# Tomorrow.io

**Canonical:** https://apis.io/providers/tomorrow-io/  
**Website:** https://www.tomorrow.io  
**APIs profiled:** 10

Tomorrow.io is a Boston-based weather intelligence platform combining a global proprietary numerical weather model, a constellation of microsatellite weather radars, and a developer-facing v4 REST API. The platform exposes 60+ hyperlocal data layers — core weather, air quality, pollen, solar, soil, fire, flood, lightning, maritime, aviation, road — together with map tiles, severe-weather event detection, routable forecast queries, climate normals, historical archive access, customer-defined locations, named insights, and threshold-based webhook alerts. Used by airlines, on-demand logistics platforms, agriculture, energy, and the US Air Force, Tomorrow.io's API is designed for ETA-aware route planning, geofenced alerting, agentic workflows, and large-scale operational decisioning under weather risk.

## Kin Score — 66.6 / 100 (exemplar)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 66.6).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 68.3 |
| Governance | 25.0 |
| Contract Governance | 25.0 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 77.4 |
| Commercial Clarity | 84.2 |
| Access Clarity | 84.2 |

## Agent readiness — 32.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (10)

- **Tomorrow.io Historical Weather API** — Retrieve historical weather observations and monthly climate normals for any point or polygon on Earth using the same field catalog as the realtime and forecast APIs.
- **Tomorrow.io Events API** — Retrieve severe weather events, fires, floods, lightning swarms, and custom vector events affecting a point or geometry.
- **Tomorrow.io Weather on Routes API** — Retrieve weather along an arbitrary polyline of waypoints at the times each segment is expected to be traversed — powers route optimization, logistics planning, and ETA-aware ha...
- **Tomorrow.io Locations API** — Manage saved locations (points, polygons, lines) referenced by ``locationId`` across the Tomorrow.io APIs, with tag-based cohorts for fleet, customer, or asset organization.
- **Tomorrow.io Alerts API** — Create and manage threshold-based weather alerts that evaluate Tomorrow.io data layers against custom rules for linked locations and deliver notifications via webhook, email, an...
- **Tomorrow.io Insights API** — Define and manage reusable Insights — named rules combining Tomorrow.io data layers, operators, and thresholds — that power the Events and Alerts APIs.
- **Tomorrow.io Forecast API** — 1h / 1d step weather forecast for the next 14 days.
- **Tomorrow.io Maps API** — Web Mercator tile service for weather layers.
- **Tomorrow.io Realtime API** — Current weather conditions for a point or location.
- **Tomorrow.io Timelines API** — Flexible timeline retrieval across any combination of fields and timesteps.

## Agentic access (1)

- **Tomorrow Io Agentic Access** — 32 operations · 19 acting

## Security (2)

- **Tomorrow Io Authentication** — apiKey · 1 scheme
- **Tomorrow Io Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Tomorrow Io Plans Pricing**

## Use cases (10)

- **Route Optimization and Logistics** — ETA-aware weather along truck, drone, and last-mile routes to avoid storms, ice, and visibility hazards.
- **Aviation Planning** — Airline operations centers and dispatch use Tomorrow.io for icing, turbulence, low-level wind shear, and aerodrome forecasts.
- **Energy Forecasting** — Wind and solar generation forecasting, load forecasting under heat events, and outage management.
- **Agriculture** — Soil moisture, evapotranspiration, frost, and growing-degree-day analytics for farm operations.
- **Severe Weather Alerting** — Geofenced alerting for tropical storms, severe thunderstorms, hail, lightning, and flash floods.
- **Sports and Outdoor Events** — Game-day, race-day, and venue operations under lightning, heat, and precipitation risk.
- **Insurance and Climate Risk** — Historical and climate-normals data for parametric insurance pricing and physical climate risk modeling.
- **Data Science** — Bulk historical timelines for training operational decision models and backtesting weather-sensitive workflows.
- **Maritime Operations** — Wave height, swell direction, and sea-state forecasting for shipping, offshore energy, and fisheries.
- **On-Demand Platforms** — Surge demand modeling and worker-safety alerting for rideshare, delivery, and on-demand services.

## Tags

Weather, Forecast, Climate, Risk, Air Quality, Pollen, Lightning, Severe Weather, Maps, Routing, Satellite, Microsatellites, Radar, Geospatial, Alerts

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/tomorrow-io/). Scores are computed from the provider's own public artifacts under a published rubric.