Johnstown, TN Weather Forecast
Local 7-day forecast
Areas Of Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Johnstown, TN in one place.
Areas of fog. Mostly clear, with a low around 41. Wind around 0 mph.
Local Weather Overview
This forecast page for Johnstown, TN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 6, 2026 1:53 AM CST.
The active forecast window currently covers Nov 6 to Nov 12, 2026 for Johnstown, TN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 1:53 AM CST
- Forecast office
- OHX
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnstown
Monday looks like the warmest upcoming period in Johnstown at 67 degrees F.
Saturday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Friday at about 0 to 10 mph NNW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 6, 2026 1:53 AM CST
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- OHX
- Radar station
- KHTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy fog before 7am. Mostly sunny, with a high near 64. North northwest wind 0 to 10 mph, with gusts as high as 20 mph.
Patchy frost after 5am. Mostly cloudy, with a low around 37. North wind 5 to 10 mph, with gusts as high as 20 mph.
Patchy frost before 7am. Sunny, with a high near 58. North wind 5 to 10 mph.
Areas of frost between midnight and 5am, then widespread frost and patchy fog. Mostly clear, with a low around 32. North northeast wind 0 to 5 mph.
Areas of frost and patchy fog before 8am. Sunny, with a high near 62.
Areas of fog after 8pm. Clear, with a low around 32.
Areas of fog before 8am. Sunny, with a high near 67.
Mostly clear, with a low around 35.
Mostly sunny, with a high near 67.
Partly cloudy, with a low around 37.
Sunny, with a high near 65.
Partly cloudy, with a low around 38.
A slight chance of rain showers after noon. Mostly sunny, with a high near 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Nov 6
|
Areas Of Fog
|
41°F |
0 mph
|
|
Friday
Nov 6
|
Patchy Fog then Mostly Sunny
|
64°F |
0 to 10 mph
NNW
|
|
Friday Night
Nov 6
|
Mostly Cloudy then Patchy Frost
|
37°F |
5 to 10 mph
N
|
|
Saturday
Nov 7
|
Patchy Frost then Sunny
|
58°F |
5 to 10 mph
N
|
|
Saturday Night
Nov 7
|
Mostly Clear then Widespread Frost
|
32°F |
0 to 5 mph
NNE
|
|
Sunday
Nov 8
|
Areas Of Frost then Sunny
|
62°F |
0 to 5 mph
N
|
|
Sunday Night
Nov 8
|
Areas Of Fog
|
32°F |
0 mph
|
|
Monday
Nov 9
|
Areas Of Fog then Sunny
|
67°F |
0 to 5 mph
NNW
|
|
Monday Night
Nov 9
|
Mostly Clear
|
35°F |
0 mph
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
67°F |
0 to 5 mph
W
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
37°F |
0 mph
|
|
Veterans Day
Nov 11
|
Sunny
|
65°F |
0 to 5 mph
WNW
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
38°F |
0 mph
|
|
Thursday
Nov 12
|
Mostly Sunny then Slight Chance Rain Showers
|
63°F |
0 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnstown.