PGA Weather Forecast: The Open Championship Round-by-Round Temps, Wind, Rain

The weather forecast for The Open Championship at Royal Birkdale sets up for a surprisingly favorable week by links golf standards, with cool temperatures, limited rain, and manageable winds expected throughout the tournament.

Sunday calls for light-to-moderate winds, minimal rain chances, and plenty of sunshine, reducing the likelihood of the dramatic weather swings often associated with The Open.

For bettors, DFS players, and golf fans tracking major championship weather forecasts, this week’s biggest storyline may be what doesn’t happen. Unless forecasts change, Royal Birkdale is expected to provide a fair, consistent test where elite ball striking and course management should outweigh any weather-related advantages, making player form and links experience even more important than usual.

How to Use the PGA Weather Forecast for Betting

Most golf bettors check the weather the same way everyone else does, glancing at a daily forecast the morning of Round 1.

That approach misses the point entirely. What actually matters for betting purposes is the round-by-round wind profile, the morning vs. afternoon draw split, and how wet or firm the course will play on Sunday when the tournament is decided.

This tool breaks each tournament into its four rounds and surfaces three things bettors need most:

1. Wind speed and direction at tee time
2. Rain probability
3. Scoring adjustment estimate based on how those conditions have historically affected PGA Tour scoring averages.

Wind is the only weather variable that truly hurts scoring

Rain gets most of the attention, but it’s a double-edged variable. Heavy rain can halt play, but it also softens greens and landing areas, making the course more receptive and often leading to lower scoring once play resumes. Wind has no upside. Every mph of sustained wind above roughly 15 mph adds measurable strokes to the field average. Historical PGA Tour data consistently shows that rounds played in 20+ mph conditions see field scoring averages climb by one to two strokes compared to calm-day baselines at the same course.

The scoring adjustment metric in our forecast, shown as strokes vs. field average, is calculated from wind speed, rain probability, and temperature at the representative afternoon tee time for each round. It gives you a fast read on which rounds will separate the field and which will be birdie-fests where everyone goes low.

The Morning Draw: Golf’s Most Overlooked Betting Edge

Wind typically builds throughout the day on PGA Tour courses. Coastal venues like Harbour Town Golf Links (RBC Heritage) and Memorial Park in Houston see the most pronounced morning-to-afternoon swings, calm at 7 am, gusting by 1 pm. When that spread is significant, the morning draw becomes a legitimate betting edge that the market frequently misprices.

The morning draw edge figure in our Bettor Intelligence section quantifies this advantage in strokes. When that number exceeds +1.0, it’s worth factoring heavily into your first-round leader bets, matchup selections, and outright picks. Players teeing off in the afternoon during a windy round face a statistically worse scoring environment, and that often isn’t priced into their odds at all.

The effect compounds over a four-round tournament. A player who draws afternoon tee times in the two windiest rounds of the week can face a cumulative disadvantage of two or more strokes against an equivalent player who drew mornings. Over a 156-man field, that’s enormous.

Course Softness: Why Rain Changes Who You Should Bet

Soft conditions after rain favor a specific type of player. When greens are receptive, aggressive iron players who attack flags, rather than conservative par-hunters, gain a meaningful edge. Stopping power on approach shots becomes less important. Players with high attack-angle iron swings, who might struggle on baked-out Augusta-style surfaces, often outperform expectations on waterlogged courses.

The course softness index in each round’s card shows how wet the course is likely to play, on a scale from Firm to Very Soft. Use this alongside the scoring tag (Low Scoring, Soft Scoring, Tough Scoring) to identify rounds where your preferred player archetype gains or loses value.

How Weather Will Shape July’s PGA Tour Schedule

July is one of the most weather-diverse months on the PGA Tour calendar. It opens with a familiar Midwest birdie-fest, shifts across the Atlantic for a windy links stretch in Scotland and England, then returns to the Upper Midwest and Detroit for two more summer scoring events where heat, humidity, and thunderstorms can play a major role. From TPC Deere Run to Royal Birkdale, weather won’t just influence scoring — it will shape betting value, course setup, and how each leaderboard develops.

The Open Championship — Royal Birkdale Golf Club, Southport, England (July 16–19)

The Open is always about weather, and Royal Birkdale is one of the best examples of why. This is a championship venue built to expose every weakness when the weather turns. Wind off the Irish Sea, cool temperatures, passing showers, and firm-running links turf can transform the same hole from manageable to brutal in a matter of hours.

Royal Birkdale tends to reward control, patience, and the ability to handle crosswinds. Fairways framed by dunes offer some protection visually, but the exposed nature of the property still allows wind to dictate shot shape and trajectory. If the week turns rough, with steady gusts and intermittent rain, par becomes a very good score. If conditions are unusually calm, elite ball-strikers may have more opportunities to separate. But this is still The Open — and at Birkdale, weather is almost always the biggest storyline before the first round even begins.

3M Open — TPC Twin Cities, Blaine, MN (July 23–26)

TPC Twin Cities is another event where summer weather can create a split personality. In calm, humid conditions, this tournament can produce a flood of birdies. The course is generous enough off the tee for aggressive players to take advantage, and if rain softens the surfaces, the winning score can move deep under par.

But Minnesota summer also brings volatility. Afternoon thunderstorms are common, and when wind kicks up across this relatively open property, it becomes much harder to control approach shots — especially with water hazards lurking on several holes. Like the John Deere, this is usually a scoring week, but the difference between a soft, calm setup and a breezy, stop-start weather week can be several shots on the winning number.

Rocket Classic — Detroit Golf Club, Detroit, MI (July 30–Aug. 2)

Detroit Golf Club has built a reputation as a place where players can go low, and weather is a big reason why. In a typical late-July setup, warm temperatures and receptive fairways allow aggressive play, especially from players who are sharp with wedges and comfortable making a lot of birdies. If the course catches rain early in the week, it becomes even more attackable.

The biggest weather concern here is the same as much of the Midwest in midsummer: heat, humidity, and thunderstorms. Delays can disrupt rhythm, and soft conditions after rain can turn the event into a full-on putting contest. Wind is less dramatic here than at the links events earlier in the month, but it can still matter enough to make a lower-scoring venue play a little firmer and more strategic. In most years, though, if the weather stays cooperative, Detroit Golf Club gives players plenty of chances to post numbers.

The Bigger Picture

July’s weather story is really two stories. First, you have the American summer stretch — John Deere, 3M, and Rocket — where heat, humidity, and thunderstorm patterns can create soft, scoreable golf and occasional draw advantages. Then you cross the Atlantic for the Scottish Open and The Open Championship, where wind becomes the defining variable and shotmaking matters more than raw scoring power.

That contrast makes July one of the best months for forecast-based golf betting. In the U.S. events, weather helps determine how low the winning score might go and whether one tee-time wave catches better conditions. In Scotland and England, weather can define the entire tournament. If you’re looking for an edge, this is the month to pay close attention to Tuesday and Wednesday forecast updates — especially wind direction, gust speeds, and storm timing.

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How Weather Affects PGA Tour Scoring

The relationship between weather and scoring on the PGA Tour has been studied extensively by analytics platforms and DFS operators over the past decade. The findings are consistent and actionable.

Wind Speed and Scoring: The Quantified Impact

At wind speeds under 10 mph, PGA Tour conditions are considered essentially neutral. Most elite players can flight the ball and control distance without meaningful adjustment. Between 10 and 15 mph, scoring averages begin to creep upward, roughly 0.3 to 0.5 strokes above calm-day baselines. The effect accelerates significantly above 15 mph. Sustained winds in the 20 to 25 mph range typically add 1.0 to 1.8 strokes to the field average at most Tour venues. Above 25 mph, the course effectively plays to its maximum difficulty, and the advantage shifts dramatically to players with low, penetrating ball flights and elite wedge control.

Wind direction matters as much as wind speed. Crosswinds are generally harder to manage than headwinds or tailwinds, because they require a consistent shape into the wind that many players can’t reliably execute under pressure. Tee-to-green stat leaders in crosswind conditions often differ markedly from calm-day leaders. Our wind direction indicator in the forecast table helps you identify when crosswind conditions are likely.

Rain and Soft Conditions: The Counterintuitive Truth

Light-to-moderate rain during a PGA Tour round is not necessarily bad for scoring. Soft fairways and receptive greens remove the need for distance precision. A player who misses a fairway by 10 yards on a dry week faces brutal lies and limited run-up options, but on a wet week, the rough is manageable, and the ball stops where it lands. Scoring averages in light rain are often comparable to or better than in calm, dry conditions.

Heavy rain and standing water are different. Lift, clean, and place conditions, where players can pick up their ball and place it in a preferred lie, create a scoring environment that’s notoriously difficult to model and can produce unusually low scores. The course softness index in our tool tracks the cumulative precipitation expectation per round so you can assess these scenarios in advance.

Temperature and Altitude: The Underrated Factors

Cold temperatures affect ball distance more than most recreational golfers realize. Every 10°F drop in temperature reduces carry distance by approximately 1-2 yards for the average Tour player. At 50°F, a player who normally carries the ball 300 yards off the tee might carry it 295. This compresses the advantage of big hitters and closes the gap between length and accuracy. Par-5 birdie rates drop meaningfully when temperatures fall below 55°F because players who normally reach in two are suddenly laying up. For betting, cold-weather weeks tend to favor accurate, strategic players over pure bombers.

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