Seattle July 6 High Temp: Can 80-81°F Hold at 35%?

Seattle’s weather on July 6 is a genuinely open question right now. The 80-81°F band leads this multi-outcome market at 35%, but the data doesn’t care about the politics of which range traders prefer. With a resolution deadline of noon local time on July 6, the Pacific Northwest’s notoriously variable summer pattern leaves real probability spread across at least five adjacent temperature bands.

The market asks: what will Seattle’s highest temperature be on July 6, 2026? The 80-81°F outcome trades at $0.35 YES and $0.65 NO, reflecting a 35% implied probability. Total volume sits at $5,397, all of it traded in the last 24 hours. Resolution closes at noon on July 6.

How the 80-81°F Contract Works

YES pays out if Seattle’s official high temperature on July 6 lands between 80°F and 81°F inclusive. NO pays if the high falls anywhere outside that two-degree band. The resolution source follows the market’s designated weather data provider for Seattle.

• YES ($0.35): Seattle’s July 6 high is 80°F or 81°F exactly.
• NO ($0.65): Seattle’s high on July 6 falls below 80°F or above 81°F.

The NO contract wins whenever temperatures run cooler than 80°F or hotter than 82°F. Seattle’s July climate is genuinely wide-ranging. Marine pushes from Puget Sound can cap highs in the mid-70s, while inland heat events can spike readings into the upper 80s or low 90s. A two-degree window is a narrow target in that context.

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Momentum and Market Signals

The momentum composite here is modest but directional. The 80-81°F band gained 2.5% in the last hour, against a trend score of 50.24, suggesting mild upward pressure with no strong conviction signal. The most likely driver is short-range forecast model updates, which typically sharpen in the 48 to 72 hours before a Pacific Northwest summer day.

Total volume is $5,397, with all of it arriving in the last 24 hours. Liquidity at $42,784 is healthy relative to volume, meaning this market can absorb moderate position changes without wild price swings. Volume below $1M means a single informed trader with a fresh weather model could move prices sharply before the July 6 noon resolution.

• The 80-81°F band at 35% leads the field but commands only a plurality, not a majority, of market confidence.
• The 1h gain of 2.5% aligns with afternoon Pacific Northwest forecast model runs that typically update around this hour.
• Thin total volume ($5,397) means this market is sensitive to new information, particularly National Weather Service forecast updates for Seattle.
• The 78-79°F and 82-83°F bands are the most logical adjacent competitors; their combined implied probability likely rivals the leading band.
• No whale trades are present. Every dollar here reflects retail or semi-professional weather market participants.

Lines Analysis: What the Seattle Forecast Is Actually Saying

Here’s what the measurements are telling us: July 6 falls inside Seattle’s warmest month, when the city averages highs around 75-77°F. A reading of 80-81°F would sit meaningfully above average but well below the heat event threshold. That makes it a plausible but not default outcome. National Weather Service forecast guidance for early July 2026 in the Pacific Northwest will be the single most important data input before resolution.

The NO side wins across the widest possible range of outcomes. Temperatures below 80°F, which is still above Seattle’s July average, cover several outcome bands with real probability. If a marine layer strengthens overnight into July 5-6, highs could easily land in the 74-79°F range. Conversely, if the region sits under a persistent high-pressure ridge, readings above 82°F become credible. The two-degree window is the market’s biggest structural vulnerability.

• National Weather Service Seattle: any forecast update pushing the July 6 high above 82°F or below 79°F would deflate the 80-81°F band sharply.
• Marine layer reports from Puget Sound buoys and overnight coastal data will signal whether a cooling push is arriving before July 6 morning.
• Upper-level ridge strength over the Pacific Northwest: a deepening ridge favors the higher bands (84°F and above); a weakening ridge favors the lower bands.
• GFS and European model agreement on July 6 highs: when both models converge, the market tends to follow quickly.
• Seattle-Tacoma International Airport temperature observations on July 5 will anchor the baseline for July 6 expectations.

The market is pricing uncertainty, not science. With $5,397 in total volume and a multi-outcome structure spread across more than ten bands, the 35% leader reflects genuine meteorological ambiguity, not a settled forecast. The data slightly favors warmer-than-average conditions for early July in the Pacific Northwest in 2026, but a two-degree band is a narrow bet in any Pacific marine climate.

LINES VERDICT

LEADING BAND IN A WIDE FIELD

The 80-81°F range holds the plurality position in a genuinely open weather market, but a two-degree window against a dozen competing outcomes is a structurally narrow target for Seattle’s variable July pattern.

What the market says: At 35% implied probability, traders see this band as the most likely single outcome but assign a collective 65% chance to every other temperature range. With less than 48 hours to resolution at noon on July 6, any new National Weather Service forecast update could reprice this market immediately.

Key unknown: The single most important input is the National Weather Service’s July 5 afternoon forecast for Seattle-Tacoma, particularly the predicted high and any marine layer advisories. A one or two degree shift in that guidance would redistribute probability across adjacent bands instantly.