Do certain weather conditions lead to more home runs?

Yes! Weather conditions change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple indication of how weather will help or hinder baseball flight during a game. The HRFI demonstrates a strong correlation with HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand forecast data by team and 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™
Miami, FLscattered clouds8710
Tampa, FLbroken clouds686
Los Angeles, CAclear sky724
Anaheim, CAclear sky733
Phoenix, AZscattered clouds763
Sacramento, CAclear sky622
San Diego, CAclear sky702
Arlington, TXclear sky551
Atlanta, GAfew clouds471
Baltimore, MDlight rain381
Boston, MAovercast clouds341
Bronx, NYsnow321
Chicago (AL), ILbroken clouds261
Chicago (NL), ILbroken clouds261
Cincinnati, OHovercast clouds281
Cleveland, OHsnow311
Denver, COclear sky461
Detroit, MIlight snow321
Houston, TXscattered clouds641
Kansas City, MOclear sky301
Milwaukee, WIovercast clouds261
Minneapolis, MNovercast clouds151
Philadelphia, PAmoderate rain361
Pittsburgh, PAovercast clouds341
Queens, NYsnow321
San Francisco, CAbroken clouds621
Seattle, WAlight rain471
St. Louis, MOclear sky311
Toronto, ONovercast clouds321
Washington, DCmoderate rain381
Data last updated: 1771790168
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