7-Day Forecast 38.47°N 87.29°W (Text-Only)
NWS Forecast for: Petersburg IN
Issued by: National Weather Service Paducah, KY
Last Update: 1:36 pm EDT Sep 5, 2026




This Afternoon: A 40 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 99. Heat index values as high as 107. West northwest wind 3 to 5 mph.

Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 71. Light and variable wind becoming northeast around 5 mph after midnight. Chance of precipitation is 30%.

Sunday: Partly sunny, then gradually becoming sunny, with a high near 88. Northeast wind 7 to 10 mph.

Sunday Night: Mostly clear, with a low around 63. East northeast wind 5 to 9 mph.

Labor Day: Sunny, with a high near 89. East northeast wind 3 to 6 mph.

Monday Night: Mostly clear, with a low around 66. East northeast wind 3 to 5 mph.

Tuesday: Sunny, with a high near 94. South southwest wind 3 to 6 mph.

Tuesday Night: Mostly clear, with a low around 73. South wind 3 to 7 mph.

Wednesday: Sunny and hot, with a high near 98. South southwest wind 8 to 11 mph.

Wednesday Night: A chance of showers and thunderstorms, mainly after 2am. Mostly clear, with a low around 71. South southwest wind 5 to 8 mph.

Thursday: A chance of showers. Mostly sunny, with a high near 90. Calm wind becoming northwest around 6 mph in the afternoon.

Thursday Night: A slight chance of showers. Partly cloudy, with a low around 64. North wind around 5 mph becoming calm in the evening.

Friday: Sunny, with a high near 88. Calm wind becoming east southeast around 5 mph in the afternoon.



Petersburg IN
 38.47°N 87.29°W

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