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™
Phoenix, AZclear sky9210
Sacramento, CAclear sky8610
Anaheim, CAclear sky838
Houston, TXclear sky838
Los Angeles, CAclear sky848
Miami, FLlight rain798
Milwaukee, WIbroken clouds607
Queens, NYclear sky607
Denver, COclear sky696
Las Vegas, NVclear sky836
San Diego, CAclear sky816
Arlington, TXclear sky755
Bronx, NYclear sky605
Chicago (AL), ILclear sky675
Cincinnati, OHfew clouds685
Detroit, MIclear sky645
Washington, DCclear sky605
Baltimore, MDclear sky594
Boston, MAclear sky554
Chicago (NL), ILfew clouds674
Kansas City, MOclear sky674
Minneapolis, MNfew clouds584
Philadelphia, PAclear sky574
Pittsburgh, PAclear sky634
San Francisco, CAclear sky624
St. Louis, MOclear sky724
Tampa Bay, FLlight rain744
Tampa, FLovercast clouds744
Williamsport, PAfew clouds533
Atlanta, GAclear sky633
Cleveland, OHclear sky683
Seattle, WAclear sky583
Toronto, ONscattered clouds613
Data last updated: 1791428212
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