Do certain weather conditions lead to more home runs?

Yes! Weather conditions can change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple way to see the if weather will help or hinder baseball flight during a game. The Home Run Forecast Index demonstrates a strong correlation with the number of HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand HRFI forecast data by team and for each game.

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Current Weather Conditions and HRF Index

The table below shows the Home Run Forecast Index (HRFI) value for each big league ballpark. The HRFI ranges from 1 to 10, with 10 indicating the most favorable weather conditions for ball fight and 1 indicating least favorable. Learn more about how we calculate this index here.

This data is updated hourly at the top of the hour. For ballparks with a retractable roof, the index is calculated for open roof conditions. Check local sources for roof status. For ballparks with a permanent roof, the index is calculated for indoor conditions.

Ballpark LocationSky CoverTemperature (°F)Home Run Forecast Index™
Cleveland, OHbroken clouds598
Miami, FLscattered clouds848
Phoenix, AZclear sky818
Anaheim, CAclear sky747
Kansas City, MOclear sky657
Los Angeles, CAclear sky767
San Diego, CAclear sky717
Tampa, FLheavy intensity rain767
Toronto, ONbroken clouds627
Arlington, TXclear sky696
Chicago (NL), ILclear sky626
Cincinnati, OHclear sky596
Houston, TXclear sky766
Milwaukee, WIclear sky626
St. Louis, MOclear sky646
Chicago (AL), ILclear sky635
Las Vegas, NVclear sky715
Queens, NYclear sky595
Tampa Bay, FLlight rain775
Atlanta, GAclear sky624
Baltimore, MDclear sky584
Minneapolis, MNfew clouds564
Philadelphia, PAclear sky584
Sacramento, CAclear sky654
San Francisco, CAclear sky614
Washington, DCclear sky594
Boston, MAclear sky533
Bronx, NYclear sky583
Denver, COclear sky613
Detroit, MIclear sky613
Pittsburgh, PAclear sky543
Seattle, WAovercast clouds543
Williamsport, PAfew clouds501
Data last updated: 1791381370
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