Updated 2026-08-11 12:30 local time · ZIP codes 63548
Sunny
* WHAT...Heat index values up to 102 expected. * WHERE...Linn MO, Macon, Sullivan, and Adair Counties. * WHEN...From noon today to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
* WHAT...Heat index values of 100 to 105 expected. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...From noon today to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas. Thunderstorms and storm outflow may also interrupt the high heat at times.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
86°3% rain93°2% rain95°1% rain96°1% rain96°1% rain96°1% rain93°1% rain91°2% rain88°2% rain
85°2% rain82°3% rain80°4% rainRain chance stays relatively low over the next 12 hours (up to 4%).
It feels like 92°F with winds near 13 mph.
88°F, 2% rain chance and 11 mph wind.
Visibility is around 6 mi; gusts may reach 21 mph.
Current temperature is 86°F, wind 13 mph, rain chance up to 4%.
UV index is 2.
Sunny and 86°F in Lancaster, MO. Today's high is 96°F with a 4% rain chance. Winds are around 13 mph with gusts near 15 mph. Relative humidity is 70%, pressure is 29.90 inHg, and visibility is about 6 miles.
Sunrise is at 06:16 AM and sunset is at 08:13 PM. Tomorrow's forecast calls for Sunny with a high near 92°F and a low near 69°F. The maximum rain chance is 64%.
