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Petersburg, Illinois, United States
40.0117°N, -89.8482°E
Wet-Bulb Temperature
-7.72°C
Air Temperature
-4.62°C
Relative Humidity
39.00%
Last Updated
Mar 16, 2026 21:36:28
Disclaimer: The wet-bulb temperatures shown are estimates calculated using the Stull formula. For more information about wet-bulb temperature calculations, visit Omni Calculator's Wet-Bulb Temperature Calculator.