Tabletop Weather Generator

What this generator does

Rolls weather for a tabletop session from banks covering conditions of different severity, so results range from unremarkable to session-changing.

What you'll get

This generator draws from a hand-checked list of 26 entries. Here is a spread of 6 of them, so you can see the style before you generate:

• Clear skies and still air.
• Distant thunder, no rain yet.
• Overcast and still, the kind of quiet before a storm.
• Sleet, turning to rain by afternoon.
• A hard frost that has not lifted all day.
• A thaw, turning every path to mud.

A fixed sample of the list, not a live draw — your own results are picked at random from all 26, without repeating until the list runs out. Original HEKNO-curated weather condition list for tabletop play. Last reviewed 2026-09-03.

How to use this tool

1. Press generate for a new weather condition.
2. Generate again any time for another one.

Common use cases

• Setting the scene for overland travel
• Game master improvisation
• Adding atmosphere to an outdoor encounter

How this generator works

A run of days is generated with each day's conditions drawn from the previous day's rather than independently, so a warm spell stays warm for a few days instead of alternating with frost. Persistence is the single most important property of real weather data — tomorrow resembling today is a better forecast than the seasonal average — and a table drawn independently per day is instantly recognisable as fake.

Limitations and good to know

• Conditions are drawn independently of season, region and what happened yesterday, so a run of results will not form a plausible weather pattern. Treat each roll as a fresh prompt.
• Plausible-looking data for exercises and mock-ups. It is a pattern, not a forecast, and describes no real place or date.
• Only day-to-day persistence is modelled. Real weather also has fronts, seasons and geography, none of which appear here.
• The numbers are internally consistent — temperature, rainfall and wind agree with the stated conditions — but that consistency is imposed, not derived from meteorology.