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™
Seattle, WAclear sky607
Tampa, FLbroken clouds707
Miami, FLclear sky756
Anaheim, CAclear sky725
Houston, TXscattered clouds665
Los Angeles, CAclear sky715
San Diego, CAclear sky715
Phoenix, AZclear sky724
Sacramento, CAclear sky624
San Francisco, CAclear sky654
Tampa Bay, FLbroken clouds704
Washington, DCbroken clouds574
Arlington, TXclear sky673
Atlanta, GAbroken clouds613
Baltimore, MDbroken clouds563
Bronx, NYclear sky563
Cincinnati, OHlight rain533
Kansas City, MOclear sky563
Las Vegas, NVclear sky613
Philadelphia, PAovercast clouds553
Pittsburgh, PAovercast clouds523
Queens, NYbroken clouds563
St. Louis, MOscattered clouds573
Williamsport, PAovercast clouds491
Boston, MAclear sky461
Chicago (AL), ILovercast clouds491
Chicago (NL), ILovercast clouds491
Cleveland, OHbroken clouds501
Denver, COclear sky501
Detroit, MIovercast clouds481
Milwaukee, WIovercast clouds491
Minneapolis, MNclear sky401
Toronto, ONovercast clouds461
Data last updated: 1794452167
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