Petersburg, MN Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Petersburg, MN in one place.
Showers and thunderstorms likely before 8am, then a slight chance of showers and thunderstorms between 8am and 10am. Mostly sunny, with a high near 86. South wind 10 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for Petersburg, MN 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: Aug 28, 2026 4:12 AM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Petersburg, MN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 4:12 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Petersburg
Sunday looks like the warmest upcoming period in Petersburg at 88 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Saturday at about 10 to 25 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 4:12 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KFSD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 71. South wind around 10 mph.
A slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 88. South wind around 10 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 71.
A slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 85.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 66.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
A chance of rain showers before 7am. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Showers And Thunderstorms Likely then Mostly Sunny
|
86°F |
10 to 25 mph
S
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
71°F |
10 mph
S
|
|
Sunday
Aug 30
|
Slight Chance Showers And Thunderstorms
|
88°F |
10 mph
S
|
|
Sunday Night
Aug 30
|
Partly Cloudy
|
71°F |
5 to 10 mph
SSW
|
|
Monday
Aug 31
|
Slight Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
WSW
|
|
Monday Night
Aug 31
|
Partly Cloudy then Slight Chance Rain Showers
|
66°F |
5 mph
NNW
|
|
Tuesday
Sep 1
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
83°F |
0 to 5 mph
S
|
|
Tuesday Night
Sep 1
|
Chance Showers And Thunderstorms
|
64°F |
5 mph
E
|
|
Wednesday
Sep 2
|
Chance Rain Showers then Mostly Sunny
|
85°F |
5 mph
ESE
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms
|
67°F |
5 mph
SSE
|
|
Thursday
Sep 3
|
Chance Showers And Thunderstorms
|
86°F |
5 to 10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Petersburg.