
Tuesday, September 8 · Rain-delay risk and HR boost at first pitch · tap a game for the 4-hour forecast
Today's MLB ballpark weather and how it shifts home run odds. Each game shows temperature, precipitation and rain-delay risk, plus wind speed and direction read against the park's orientation, so you can see which stadiums have wind blowing out and where warm air is adding carry before first pitch.
Retractable roof — conditions apply only if open
Retractable roof — conditions apply only if open
Wind blowing out toward the outfield helps fly balls carry and lifts home run odds, while wind blowing in knocks them down. A steady out-blowing wind of 10 mph or more can add several feet of carry, turning warning-track outs into home runs, especially to the pull side.
Yes. Warmer air is less dense, so a batted ball carries farther on a hot day than a cold one. Every ten degrees of extra warmth adds roughly two to three feet of fly-ball distance, which nudges borderline drives over the fence and raises home run odds across the park.
The cards above read each open-air ballpark's current wind speed and direction against the field orientation, then flag whether it helps or hurts home runs at first pitch. Domed stadiums are marked as neutral. Tap any game to see the four-hour forecast around game time.
Temperatures across today's slate run from the mid-60s in Seattle all the way up to 98 degrees in Kansas City, with Sacramento, Atlanta, San Diego, and Los Angeles also sitting in the upper 80s to low 90s. The wind stories worth paying attention to are Oracle Park's 14 mph blow and Kauffman Stadium's 9 mph out to center, both of which stand out from a mostly calm slate. Kauffman Stadium is the headliner for favorable conditions. It's 98 degrees, the wind is blowing straight out to center at 9 mph, and the park carries a High wind receptiveness rating, so that carry is real. The downside is the X-Large outfield, which means hitters have to truly smoke the ball, but the model still rates this a Strong Boost and it earns that. Citizens Bank Park pairs a Very High receptiveness rating with a Small outfield and a wind nudging out toward left, giving it a Slight Boost with genuine upside, the compact dimensions make a warm 77-degree day feel even friendlier. Truist Park at 87 degrees with a Medium receptiveness rating chips in as a Slight Boost even though the crosswind is neutral for carry. Dodger Stadium's 92 degrees drives a Strong Boost on its own, though the Low receptiveness means the crosswind there is mostly window dressing. Camden Yards, loanDepot park, and Sutter Health Park all land as Slight Boosts too. At loanDepot, the roof structure gives it a None receptiveness rating, so the wind is irrelevant regardless of direction. At American Family Field, the Low receptiveness means that gentle crosswind can be set aside as well. Oracle Park is the cautionary tale of the day: 14 mph blowing out to center sounds electric, but the park's Low receptiveness rating means the walls and surroundings absorb most of that, and the model comes out Neutral as a result, so don't let the wind speed fool you there. No rain concerns are flagged anywhere on today's slate, so delays and postponements are not a factor to worry about.