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 clouds626
Arlington, TXovercast clouds584
Anaheim, CAovercast clouds573
Los Angeles, CAclear sky563
Phoenix, AZclear sky593
San Diego, CAfew clouds533
San Francisco, CAclear sky522
Sacramento, CAclear sky471
Atlanta, GAclear sky321
Baltimore, MDovercast clouds271
Boston, MAclear sky21
Bronx, NYclear sky161
Chicago (AL), ILscattered clouds201
Chicago (NL), ILscattered clouds191
Cincinnati, OHlight snow281
Cleveland, OHovercast clouds241
Denver, COclear sky351
Detroit, MIovercast clouds251
Kansas City, MOclear sky291
Miami, FLclear sky441
Milwaukee, WIclear sky111
Minneapolis, MNclear sky41
Philadelphia, PAfew clouds201
Pittsburgh, PAovercast clouds251
Queens, NYfew clouds171
Seattle, WAovercast clouds511
St. Louis, MOclear sky311
Tampa, FLfew clouds391
Toronto, ONovercast clouds251
Washington, DCovercast clouds251
Data last updated: 1770119770
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