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MLB Weather Today (September 9): Forecast, Rain and Wind for All 15 Games

MLB Weather Today (September 9): Forecast, Rain and Wind for All 15 Games

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By: DK Network AI

Looking for today’s MLB weather forecast? Wednesday’s 15-game slate features three games with MODERATE weather risk, where thunderstorms could cause interruptions, while the remaining 12 games are expected to have clean conditions for uninterrupted play.


Today’s MLB Weather Forecast

  • Highest Weather Risk: Comerica Park, where thunderstorms are likely near first pitch for Twins at Tigers
  • Expected Postponements: None expected across the full 15-game slate
  • Most Significant Wind: Yankee Stadium, where 14-17 mph southerly winds blow toward the short right-field porch
  • Primary Weather Story: Scattered thunderstorms affect Detroit, Kansas City, and Boston, while the remaining 12 games play in favorable weather

At-a-Glance Weather Table

MatchupFirst Pitch (ET)Weather RiskRain %WindTempRoof
Twins at Tigers1:10 p.m.MODERATE43-71%13 mph WSW81ยฐFOpen
Angels at Red Sox6:45 p.m.MODERATE28-38%15 mph S75ยฐFOpen
Diamondbacks at Royals7:40 p.m.MODERATE37-57%5 mph E83ยฐFOpen

MLB Games to Monitor for Weather

Twins at Tigers (1:10 p.m. ET)

Thunderstorms are expected to develop across the Detroit metro during the early afternoon, with the highest precipitation chances (68-71%) lining up directly with the first few innings. Conditions should gradually improve through the middle of the game, with rain chances dropping below 10% by 7:00 p.m. A brief interruption during the early innings remains plausible, though the game should complete without significant operational concerns.

Weather Timeline

  • 1:00-2:00 p.m. โ€” Scattered showers near Comerica Park as thunderstorms develop
  • 2:00-3:00 p.m. โ€” Peak storm intensity; precipitation chances reach 71%
  • 4:00-5:00 p.m. โ€” Storms weaken, but a secondary round remains possible
  • 6:00 p.m. โ€” Rain chances drop below 30%; skies partially clear
  • 7:00 p.m. โ€” Mostly cloudy with dry conditions returning

Diamondbacks at Royals (7:40 p.m. ET)

Scattered thunderstorms have been firing across the Kansas City area since the early afternoon, and storm chances remain elevated (37-57%) through the evening game window. Unlike Detroit, where storms move through and clear, Kansas City faces persistent instability with additional rounds possible into the late evening. An interruption remains plausible, though widespread coverage would be needed to force a postponement.

Weather Timeline

  • 7:00-7:30 p.m. โ€” Thunderstorms likely in the area near first pitch; 57% chance of precipitation
  • 8:00-9:00 p.m. โ€” Storm chances dip slightly to 37-39% but remain active
  • 10:00 p.m. โ€” Instability increases again; precipitation chances climb back to 50%
  • 11:00 p.m. โ€” Storms persist with no clean clearing window through game’s end

Angels at Red Sox (6:45 p.m. ET)

Scattered rain showers are possible throughout the evening in Boston, with precipitation chances building from 18% at first pitch to a peak of 38% around 8:00 p.m. before gradually easing. These are not thunderstorms, and any showers that develop should be light and brief. Strong southerly winds (13-15 mph) create the more notable baseball storyline at Fenway Park. A brief interruption is possible but remains unlikely.

Weather Timeline

  • 6:00-7:00 p.m. โ€” Light rain possible as showers develop; precipitation 18-28%
  • 7:30-8:30 p.m. โ€” Peak rain window; chances reach 38%
  • 9:00-10:00 p.m. โ€” Showers gradually diminish; precipitation drops to 25-32%
  • 11:00 p.m. โ€” Conditions improve further as the system pushes through overnight

Games Expected to Play in Favorable Weather

  • Blue Jays at Athletics (3:05 p.m.) โ€” Clear skies and extreme heat (100ยฐF) in Sacramento. No precipitation concerns.
  • Cardinals at Giants (3:45 p.m.) โ€” Unusually warm for San Francisco at 82ยฐF with mostly sunny skies and light winds. Marine layer suppressed.
  • Nationals at Padres (4:10 p.m.) โ€” Sunny and hot (93ยฐF) in San Diego with light southwest winds. No weather concerns.
  • Rangers at Mariners (4:10 p.m.) โ€” Retractable roof available in Seattle. Partly sunny, 73ยฐF, no rain risk.
  • Guardians at Orioles (6:35 p.m.) โ€” Warm evening at Camden Yards (87ยฐF) with mostly clear skies and 12 mph southerly winds.
  • Astros at Phillies (6:40 p.m.) โ€” Dry conditions in Philadelphia with 84ยฐF and a 10 mph southwest breeze. No precipitation expected.
  • Mets at Marlins (6:40 p.m.) โ€” Retractable roof at loanDepot park handles any South Florida thunderstorms. No concerns.
  • Rockies at Yankees (7:05 p.m.) โ€” Dry and warm (84ยฐF) with 14 mph southerly winds at Yankee Stadium. No rain risk.
  • Rays at Braves (7:15 p.m.) โ€” Clear skies in Atlanta, 87ยฐF at first pitch, cooling into the upper 70s. No weather concerns.
  • Pirates at White Sox (7:40 p.m.) โ€” Morning showers clear well before first pitch. Mostly cloudy, 76ยฐF, dry evening expected.
  • Cubs at Brewers (7:40 p.m.) โ€” The retractable roof is available at American Family Field. Dry conditions expected regardless.
  • Reds at Dodgers (10:10 p.m.) โ€” Clear and very hot (92ยฐF even at first pitch) in Los Angeles. No weather concerns.

DFS and Betting Weather Notes

Rockies at Yankees

Strong southerly winds (14-17 mph) blow directly toward Yankee Stadium’s short right-field porch throughout the evening. Warm temperatures (84ยฐF at first pitch) further support ball carry. These conditions modestly favor left-handed power hitters and could improve home-run potential, particularly to right and right-center. DFS players building Yankee Stadium stacks should account for the enhanced offensive environment, and bettors may find value monitoring the total.

Twins at Tigers

Weather uncertainty complicates both DFS and betting decisions in Detroit. Starting pitchers face potential interruptions during the early innings when thunderstorm activity peaks, which could affect workload and bullpen usage. DFS lineups built around this game carry additional volatility, and bettors should monitor pregame radar closely before committing.


FAQs

How does wind affect MLB betting totals?

Wind direction and speed can meaningfully influence run-scoring expectations. Outward winds blowing from home plate toward the outfield generally improve fly-ball carry and increase home-run potential, which may push totals higher. Inward winds suppress offense and can keep totals lower. Oddsmakers typically account for wind in their opening lines, but situations where wind conditions shift after the market opens can still create opportunities.

What MLB stadiums have retractable roofs?

Seven MLB stadiums currently feature retractable roofs: American Family Field (Milwaukee), Chase Field (Arizona), Daikin Park (Houston), Globe Life Field (Texas), loanDepot park (Miami), Rogers Centre (Toronto), and T-Mobile Park (Seattle). When the roof closes, weather has minimal impact on gameplay, making these venues among the safest options during inclement weather.

How does humidity affect home runs in baseball?

Higher humidity slightly reduces air density, which can improve ball carry and marginally increase home-run distance. The effect is modest compared to factors like wind, temperature, and elevation, but it becomes more noticeable in already hitter-friendly environments. Extremely humid conditions can also affect pitcher grip, potentially reducing the effectiveness of breaking pitches.


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