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™
Houston, TXovercast clouds717
Sacramento, CAovercast clouds584
Miami, FLfew clouds694
San Francisco, CAovercast clouds604
Anaheim, CAbroken clouds543
Arlington, TXovercast clouds583
Los Angeles, CAclear sky543
Phoenix, AZclear sky633
San Diego, CAovercast clouds573
Tampa, FLscattered clouds573
Atlanta, GAbroken clouds391
Baltimore, MDscattered clouds371
Boston, MAbroken clouds421
Bronx, NYclear sky361
Chicago (AL), ILclear sky201
Chicago (NL), ILclear sky201
Cincinnati, OHscattered clouds311
Cleveland, OHclear sky291
Denver, COclear sky321
Detroit, MIclear sky211
Kansas City, MOclear sky291
Milwaukee, WIclear sky121
Minneapolis, MNbroken clouds71
Philadelphia, PAfew clouds361
Pittsburgh, PAfew clouds351
Queens, NYbroken clouds371
Seattle, WAbroken clouds441
St. Louis, MObroken clouds291
Toronto, ONscattered clouds251
Washington, DCscattered clouds381
Data last updated: 1766318170
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