Petersburg, TN Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Petersburg, TN in one place.
Sunny, with a high near 70. East wind 0 to 5 mph.
Local Weather Overview
This forecast page for Petersburg, 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: Oct 23, 2026 5:00 PM EDT.
The active forecast window currently covers Oct 24 to Oct 29, 2026 for Petersburg, TN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 24 to Oct 29, 2026
- Latest sync
- Oct 23, 2026 5:00 PM EDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Petersburg
Tuesday looks like the warmest upcoming period in Petersburg at 73 degrees F.
Sunday Night is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Saturday at about 0 to 5 mph E.
The forecast from Oct 24 through Oct 29 stays mostly dry.
Forecast Details
- Last updated
- Oct 23, 2026 5:00 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- MRX
- Radar station
- KMRX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 43. East wind 0 to 5 mph.
Sunny, with a high near 71. East wind 0 to 5 mph.
Clear, with a low around 40. East wind 0 to 5 mph.
Sunny, with a high near 71. North wind around 0 mph.
Mostly clear, with a low around 44.
Sunny, with a high near 73.
Partly cloudy, with a low around 48.
Partly sunny, with a high near 72.
Partly cloudy, with a low around 47.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Oct 24
|
Sunny
|
70°F |
0 to 5 mph
E
|
|
Saturday Night
Oct 24
|
Mostly Clear
|
43°F |
0 to 5 mph
E
|
|
Sunday
Oct 25
|
Sunny
|
71°F |
0 to 5 mph
E
|
|
Sunday Night
Oct 25
|
Clear
|
40°F |
0 to 5 mph
E
|
|
Monday
Oct 26
|
Sunny
|
71°F |
0 mph
|
|
Monday Night
Oct 26
|
Mostly Clear
|
44°F |
0 mph
|
|
Tuesday
Oct 27
|
Sunny
|
73°F |
0 mph
|
|
Tuesday Night
Oct 27
|
Partly Cloudy
|
48°F |
0 mph
|
|
Wednesday
Oct 28
|
Partly Sunny
|
72°F |
0 mph
|
|
Wednesday Night
Oct 28
|
Partly Cloudy
|
47°F |
0 mph
|
|
Thursday
Oct 29
|
Mostly Sunny
|
73°F |
0 mph
|
|
Thursday Night
Oct 29
|
Mostly Clear
|
47°F |
0 mph
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Petersburg.
