Oklahoma City residents gathered at the Oklahoma State Fair on Thursday, September 17, for the official start of the 2026 event. Meteorologists from KOCO 5 warned that the opening day will reach a high of 100 degrees Fahrenheit, marking the hottest fair opening in the past ten years.

Record‑hot opening day

Morning temperatures will be warm, but by early afternoon the mercury is expected to climb into the 90s and peak at 100 degrees. This surpasses the previous high for an opening day, which was 98 degrees in 2021. Fair officials advise visitors to stay hydrated, seek shade, and take frequent breaks inside air‑conditioned buildings.

Coolest openings and overall lows

In contrast, the coolest opening day on record for the last decade occurred in 2023, when the high reached only 73 degrees. The overall lowest high for any day of the fair in the past ten years was recorded in 2018, when the temperature peaked at 71 degrees.

Rainfall history at the fair

Local lore suggests the state fair brings rain to Oklahoma City. Data from the past ten years shows that rain has been recorded during every fair, though only two years – 2021 and 2022 – recorded a trace amount of precipitation, the smallest measurable amount. Rain on the opening day has been relatively rare, occurring only in 2016, 2019, and 2023. The 2020 fair was cancelled due to the COVID‑19 pandemic, so no data exists for that year.

The wettest fair on record was in 2018, when 2.28 inches of rain fell, creating muddy conditions across the fairgrounds and parking areas.

What to expect this year

Forecasters anticipate several days with a chance of rain during the 2026 fair. KOCO 5’s First Alert Weather Team, led by Chief Meteorologist Damon Lane, will provide daily updates so visitors can plan appropriate clothing and activities.

The team has been recognized by WeatheRate for delivering the most accurate forecasts in Oklahoma City for 14 consecutive years, underscoring their commitment to reliable weather information for the community.

Tips for fairgoers

• Carry plenty of water and drink regularly.
• Take breaks in shaded or air‑conditioned areas, especially during the hottest midday hours.
• Check KOCO 5’s daily fair forecast for rain chances and dress accordingly.
• Be prepared for possible muddy conditions if rain returns, particularly in parking lots and low‑lying areas.

With a mix of historic heat, occasional cool days, and a track record of rain, the Oklahoma State Fair continues to offer a dynamic outdoor experience for families and visitors across the state.

Original reporting: Oklahoma City News Feed (HLL/CB) — read the source article.