Weather Tomorrow

Weather Tomorrow in Johnson City, TN

Flood WatchUntil Jul 10, 6:00 PM

Flood Watch issued July 10 at 12:45AM EDT until July 12 at 8:00PM EDT by NWS Morristown TN

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Saturday, July 11, 2026

81°Low 67°FColdHot
Thunderstorms

Precip chance

91%

Wind

0-10 mph

Humidity

87%

Feels like

79–69°F

Rain forecast

Rain likely starts around 4 AM and may continue until 3 AM. Peak chance: 91% around 11 PM.

Data source: National Weather Service (NOAA) · Updated 55 min ago

Tomorrow by Hour

67°Temperature trend81°
TimeTempConditionRain %Wind
4 AM72°FShowers And Thunderstorms
88%
5 mph SW
5 AM71°FShowers And Thunderstorms
78%
5 mph SW
6 AM70°FShowers And Thunderstorms
87%
5 mph SW
7 AM70°FShowers And Thunderstorms Likely
66%
5 mph SW
8 AM69°FShowers And Thunderstorms Likely
68%
5 mph SW
9 AM69°FRain Showers Likely
73%
5 mph SW
10 AM69°FRain Showers Likely
71%
5 mph SW
11 AM67°FRain Showers
88%
5 mph W
12 PM69°FRain Showers Likely
70%
5 mph W
1 PM69°FChance Rain Showers
49%
5 mph SW
2 PM73°FChance Rain Showers
43%
5 mph W
3 PM74°FShowers And Thunderstorms Likely
66%
10 mph W
4 PM76°FShowers And Thunderstorms
76%
10 mph W
5 PM78°FShowers And Thunderstorms
82%
10 mph W
6 PM79°FShowers And Thunderstorms Likely
68%
10 mph W
7 PM80°FShowers And Thunderstorms Likely
64%
10 mph W
8 PM81°FShowers And Thunderstorms Likely
67%
5 mph W
9 PM80°FShowers And Thunderstorms Likely
62%
5 mph W
10 PM80°FShowers And Thunderstorms
83%
5 mph W
11 PM79°FShowers And Thunderstorms
91%
5 mph W
12 AM77°FShowers And Thunderstorms Likely
61%
5 mph SW
1 AM75°FShowers And Thunderstorms Likely
61%
0 mph
2 AM73°FShowers And Thunderstorms Likely
61%
0 mph
3 AM72°FShowers And Thunderstorms Likely
61%
0 mph

Precipitation Timeline

100%
50%
91%
4a10a4p10p
<20%20-50%50-70%>70%

What to Wear Tomorrow

Hot — wear breathable, light clothing

Clothing

  • Light t-shirt or tank top
  • Shorts or light skirt
  • Hat for sun protection

Footwear

Sandals or breathable sneakers

Accessories

  • Umbrella
  • Sunscreen

Conditions

High: 81°F

Low: 67°F

Wind: 0-10 mph

Rain: 91%

Rain expected around 4 AM — carry an umbrella.

Best Time to Be Outside Tomorrow

1 PM – 2 PM84

Excellent conditions for outdoor activities (comfortable temp, light wind, daylight)

4a10a4p10p

More for Johnson City, TN

Forecast by ZIP in Johnson City

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Frequently Asked Questions

What is the weather forecast for tomorrow in Johnson City, TN?
Tomorrow in Johnson City: High of 81°F, Low of 67°F. Thunderstorms with 91% chance of precipitation. Wind 0-10 mph.
Will it rain tomorrow in Johnson City?
Rain likely starts around 4 AM and may continue until 3 AM. Peak chance: 91% around 11 PM.
What should I wear tomorrow in Johnson City?
With a high of 81°F and low of 67°F, check our "What to Wear" section above for specific clothing recommendations based on temperature, wind, and precipitation.
How accurate is this forecast?
Our forecasts come directly from the National Weather Service (NOAA), which provides some of the most accurate weather predictions available. Tomorrow forecasts are generally 80-90% accurate, with accuracy decreasing the further out you look. Data is refreshed every 30 minutes.