AgWeatherNet review
Free crop and irrigation tools pair with station-based forecasts and paid API data.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
AgWeatherNet is a Washington State University service that collects weather observations and provides site-specific forecasts and decision-support tools for crop, human, and animal health. Its free tools are aimed at growers who need weather context for field decisions, including crop development, cold-hardiness, disease risk, irrigation, and spray timing. The service is focused on the Pacific Northwest, so growers elsewhere should consider whether that regional focus fits their operations.
The agricultural toolset spans crop phenology and growing-degree-day calculations, cold-hardiness and infection-risk models, crop-water demand and irrigation scheduling, spray guidance, and worker heat awareness. Growers can browse a public station network or connect private weather stations and farm sensing networks for farm- and block-level monitoring. This breadth makes AgWeatherNet relevant to operations that want several weather-informed decisions in one service, rather than a narrow forecast-only tool. Decision-support tools are free to registered users.
Raw station data and API access follow a separate data-access policy. The available API tiers cover daily summary, hourly, 15-minute, and 5-minute data from 100+ stations; the listed starting rate is 15 for API station data, not for the free decision-support tools. The pricing table labels rates monthly while describing the subscription as annual, and setup and annual admin fees also apply. Growers seeking free crop and irrigation guidance with optional station-data access may find the split useful; those looking for a service outside the Pacific Northwest or wanting raw data without separate API charges should compare alternatives.
AgWeatherNet pros and cons
- Where it wins
- Free registered-user tools cover crop risk, irrigation, and spray guidance
- Farm- and block-level monitoring can include private sensing networks
- API access offers daily, hourly, 15-minute, and 5-minute data
- Where it doesn't
- The service is focused on the Pacific Northwest
- Raw station data and API access are separate from the free tools
- API subscriptions have setup and annual admin fees
AgWeatherNet fact sheet, pricing and score →
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