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, CAclear sky673
Los Angeles, CAclear sky633
Phoenix, AZclear sky593
San Diego, CAclear sky603
Miami, FLovercast clouds572
San Francisco, CAfew clouds522
Sacramento, CAovercast clouds451
Arlington, TXclear sky411
Atlanta, GAlight rain471
Baltimore, MDovercast clouds331
Boston, MAfew clouds231
Bronx, NYfew clouds301
Chicago (AL), ILovercast clouds201
Chicago (NL), ILovercast clouds201
Cincinnati, OHovercast clouds151
Cleveland, OHclear sky41
Denver, COclear sky311
Detroit, MIclear sky141
Houston, TXclear sky501
Kansas City, MOovercast clouds291
Milwaukee, WIovercast clouds131
Minneapolis, MNovercast clouds131
Philadelphia, PAbroken clouds291
Pittsburgh, PAclear sky141
Queens, NYbroken clouds301
Seattle, WAclear sky501
St. Louis, MOscattered clouds231
Tampa, FLclear sky441
Toronto, ONclear sky91
Washington, DCovercast clouds311
Data last updated: 1770209770
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