textproduct: Topeka

KEY MESSAGES

- Heat Advisory issued today and tomorrow, except for counties along the Nebraska border. Temperatures around 100, heat indices around 105.

- Staying mostly dry through the week. A few low chances for showers, mainly towards the Nebraska border.

DISCUSSION

Issued at 153 PM CDT Sun Aug 30 2026

Another hot afternoon across the area, with an upper high sitting to our south over Oklahoma. A few showers are still lingering just northwest of Republic County, keeping a few clouds around there, but elsewhere it is just hot and windy. Dewpoints are running a degree or two yesterday's values, and temperatures several degrees above. This should take temperatures around or above 100 with another hour or two of heating. As most places saw heat index values in the 102 to 105 range yesterday, more confident that most places will see heat indices around or above 105 today. So have gone ahead and issued a Heat Advisory for the entire area today and tomorrow, with the exception of counties along the Nebraska border where cloud cover may keep temperatures a few degrees cooler. Tuesday through the rest of the week, the upper high moves a bit farther east but stays the dominant feature across eastern KS. Confidence is high in continued high temperatures in the upper 90s through Friday, with heat indices around or above 100 each day. So may an extension of the Heat Advisory, particularly if dewpoints can creep up a few degrees by mid-week. As mentioned yesterday, persistent southerly winds will be a double-edged sword, slightly improving the feel of the air but also not allowing temperatures to fall as much overnight. Low temperatures will continue to be in the upper 70s each day.

Aside from the heat, the only thing to watch over the next week will be some very low rain chances, mainly over far north-central KS. Similar to this morning, a weak boundary will stretch from northwest Kansas into south-central Nebraska tonight. As the nocturnal LLJ restrengthens, a few more showers and weak thunderstorms should develop to our west near the boundary. These may move into Republic County and nearby areas for a few hours tomorrow morning. While the boundary should move off a bit to the northwest Tuesday and Wednesday, by Thursday and Friday mornings it may move back close enough to allow for some more isolated AM convection. Regardless, expecting any rainfall that does occur through the week to stay very light, and mainly confined to the Nebraska border.

AVIATION /18Z TAFS THROUGH 18Z MONDAY/

Issued at 1203 PM CDT Sun Aug 30 2026

VFR conditions with persistent southerly winds will continue through the period. Winds will be around 15 kts with gusts to around 25 kts through the afternoon before weakening to around 10 kts overnight. However similar to last night, we should keep enough winds around overnight with a mixed boundary layer to preclude any LLWS.

CLIMATE

Issued at 156 PM CDT Sun Aug 30 2026

Record highest minimum temperature information:

Record Forecast

August 31 Topeka 77, set in 1912 and 1947 79 Concordia 81, set in 1947 77

September 1 Topeka 81, set in 2011 78 Concordia 80, set in 1913 77

September 2 Topeka 80, set in 2011 79 Concordia 79, set in 1929 78

September 3 Topeka 77, set in 1939 78 Concordia 80, set in 1947 78

TOP WATCHES/WARNINGS/ADVISORIES

Heat Advisory until 7 PM CDT Monday for KSZ020-KSZ021-KSZ022-KSZ023- KSZ024-KSZ026-KSZ034-KSZ035-KSZ036-KSZ037-KSZ038-KSZ039-KSZ040- KSZ054-KSZ055-KSZ056-KSZ058-KSZ059.