Heat stress in Oklahoma City
Southern Plains heat: hot, often humid, wind-blown summers with strong sun.
Light precautions for intense activity. Keep water handy.
Wet-bulb globe temperature via the Liljegren (2008) method. This page is cached and refreshes in the background, so the live badge below can be a few minutes ahead of it.
View Oklahoma City on the live mapReading heat stress in Oklahoma City
Wet-bulb globe temperature (WBGT) is the heat measure that actually tracks danger to the body. Unlike the plain air temperature on your phone, it folds in humidity, wind, and direct sun: the factors that decide whether your sweat can still cool you. It’s the standard the military, athletic associations, and occupational-safety bodies use to call when outdoor activity is no longer safe.
That matters in Oklahoma City because southern Plains heat: hot, often humid, wind-blown summers with strong sun. The number above is the live outdoor WBGT for the city right now; tap through to the live map to inspect any neighborhood, scrub the forecast hour by hour, and see the 7-day outlook.
How hot Oklahoma City usually gets
Across 2015–2024, Oklahoma City averaged a 91°F daily high in summer: 44th hottest of the 174 metros we track, and July is typically the warmest month.
Most of the heat here sits below the extremes: around 66 days a year top 90°F, and only about 7 reach 100°F.
At about 62% summer humidity, the air is damp enough to blunt how well sweat cools you on the worst afternoons.
A bad day runs well past a normal one, with 110°F recorded against a 91°F summer average.
Daily high temperatures and humidity from ERA5 reanalysis, 2015–2024 (hottest day in the sample: 2022-07-19). These are climate averages for context: the reading at the top of this page is the live one.
For school sports, OSSAA (Oklahoma Secondary School Activities Association) publishes OSSAA Extreme Heat Policy: WBGT Activity Guidelines (2026-27 football coaches packet), which uses wet-bulb globe temperature. Oklahoma’s activity zones appear beside the live reading in the app. Our Oklahoma heat policy page has the details, the source and the date we last checked it.
Heat in Oklahoma City: common questions
How hot does it usually get in Oklahoma City?
Across 2015–2024, Oklahoma City averaged a 91°F daily high through summer, with about 66 days a year at or above 90°F and 7 at or above 100°F. July is typically the hottest month, and the hottest day in that sample reached 110°F. Figures are from ERA5 daily reanalysis.
When is the hottest time of year in Oklahoma City?
July has the highest average daily high in Oklahoma City. Summer humidity averages about 62%, enough to blunt how well sweat cools you on the hottest afternoons. Use the forecast on this page to plan around the specific days that matter.
Does Oklahoma have a heat policy for school sports?
OSSAA (Oklahoma Secondary School Activities Association) publishes OSSAA Extreme Heat Policy: WBGT Activity Guidelines (2026-27 football coaches packet), which uses wet-bulb globe temperature. Oklahoma’s activity zones appear beside the live reading in the app. Our WBGT is a modeled estimate rather than the on-site device reading a policy may call for, so check the association's own document for current requirements.
What is the WBGT in Oklahoma City right now?
The reading at the top of this page is the current wet-bulb globe temperature for Oklahoma City, Oklahoma, computed from live weather by the Liljegren (2008) method and labeled with how recently it updated. For an exact reading at your own neighborhood, plus an hour-by-hour forecast, open the live map.
Why is WBGT more useful than the temperature for Oklahoma City?
Air temperature ignores humidity, wind, and sun: the things that decide whether heat is dangerous. Oklahoma City's climate (southern Plains heat: hot, often humid, wind-blown summers with strong sun.) is exactly why a single "feels-like" or thermometer reading can understate the real risk. WBGT captures all of it in one number.
When is heat most dangerous in Oklahoma City?
July is the peak month in Oklahoma City, and within a day heat stress is highest in the early-to-mid afternoon when sun load is greatest. About 66 days a year reach 90°F, so most of the risk sits in a handful of afternoons rather than across the whole season. Use the forecast on this page to find the window that works.
Put Oklahoma City’s live heat stress on your site
A self-updating WBGT badge for schools, teams, camps, and local sites: it always shows the current reading and links back here.
<iframe src="https://wetbulbtracker.com/embed/oklahoma-city-ok" width="340" height="150" style="border:0" title="Live WBGT: Oklahoma City, OK" loading="lazy"></iframe>Paste it into any website. The badge updates itself and links back here. Add ?theme=light for light sites.