How does wind affect home runs in MLB?

Wind blowing out adds carry to fly balls and wind blowing in knocks them down. The effect scales with both wind speed and how closely the wind lines up with the center-field axis: a strong wind straight out to center can boost home-run carry by as much as roughly 25%, while a crosswind at the same speed has far less effect. Our board shows each ballpark’s actual wind direction relative to its field orientation, not just a compass reading.

Which MLB stadiums have roofs or domes?

MLB has one fixed dome — Tropicana Field — plus seven retractable-roof parks: Globe Life Field, Daikin Park (formerly Minute Maid Park), Chase Field, T-Mobile Park, American Family Field, Rogers Centre and loanDepot park. A closed roof takes weather out of play entirely. The board marks each game’s roof status — when the roof is closed, wind and rain have no effect on the game. Retractable-roof decisions are published a few hours before first pitch; until then the board marks the roof status as pending and leans on the game-time forecast to flag whether the roof is likely open or closed. When the roof is likely open, predictions apply that forecast; a likely-closed roof keeps weather out until the state is confirmed.

Does temperature change how far a baseball travels?

Yes — warm air is less dense, so fly balls carry farther on hot days. As a rule of thumb each extra degree adds roughly one percent to home-run likelihood relative to a cool night, which is why a 95° afternoon slate plays very differently from a 60° evening one. The board folds temperature into each game’s overall HR context read.

How is delay risk shown?

The precipitation number is the peak probability across the scheduled game window — not the chance at first pitch — so a storm arriving in the 6th inning still shows up. A 0% means the forecast is genuinely dry for the whole game. On forecast alone roofed parks read clear (the roof closes for rain), but once the league posts a delay or postponement any park shows it. During wildfire-smoke events an air-quality reading appears on the card and can raise the delay risk on its own.

MLB Weather Report

Per-game conditions, roof/dome status, the actual HR wind effect, and the hourly forecast for Thursday, September 24.

Game Date

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STL@

PITScheduled

12:35 PM ET

PNC Park

Mostly Sunny

Temp62°F50% humidity

Precip0%

Wind9 mphIn from LF

HR Weather-24.8%1028 hPa (lower carries better)

Winds in-6.3% carryfrom 58° ENE

Clear

Ballpark local time (EDT)

12:00 PM61°0%53%9 ENE

1:00 PM62°0%50%9 ENE

2:00 PM64°0%48%9 ENE

3:00 PM65°0%47%9 NE

4:00 PM65°0%47%9 NE

CWS@

KCScheduled

2:10 PM ET

Kauffman Stadium

Partly Sunny

Temp75°F52% humidity

Precip1%

Wind4 mphIn from RF

HR Weather-6.0%1024 hPa (lower carries better)

Winds in-2.6% carryfrom 108° ESE

Clear

Ballpark local time (CDT)

1:00 PM75°1%52%4 ESE

2:00 PM77°1%48%4 ESE

3:00 PM79°1%44%5 E

4:00 PM78°1%43%5 ENE

5:00 PM78°1%42%6 ENE

MIA@

CHCScheduled

2:20 PM ET

Wrigley Field

Mostly Sunny

Temp64°F81% humidity

Precip0%

Wind8 mphIn from RF

HR Weather-22.4%1026 hPa (lower carries better)

Winds in-8.4% carryfrom 76° ENE

Clear

Ballpark local time (CDT)

1:00 PM64°0%81%8 ENE

2:00 PM65°0%77%8 ENE

3:00 PM65°0%77%7 ENE

4:00 PM66°0%76%6 ENE

5:00 PM65°0%79%6 NE

NYM@

TEXScheduled

2:35 PM ET

Globe Life Field

Retractable RoofRoof Likely Closed

Overcast

Roof status pending — likely closed based on the game-time forecast, confirmed closer to first pitch.

Temp93°F40% humidity

Precip0%

Wind5 mphE

HR Weather--

Clear

Ballpark local time (CDT)

1:00 PM90°0%43%5 ESE

2:00 PM93°0%40%5 E

3:00 PM94°0%38%6 E

4:00 PM94°0%37%7 E

5:00 PM94°0%36%8 E

ARI@

COLScheduled

3:10 PM ET

Coors Field

Chance Rain Showers

Temp74°F39% humidity

Precip7%

Wind5 mphIn from CF

HR Weather-4.0%1018 hPa (lower carries better)

Winds in-6.0% carryfrom 31° NNE

Possible delay

Ballpark local time (MDT)

1:00 PM74°2%39%5 NNE

2:00 PM75°3%36%6 NE

3:00 PM76°4%34%6 NE

4:00 PM76°6%32%7 NE

5:00 PM76°7%31%7 ENE

MIL@

PHIScheduled

6:05 PM ET

Citizens Bank Park

Mostly Cloudy

Temp64°F54% humidity

Precip0%

Wind12 mphIn from RF

HR Weather-24.1%1026 hPa (lower carries better)

Winds in-12.7% carryfrom 44° NE

Clear

Ballpark local time (EDT)

6:00 PM64°0%54%12 NE

7:00 PM62°0%57%9 NE

8:00 PM60°0%62%7 NNE

9:00 PM59°0%61%7 NNE

10:00 PM58°0%55%9 NNE

CLE@

BOSScheduled

6:45 PM ET

Fenway Park

Mostly Cloudy

Temp53°F67% humidity

Precip0%

Wind7 mphIn from CF

HR Weather-30.5%1029 hPa (lower carries better)

Winds in-8.7% carryfrom 34° NE

Clear

Ballpark local time (EDT)

6:00 PM56°0%60%10 NE

7:00 PM53°0%67%7 NE

8:00 PM51°0%70%6 NNE

9:00 PM51°0%77%5 NNE

10:00 PM53°0%76%6 NNE

TB@

NYYScheduled

7:05 PM ET

Yankee Stadium

Mostly Cloudy

Temp61°F45% humidity

Precip0%

Wind8 mphIn from LF

HR Weather-24.2%1026 hPa (lower carries better)

Winds in-4.8% carryfrom 13° NNE

Clear

Ballpark local time (EDT)

7:00 PM61°0%45%8 NNE

8:00 PM59°0%49%9 NNE

9:00 PM58°0%51%8 NNE

10:00 PM56°0%54%9 NNE

11:00 PM54°0%54%10 NNE

CIN@

ATLScheduled

7:15 PM ET

Truist Park

Partly Cloudy

Temp72°F58% humidity

Precip0%

Wind7 mphL to R

HR Weather-2.1%1020 hPa (lower carries better)

Crosswind+1.3% carryfrom 47° NE

Clear

Ballpark local time (EDT)

7:00 PM72°0%58%7 NE

8:00 PM69°0%63%5 NE

9:00 PM69°0%65%3 ENE

10:00 PM65°0%71%4 ENE

11:00 PM64°0%74%5 E

LAA@

SEAScheduled

9:40 PM ET

T-Mobile Park

Retractable RoofRoof Likely Open

Overcast

Roof status pending — likely open based on the game-time forecast, confirmed closer to first pitch. Predictions apply the forecast below and update if the roof is instead confirmed closed.

Temp56°F79% humidity

Precip53%

Wind4 mphIn from CF

HR Weather-15.2%1010 hPa (lower carries better)

Winds in-4.6% carryfrom 60° ENE

ClearAir quality 105 — sensitive groups

Ballpark local time (PDT)

6:00 PM56°21%82%4 N

7:00 PM56°29%79%4 ENE

8:00 PM56°32%78%4 ENE

9:00 PM55°52%84%3 NNW

10:00 PM54°53%86%3 NNE

HOU@

ATHScheduled

9:40 PM ET

Sutter Health Park

Mostly Clear

Temp80°F33% humidity

Precip0%

Wind8 mphOut to CF

HR Weather+21.7%1011 hPa (lower carries better)

Winds out+10.0% carryfrom 232° SW

Clear

Ballpark local time (PDT)

6:00 PM87°0%26%10 WSW

7:00 PM80°0%33%8 SW

8:00 PM75°0%37%7 SW

9:00 PM71°0%38%5 SSW

10:00 PM69°0%40%5 SW

SD@

LADScheduled

10:10 PM ET

UNIQLO Field at Dodger Stadium

Mostly Clear

Temp68°F92% humidity

Precip0%

Wind5 mphOut to RF

HR Weather+3.6%1013 hPa (lower carries better)

Winds out+5.6% carryfrom 242° WSW

Clear

Ballpark local time (PDT)

7:00 PM68°1%92%5 WSW

8:00 PM68°0%92%4 SW

9:00 PM68°0%92%3 SSW

10:00 PM68°0%91%1 SSW

11:00 PM67°0%91%1 W

MLB Weather Report

About the MLB Weather Report

How ballpark weather changes MLB games

How does wind affect home runs in MLB?

Which MLB stadiums have roofs or domes?

Does temperature change how far a baseball travels?

How is delay risk shown?

How these weather readings are computed