The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Weather for Grown Ups listing page.
Weather is the hello-world of agent tools. WFG is for when “temperature tomorrow” stops being enough.
One query language for operational NWP: global and regional models, deterministic and ensemble forecasts, physics and AI, current runs and history.
Ask the same atmospheric question across models without flattening what makes the models different.
Requires Node.js 20+.
For repeated use:
Normal atmospheric access is four orthogonal choices:
Change the dataset; keep the question. Unsupported combinations fail rather than being coerced into fake symmetry.
Read the unified atmospheric API →
Start with the question. Let the agent build the forecast investigation from scratch.
What does the atmosphere over Prague look like tomorrow afternoon? Cover the surface and vertical structure, compare the main global guidance, and show which parts are robust across the ensembles.
GFS + IFS → pressure profiles → GEFS + IFS ENS → regional model if useful
Is a frontal passage expected near Prague tomorrow? If so, when does it arrive, what changes through the column, and how consistent are the models?
GFS + IFS → time evolution → pressure profiles → GEFS + IFS ENS → align latest vs previous runs
How do AIFS and IFS describe the atmosphere over Prague tomorrow? Where do they disagree through time and height, and is that disagreement large relative to their ensemble uncertainty?
align IFS, AIFS → pressure profiles → align IFS ENS, AIFS ENS
I’m planning to paraglide around Bassano tomorrow. How does the convective window develop through the day, what do the wind profile and stability look like, and how robust is the picture across ensembles and global/regional guidance?
profiles → parcel diagnostics → wind through the column → time evolution → ensembles → global + regional models
What did GFS predict three days ago for Prague today, and how well did that forecast verify?
archived forecast → analysis / radiosonde → error → lead provenance
Explore the investigation gallery →
GFS · GEFS · AIGFS · AIGEFS · HGEFS · IFS · IFS ENS · AIFS · AIFS ENS · ICON-D2 · ICON-D2-EPS · AROME · PE-AROME · GFS analysis · GEFSv12 reforecast
Capabilities come from the catalog. Native grids, cadence, domains, members, fields and provenance remain explicit.
WFG exposes the same core through CLI and MCP.
Shell available → CLI.
No shell / remote → MCP.
Add the portable WFG skill, then pick a setup guide: Codex · Claude Code · Hermes · OpenClaw · other agents
Examples · Installation · API contract · Catalog · History · Architecture · All docs
MIT. See LICENSE.