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™
Los Angeles, CAclear sky707
Anaheim, CAclear sky706
Miami, FLclear sky546
San Diego, CAbroken clouds666
Sacramento, CAclear sky624
Arlington, TXclear sky604
Phoenix, AZbroken clouds734
Denver, COclear sky513
San Francisco, CAbroken clouds653
Atlanta, GAclear sky371
Baltimore, MDclear sky241
Boston, MAscattered clouds161
Bronx, NYclear sky281
Chicago (AL), ILovercast clouds281
Chicago (NL), ILovercast clouds291
Cincinnati, OHovercast clouds211
Cleveland, OHclear sky161
Detroit, MIovercast clouds201
Houston, TXclear sky571
Kansas City, MOscattered clouds441
Milwaukee, WIovercast clouds311
Minneapolis, MNclear sky361
Philadelphia, PAfew clouds211
Pittsburgh, PAovercast clouds211
Queens, NYfew clouds261
Seattle, WAbroken clouds511
St. Louis, MOclear sky331
Tampa, FLfew clouds511
Toronto, ONfew clouds211
Washington, DCclear sky261
Data last updated: 1770342968
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