Johnson City Weather Forecast 15 Days, Weather in Johnson City Today

Current weather conditions and 15 day weather forecast for Johnson City, Tennessee, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.

Current weather conditions at Johnson City

20 December 2025 Saturday
0.2 ° C / 32.4°F
Clear
Clear
Feels Like : -1.4 ° C / 29.5°F
Humidity : % 74
Pressure : 1020 mb
Wind Speed : 5 kmph / 3.1 miles from WW
Visibility : 16 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 0

15 day weather forecast for Johnson City, TN, USA

Weather Forecast for next 15 Days for Johnson City including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.
Here is weather for the next 15 days in Johnson City, Tennessee state, US. To see the daily forecast, scroll to the table below.
Date Weather forecast Low temperature High temperature Avg. temperature Humidity Chance of rain UV Index Sun Position Moon Position
19 December 2025 Friday Moderate rain Moderate rain -0.9 ° C
(30.4°F)
9 ° C
(48.2°F)
5.2 ° C
(41.3°F)
% 73 86% 0.4 Sunrise:07:36 AM
Sunset: 05:17 PM
Moonrise:07:32 AM
Moonset: 04:44 PM
Moon Phase
( New Moon )
20 December 2025 Saturday Sunny Sunny -1 ° C
(30.2°F)
16.8 ° C
(62.2°F)
5.9 ° C
(42.6°F)
% 50 0% 0.5 Sunrise:07:37 AM
Sunset: 05:18 PM
Moonrise:08:24 AM
Moonset: 05:40 PM
Moon Phase
( New Moon )
21 December 2025 Sunday Overcast  Overcast 1.7 ° C
(35.1°F)
10.1 ° C
(50.2°F)
4.9 ° C
(40.9°F)
% 57 0% 0.5 Sunrise:07:37 AM
Sunset: 05:18 PM
Moonrise:09:10 AM
Moonset: 06:40 PM
Moon Phase
( Waxing Crescent )
22 December 2025 Monday Patchy rain nearby Patchy rain nearby -0.2 ° C
(31.6°F)
10.9 ° C
(51.6°F)
4.1 ° C
(39.3°F)
% 36 85% 0.5 Sunrise:07:38 AM
Sunset: 05:19 PM
Moonrise:09:49 AM
Moonset: 07:43 PM
Moon Phase
( Waxing Crescent )
23 December 2025 Tuesday Moderate rain Moderate rain 2.9 ° C
(37.2°F)
7.9 ° C
(46.2°F)
5.8 ° C
(42.5°F)
% 82 88% 0.1 Sunrise:07:38 AM
Sunset: 05:20 PM
Moonrise:10:22 AM
Moonset: 08:46 PM
Moon Phase
( Waxing Crescent )
24 December 2025 Wednesday Patchy rain nearby Patchy rain nearby 7.8 ° C
(46°F)
12.8 ° C
(55.1°F)
9.4 ° C
(48.9°F)
% 97 88% 0 Sunrise:07:39 AM
Sunset: 05:20 PM
Moonrise:10:51 AM
Moonset: 09:50 PM
Moon Phase
( Waxing Crescent )
25 December 2025 Thursday Patchy rain nearby Patchy rain nearby 10.6 ° C
(51.1°F)
16.2 ° C
(61.1°F)
12.7 ° C
(54.8°F)
% 91 89% 3 Sunrise:07:39 AM
Sunset: 05:21 PM
Moonrise:11:18 AM
Moonset: 10:54 PM
Moon Phase
( Waxing Crescent )
26 December 2025 Friday Patchy rain nearby Patchy rain nearby 9.7 ° C
(49.5°F)
18.4 ° C
(65.1°F)
13.6 ° C
(56.6°F)
% 85 85% 3 Sunrise:07:40 AM
Sunset: 05:21 PM
Moonrise:11:43 AM
Moonset: 11:58 PM
Moon Phase
( Waxing Crescent )
27 December 2025 Saturday Patchy rain nearby Patchy rain nearby 13.3 ° C
(55.9°F)
18 ° C
(64.4°F)
15.2 ° C
(59.4°F)
% 90 88% 4 Sunrise:07:40 AM
Sunset: 05:22 PM
Moonrise:12:08 PM
Moonset: No moonset
Moon Phase
( First Quarter )
28 December 2025 Sunday Patchy rain nearby Patchy rain nearby 13.6 ° C
(56.4°F)
16.5 ° C
(61.8°F)
14.8 ° C
(58.7°F)
% 89 89% 3 Sunrise:07:40 AM
Sunset: 05:23 PM
Moonrise:12:35 PM
Moonset: 01:05 AM
Moon Phase
( Waxing Gibbous )
29 December 2025 Monday Patchy rain nearby Patchy rain nearby 12.3 ° C
(54.2°F)
18.9 ° C
(66.1°F)
14.9 ° C
(58.9°F)
% 87 83% 3 Sunrise:07:41 AM
Sunset: 05:23 PM
Moonrise:01:06 PM
Moonset: 02:14 AM
Moon Phase
( Waxing Gibbous )
30 December 2025 Tuesday Patchy rain nearby Patchy rain nearby 11.2 ° C
(52.2°F)
17.6 ° C
(63.6°F)
13.5 ° C
(56.3°F)
% 82 83% 3 Sunrise:07:41 AM
Sunset: 05:24 PM
Moonrise:01:43 PM
Moonset: 03:28 AM
Moon Phase
( Waxing Gibbous )
31 December 2025 Wednesday Patchy rain nearby Patchy rain nearby 4.4 ° C
(39.9°F)
14 ° C
(57.1°F)
11.1 ° C
(51.9°F)
% 86 88% 3 Sunrise:07:41 AM
Sunset: 05:25 PM
Moonrise:02:28 PM
Moonset: 04:44 AM
Moon Phase
( Waxing Gibbous )
01 January 2026 Thursday Patchy rain nearby Patchy rain nearby -0.7 ° C
(30.8°F)
4.3 ° C
(39.7°F)
2.2 ° C
(36°F)
% 78 79% 1 Sunrise:07:41 AM
Sunset: 05:26 PM
Moonrise:03:25 PM
Moonset: 06:00 AM
Moon Phase
( Waxing Gibbous )
Johnson City Weather forecasts are usually fully updated every 4 hours.
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