Forecast history you can audit

The intraday forecast log NWS doesn't keep.

We capture every issuance, match to the official daily high, and surface a bias-corrected nowcast that improves as the day evolves.

Explore the live log Why it's different

Central Park, NY — Today

Latest forecast
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Today's Forecasts MEMBERS
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Nowcast MEMBERS
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Outstanding results and outcomes

We meet traders and weather nerds where they are — with history, accuracy, and full visibility.

Faster intraday clarity

Every update logged and ranked so you spot the most accurate pre-high issuance in seconds.

Higher right-first-try picks

Outcome-based scoring shows which issuance historically nails the day's high.

Cleaner decisions, less noise

Bias-corrected nowcast reduces the guesswork while the day is still unfolding.

Closed-loop visibility

Full trail from issuance → official high, so you can audit every move end-to-end.

Demo Preview

Today's Latest Forecast
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Today's Forecasts MEMBERS
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Today's Actual High
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NWS daily CLI report
Today's High So Far / Current
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as of — ET • station —
Current: —
Tomorrow's Forecast
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Days Tracked
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Days With Actual
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Average Absolute Error
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Average Best Error
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Temperature Trends: Actual vs Predicted

Actual High Best Forecast (pre-high)
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Today's Bias-Corrected Nowcast MEMBERS
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Tomorrow's Bias-Corrected Nowcast MEMBERS
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How it works

Unlock the full intraday trail — accuracy rankings, nowcasts, and more.

Only $3/month or $30/year. Get in early.

Try Free for 3 Days Try for $3 Monthly Try for $30 Yearly

Who built this?

A data guy who traded Kalshi's NYC daily high. I wanted to see every update, test accuracy, and predict the high in advance. Built for me; shared because it's useful — and fun.