July Weather Outlook: Goodbye Rain, Hello Heat

Tue, 24 Jun 2025 20:11:21 GMT

The Pacific Jet Stream has been going strong since early spring, sending heavy rains down through the Ohio River Valley, delaying farmers’ planting efforts there, then more recently, moving large amounts of moisture into the central Corn Belt.

“Nobody would have thought three months ago that we were going to have this much rain occurring across key crop areas, especially in the southern half of the Plains and in the Delta and Tennessee River Basin,” says Drew Lerner, president and senior agricultural meteorologist of World Weather.

But be advised, the engine driving that jet stream is about to turn off, says John Hoomenuk of EmpireWeather.com . He anticipates that by early July, some farmers will see those heavy rain events turn into a trickle.

Weather outlook for early July.

(BAM Weather)

Weather Brewing For July

“As we get into the second week of July or so, we’ll see the ridge push a little further north, and we’ll see some drier forecasts starting to appear, starting in Kansas and Nebraska, and then spreading a little bit into southwestern and central Iowa at times as well,” Hoomenuk says.

“That’s really caught our attention, because we just haven’t seen that [pattern] so far this year, and it’s a pretty big change compared to where we’ve been,” he adds.

As July goes on and August nears, Hoomenuk says the weather data indicate the jet stream will go up into Canada and drop into the Great Lakes.

If that occurs, he says farmers in Indiana, Illinois and Ohio are likely to get some precipitation dropping on the east side of the ridge. But across the Central Plains, Kansas, Nebraska, Dakotas, and maybe even into parts of Iowa, farmers will see their conditions trend a little drier.

“I think that’s not a huge concern just yet, but it’s a pretty big change up compared to where we’ve been the last couple of weeks,” Hoomenuk told AgriTalk host, Chip Flory, on Tuesday.

Drought Risks Remain In Place

The outlook for drier weather in July is not a surprise, based on the patterns some meteorologists saw shaping up last winter.

“The central United States is at about a 60% drought risk. Some of the best weather forecast models we have out there are trying to put the epicenter of that drought somewhere between Missouri, Nebraska, South Dakota, Iowa and southern Minnesota by the time we get into July and August,” says Eric Snodgrass, principal atmospheric scientist for Nutrien.

Much of the western U.S. has been enduring dry, hot conditions already this year. Much of the central Midwest is about to experience the same.

(The National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture and the National Oceanic and Atmospheric Administration.)

“When you think about those particular states, developing drought from spring to summer in any year is somewhere in the neighborhood of 28% to 38%,” he says. “Essentially, the risk is doubled this year.”

Snodgrass explains the canary in the coal mine for a drought will come from a combination of the Gulf of Alaska ocean temperatures and the Bermuda high, which is an area of high pressure that can influence weather patterns and tropical systems. If the Gulf of Alaska ocean temperatures begin dropping this summer, that’s a sign moisture will be lacking.

The silver lining, Hoomenuk says, is many farmers have either had excess or sufficient moisture this spring, so no alarm bells have been ringing yet for corn and soybean crops that are now in rapid growth.

His concern is the current weather patterns will stagnate, causing temperatures to rise.

“Most of the long-range data we’re seeing, if you look at July as a whole, is showing some pretty substantial [temperature] numbers in the Central Plains. We’re talking somewhere between four and five degrees above normal in some areas of Kansas and Nebraska, two or three degrees above normal for the month on average, surrounding that in parts of southwestern Iowa and the Dakotas,” he says.

As for states further east, such as Indiana, Michigan and Ohio, Hoomenuk says farmers there will likely see temperatures “closer to normal” for July, based on data he’s reviewed.

“The thing I keep seeing is temperatures looking to be about normal, maybe slightly warmer than normal – just a couple days of heat followed by a cool down and some rain, which is is pretty ideal,” he says. “It doesn’t seem like we’ll get into that long-term heat there in those eastern regions of the U.S, so the concern level out there is pretty low right now heading into July.”

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