°
91 °
Johnson City, Wednesday, 12 August
Heavy rain. High 91°, low 64°.
Pressure29.97 inHg
Wind10.7 mph W
Humidity62%
Visibility6.2 mi
Dew point69°
Thu, 1384° / 64°0.31
Morning68°feels 69°
Afternoon82°feels 87°
Evening75°feels 76°
Overnight64°feels 65°
84 °
Johnson City, Thursday, 13 August
Rain. High 84°, low 64°.
Pressure30.03 inHg
Wind9.6 mph W
Humidity70%
Visibility6.2 mi
Dew point70°
Fri, 1482° / 69°0.83
Morning72°feels 73°
Afternoon73°feels 74°
Evening75°feels 76°
Overnight71°feels 73°
82 °
Johnson City, Friday, 14 August
Rain. High 82°, low 69°.
Pressure30.12 inHg
Wind6.1 mph W
Humidity97%
Visibility—
Dew point71°
Sat, 1582° / 69°0.45
Morning74°feels 76°
Afternoon80°feels 85°
Evening73°feels 74°
Overnight70°feels 71°
82 °
Johnson City, Saturday, 15 August
Rain. High 82°, low 69°.
Pressure30.18 inHg
Wind4.4 mph E
Humidity75%
Visibility—
Dew point71°
Sun, 1688° / 67°0.08
Morning74°feels 77°
Afternoon85°feels 93°
Evening79°feels 83°
Overnight74°feels 75°
88 °
Johnson City, Sunday, 16 August
Light rain. High 88°, low 67°.
Pressure30.12 inHg
Wind7.3 mph SW
Humidity69%
Visibility—
Dew point72°
Mon, 1786° / 71°0.61
Morning76°feels 79°
Afternoon85°feels 91°
Evening75°feels 77°
Overnight71°feels 72°
86 °
Johnson City, Monday, 17 August
Rain. High 86°, low 71°.
Pressure29.97 inHg
Wind11.1 mph W
Humidity65%
Visibility—
Dew point71°
Tue, 1886° / 64°0
Morning72°feels 73°
Afternoon82°feels 84°
Evening75°feels 76°
Overnight70°feels 71°
86 °
Johnson City, Tuesday, 18 August
Partly cloudy. High 86°, low 64°.
Pressure29.97 inHg
Wind9.1 mph W
Humidity57%
Visibility—
Dew point64°
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 Johnson City, 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.