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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HRF forecast value available for each contest, with detailed data throughout the 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 sky636
Tampa, FLbroken clouds816
Los Angeles, CAbroken clouds625
Miami, FLbroken clouds814
Phoenix, AZbroken clouds664
San Diego, CAbroken clouds614
Sacramento, CAclear sky583
San Francisco, CAclear sky593
Arlington, TXlight snow201
Atlanta, GAovercast clouds451
Baltimore, MDbroken clouds201
Boston, MAfew clouds151
Bronx, NYclear sky171
Chicago (AL), ILovercast clouds71
Chicago (NL), ILovercast clouds71
Cincinnati, OHscattered clouds151
Cleveland, OHclear sky91
Denver, COovercast clouds191
Detroit, MIclear sky81
Houston, TXovercast clouds431
Kansas City, MOsnow31
Milwaukee, WIclear sky21
Minneapolis, MNclear sky-21
Philadelphia, PAbroken clouds171
Pittsburgh, PAclear sky121
Queens, NYbroken clouds171
Seattle, WAfew clouds411
St. Louis, MOlight snow71
Toronto, ONbroken clouds141
Washington, DCbroken clouds211
Data last updated: 1769284569
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