Overview Realtime Historical Map View
Heat Advisory
2026-09-06T19:00:00-05:00

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 106. For the Heat Advisory, heat index values up to 101 expected. * WHERE...Boone MO, Callaway MO, Cole MO, Moniteau MO, Osage MO, Crawford MO, Gasconade MO, and Reynolds MO Counties. * WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening. For the Heat Advisory, from 8 PM this evening to 7 PM CDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

Meramec River Near Sullivan, Mo Realtime Data


       

Seasonal Comparison


Oceanic Nino Index