textproduct: Norman

KEY MESSAGES

Updated at 543 PM CDT Sun Jun 28 2026

- Heat Advisory remains in effect until 8 PM for portions of northwest and north-central Oklahoma.

- Low chances of thunderstorms across far western Oklahoma during the evening hours through mid-week; strong winds possible.

- Near-record warm low temperatures possible for many locations this week.

NEAR TERM

(Rest of today and tonight) Issued at 138 PM CDT Sun Jun 28 2026

Another hot summer day is ongoing across Oklahoma and western- north Texas, with widespread >100-105 F heat indices likely through early this evening. While a breezy south-southwest wind may offer some "relief", those planning time outdoors should make sure to take precautions. A Heat Advisory remains in effect until 8 PM this evening for portions of northern Oklahoma, where recent heavy rainfall is locally maximizing humidity and resultant heat indices.

The region remains on the southeast periphery of a deep upper trough across the western CONUS. While the best synoptic lift remains displaced to the north, hot/well-mixed conditions and a weak dryline circulation should yield scattered convection across the Texas Panhandle over the coming hours. Once again, it appears that most/all activity will dissipate prior to crossing the 100th meridian, though some residual strong wind potential may move into far western Oklahoma after 6 PM this evening.

As will be the case for much of the upcoming week, don't expect too much temperature relief overnight, with early morning lows in the upper-70s to low-80s. The potential for matched or exceeded "warm low" records remains in play, especially across Oklahoma.

Ungar

SHORT TERM

(Monday through Tuesday night) Issued at 138 PM CDT Sun Jun 28 2026

A fitting title for the forecast early next week would be "Rinse and Repeat", with hot daytime conditions, very low evening storm chances across the far west and potentially record-setting (warm) early morning temperatures.

Locally targeted heat headlines will be possible, especially for far north-eastern portions of the area, as the axis of deep moisture transport shifts eastward with time. There is also signal that storm risks may inch slowly eastward (into more of western Oklahoma) with time into next week, as the upper pattern begins a slow transition and we experience greater influence from Western U.S. troughing.

Ungar

LONG TERM

(Wednesday through Saturday) Issued at 141 AM CDT Sun Jun 28 2026

The heat continues with very low rain chances. High temperatures and heat index values are forecast to gradually increase towards end of next week and into next weekend with heat index values of at least 105 degrees forecast to return to a few locations on Thursday and becoming more widespread by Saturday. The GFS & European models indicate isolated showers and thunderstorms by evening of July 4th for parts of northwest/western Oklahoma, but the ensemble blend keep chances very low for now.

Thompson

AVIATION

(00Z TAFS) Issued at 543 PM CDT Sun Jun 28 2026

VFR conditions to continue.

Some high clouds expected overnight and during the day Monday. Otherwise gusty south winds expected throughout the forecast period with only a slight drop right around sunset before increasing again overnight. Even with the gusty winds overnight, llws will be an issue across much of central and northern OK terminals.

PRELIMINARY POINT TEMPS/POPS

Oklahoma City OK 77 95 78 96 / 0 0 0 0 Hobart OK 77 98 77 97 / 0 0 0 0 Wichita Falls TX 77 98 76 98 / 0 0 0 0 Gage OK 80 100 78 98 / 20 0 20 10 Ponca City OK 79 92 79 94 / 0 0 0 0 Durant OK 78 94 77 95 / 0 0 0 0

OUN WATCHES/WARNINGS/ADVISORIES

OK...Heat Advisory until 8 PM CDT this evening for OKZ005>008-010>013- 017>020.

TX...None.