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
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°
| Time | Temp | Condition | Rain % | Wind | ||
|---|---|---|---|---|---|---|
| 4 AM☽ | 72°F | Showers And Thunderstorms | 88% | 5 mph SW | ||
| 5 AM☽ | 71°F | Showers And Thunderstorms | 78% | 5 mph SW | ||
| 6 AM☽ | 70°F | Showers And Thunderstorms | 87% | 5 mph SW | ||
| 7 AM☽ | 70°F | Showers And Thunderstorms Likely | 66% | 5 mph SW | ||
| 8 AM☽ | 69°F | Showers And Thunderstorms Likely | 68% | 5 mph SW | ||
| 9 AM☽ | 69°F | Rain Showers Likely | 73% | 5 mph SW | ||
| 10 AM | 69°F | Rain Showers Likely | 71% | 5 mph SW | ||
| 11 AM | 67°F | Rain Showers | 88% | 5 mph W | ||
| 12 PM | 69°F | Rain Showers Likely | 70% | 5 mph W | ||
| 1 PM | 69°F | Chance Rain Showers | 49% | 5 mph SW | ||
| 2 PM | 73°F | Chance Rain Showers | 43% | 5 mph W | ||
| 3 PM | 74°F | Showers And Thunderstorms Likely | 66% | 10 mph W | ||
| 4 PM | 76°F | Showers And Thunderstorms | 76% | 10 mph W | ||
| 5 PM | 78°F | Showers And Thunderstorms | 82% | 10 mph W | ||
| 6 PM | 79°F | Showers And Thunderstorms Likely | 68% | 10 mph W | ||
| 7 PM | 80°F | Showers And Thunderstorms Likely | 64% | 10 mph W | ||
| 8 PM | 81°F | Showers And Thunderstorms Likely | 67% | 5 mph W | ||
| 9 PM | 80°F | Showers And Thunderstorms Likely | 62% | 5 mph W | ||
| 10 PM☽ | 80°F | Showers And Thunderstorms | 83% | 5 mph W | ||
| 11 PM☽ | 79°F | Showers And Thunderstorms | 91% | 5 mph W | ||
| 12 AM☽ | 77°F | Showers And Thunderstorms Likely | 61% | 5 mph SW | ||
| 1 AM☽ | 75°F | Showers And Thunderstorms Likely | 61% | 0 mph | ||
| 2 AM☽ | 73°F | Showers And Thunderstorms Likely | 61% | 0 mph | ||
| 3 AM☽ | 72°F | Showers 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 PM
Excellent conditions for outdoor activities (comfortable temp, light wind, daylight)
4a10a4p10p
More for Johnson City, TN
- Will it rain tomorrow in Johnson City?
- What time will it rain tomorrow in Johnson City?
- Weather tomorrow by hour in Johnson City
- Heat index tomorrow by zip code near Johnson City
- Dew point tomorrow by zip code near Johnson City
- Wind chill tomorrow by zip code near Johnson City
- Snow forecast tomorrow by zip code near Johnson City
- What to wear tomorrow in Johnson City
- Best time to be outside tomorrow in Johnson City
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.