Historical weather data, all-time temperature records, and monthly climate averages for Jenks, OK. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Jenks sits in that classic Oklahoma shoulder season — expect a high around 67° and a low near 45°, with just a 20% chance of rain. The date has seen wild swings over the years, from a scorching 90° back in 1943 to a bitter 27° low in 1972, so don't put the jacket away just yet.
Jenks plays by Oklahoma's extreme rulebook: the thermometer has hit 113° in August and bottomed out at -13° during the brutal February 2021 freeze, a 126-degree spread that tells you everything about this climate. A single July day in 1963 dropped 7.54 inches of rain, and a February 2011 snowstorm buried the area under 13.2 inches.
Summers here are long and serious — highs average 93° through July and August, with the peak week of July 16–22 averaging 94°. If you're dodging heat, aim for March or October, when highs land in the low 60s to mid-70s. May is the wettest stretch of the year, averaging over an inch and a half in a single week, so pack accordingly for spring travel.