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Nearest monitored road: West Chestnut Expressway (Primary)
- a heat advisory is in effect for the entire area through saturday. Highs in the 90S to near 100 with heat index values of around 100 to 105 can be expected. Overnight lows will only drop into the 70S. Several daily records may be tied or broken. - isolated to scattered showers and thunderstorms will occur mainly east of highway 65 this afternoon and again on thursday afternoon.
Issued at 240 PM CDT wed sep 16 2026
The upper level ridge of high pressure remains over the area along with the hot air mass early this afternoon. The ridge and hot conditions will remain over the area through the rest of the week. Highs will continue to warm into the middle 90S to near 100 today and again on thursday. Lows will only cool into the 70S. There will be the potential for some record high temperatures this week, please see the climate section below for more record temperature information from around the area. Heat index values around 100 to 105 will also occur today through the rest of the week into the weekend. A heat advisory is in effect areawide today through saturday.
Scattered showers and isolated storms have developed across portions of the eastern missouri ozarks this afternoon as instability has increased and the cap has weakened with the heating of the day. This scattered activity will continue to develop and slowly move east this afternoon dissipating early this evening, mainly occurring east of highway 65. Deep layer SHEAR is weak with the upper level high over the region. Mlcape values of 1500-2500 j/kg are in place east of highway 65. This activity is/will continue to be pulse in nature. Precipitable water values are around 1.75-2" and storm motions are slow, so heavy downpours can be expected with these showers and storms but will be brief for any given location and very localized as this activity is not widespread. The severe risk is overall low but a strong storm or two with wind gusts up to 40 to 50 MPH could be possible, but lightning and heavy downpours will be the risk with most of the storms that are able to develop today.
Isolated pulse type showers and storms will once again be possible on thursday afternoon/early evening. Coverage should be less tomorrow than what is occurring today; therefore, most locations will likely remain dry on thursday.
Issued at 240 PM CDT wed sep 16 2026
The upper level ridge will remain over the area friday into the weekend before starting to flatten some later this week. Highs will continue to warm into the middle 90S to near 100 degrees again friday and saturday, and possible again on sunday, especially across the southern portions of the area. A slightly drier air mass will start to move into the area late week, so dew points may be slightly lower, but heat index values around 100 degrees are expected through at least saturday. A heat advisory is in effect for the entire area through 8 PM saturday.
An upper level trough will move south into the plains late this weekend then will move northeast into the great lakes region early next week. The trough will flatten the ridge some and send a front south into the area later saturday into sunday. Shower and storm chances (30-70%) will occur saturday evening into sunday with the best chances across the northern portions of the area closer to the upper level trough. With the upper level support remaining more to the north, rainfall amounts will likely decrease to the southeast and not all locations could be impacted by rain--especailly further south.
A cooler air mass will move into portions of the area late this weekend into early next week. Highs are expected to range from around 80 across the north portions of the area to around 90 across southern missouri early next week as the upper level trough and cooler temps remain north of the area.
Issued at 1235 PM CDT wed sep 16 2026
Scattered showers and a few storms are developing across the eastern missouri ozarks early this afternoon. This activity will continue to develop and move east into early this evening remaining mainly east of highway 65. There is a low chance for the ksgf and kbbg sites to be impacted.
Southwesterly winds will continue this afternoon becoming southeasterly this evening and tonight. Outside any storm/shower VFR conditions are expected across the area through the taf period.
Issued at 235 PM CDT wed sep 16 2026
Record high temperatures:
September 16: ksgf: 95/1980 kjln: 98/1954 kvih: 96/1954 kuno: 99/1980
September 17: ksgf: 96/1953 kjln: 95/1953 kvih: 97/1953 kuno: 97/1953
September 18: ksgf: 95/2019 kjln: 97/2022 kvih: 95/1953 kuno: 96/1972
September 19: ksgf: 96/1954 kjln: 99/2024 kuno: 97/1954
September 20: ksgf: 97/1954 kvih: 95/1954 kuno: 97/1954
September 21: kuno: 95/1955
Record high minimum temperatures:
September 16: ksgf: 73/1927
September 17: ksgf: 73/1978
September 18: ksgf: 74/1931
September 19: ksgf: 73/1931
September 20: ksgf: 74/2018
September 21: ksgf: 73/1931
September 22: ksgf: 70/2017