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™
Anaheim, CAlight rain618
Arlington, TXclear sky708
Los Angeles, CAmoderate rain588
Miami, FLfew clouds818
San Diego, CAscattered clouds638
Houston, TXclear sky717
Phoenix, AZfew clouds687
Tampa, FLclear sky745
Atlanta, GAclear sky634
Kansas City, MOovercast clouds664
Sacramento, CAlight rain533
Baltimore, MDbroken clouds583
Boston, MAlight rain523
Bronx, NYovercast clouds553
Chicago (AL), ILovercast clouds623
Cincinnati, OHclear sky603
Detroit, MIclear sky593
Milwaukee, WIovercast clouds543
Philadelphia, PAovercast clouds563
Pittsburgh, PAovercast clouds583
Queens, NYovercast clouds543
St. Louis, MOclear sky673
Washington, DCovercast clouds593
Chicago (NL), ILovercast clouds612
Cleveland, OHscattered clouds602
Toronto, ONfew clouds572
Denver, COscattered clouds501
Minneapolis, MNovercast clouds461
San Francisco, CAfew clouds511
Seattle, WAclear sky421
Data last updated: 1760450169
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