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™
Phoenix, AZscattered clouds698
Anaheim, CAbroken clouds627
Los Angeles, CAclear sky636
San Diego, CAfew clouds645
Tampa, FLfew clouds825
Miami, FLbroken clouds764
Houston, TXovercast clouds513
Sacramento, CAovercast clouds451
Arlington, TXclear sky421
Atlanta, GAlight rain431
Baltimore, MDovercast clouds401
Boston, MAlight rain441
Bronx, NYovercast clouds401
Chicago (AL), ILovercast clouds311
Chicago (NL), ILovercast clouds311
Cincinnati, OHovercast clouds331
Cleveland, OHovercast clouds311
Denver, COovercast clouds241
Detroit, MIlight snow321
Kansas City, MOscattered clouds261
Milwaukee, WIovercast clouds311
Minneapolis, MNovercast clouds221
Philadelphia, PAovercast clouds391
Pittsburgh, PAovercast clouds401
Queens, NYlight rain411
San Francisco, CAbroken clouds501
Seattle, WAscattered clouds441
St. Louis, MOfew clouds291
Toronto, ONbroken clouds361
Washington, DCovercast clouds391
Data last updated: 1764532568
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