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™
Arlington, TXclear sky808
Houston, TXbroken clouds788
Miami, FLlight rain758
Anaheim, CAfew clouds606
Tampa, FLbroken clouds736
Kansas City, MOheavy intensity rain635
Los Angeles, CAovercast clouds595
Tampa Bay, FLclear sky735
Atlanta, GAfew clouds694
Phoenix, AZscattered clouds714
Sacramento, CAclear sky584
San Francisco, CAscattered clouds564
St. Louis, MOclear sky724
Cincinnati, OHclear sky583
Mexico City, Mexicolight rain683
Minneapolis, MNlight rain533
Pittsburgh, PAclear sky523
San Diego, CAscattered clouds613
Seattle, WAscattered clouds613
Washington, DCovercast clouds523
Baltimore, MDfew clouds501
Boston, MAbroken clouds471
Bronx, NYclear sky471
Chicago (AL), ILovercast clouds501
Chicago (NL), ILovercast clouds491
Cleveland, OHscattered clouds511
Denver, COscattered clouds491
Detroit, MIclear sky511
Milwaukee, WIovercast clouds431
Philadelphia, PAclear sky451
Queens, NYfew clouds481
Toronto, ONclear sky491
Data last updated: 1777258570
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