Weather in Petersburg, MI
Updated 2026-09-26 11:15 local time · ZIP codes 49270
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
61°2% rain64°2% rain67°1% rain69°1% rain70°1% rain71°1% rain70°1% rain70°1% rain65°2% rain
60°3% rain58°3% rain56°3% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 3%).
It feels like 55°F with winds near 9 mph.
70°F, 1% rain chance and 8 mph wind.
Visibility is around 6 mi; gusts may reach 12 mph.
Current temperature is 61°F, wind 9 mph, rain chance up to 3%.
UV index is 3.
Local weather characteristics in Petersburg
Michigan weather is strongly influenced by the Great Lakes, which can moderate temperatures but also produce lake-effect clouds and heavy snow in favored areas.
Petersburg is part of the Midwest weather region. The forecast point is near 41.90°N latitude and 83.72°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Petersburg weather today
Sunny and 61°F in Petersburg, MI. Today's high is 71°F with a 4% rain chance. Winds are around 9 mph with gusts near 12 mph. Relative humidity is 53%, pressure is 30.22 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Petersburg
Sunrise is at 07:26 AM and sunset is at 07:25 PM. Tomorrow's forecast calls for Sunny with a high near 73°F and a low near 50°F. The maximum rain chance is 3%.