Precision Agricultural
Weather Intelligence
GDD, frost risk, soil temperature and moisture, irrigation water balance and disease indicators for your exact location, built on Open-Meteo agricultural model data and ERA5 history.
Built for Agricultural Professionals
Weather intelligence tailored to your specific needs
Farmers & Crop Growers
Row crops, vegetables, orchards
- ✓GDD from your planting date (corn, soybean, wheat presets)
- ✓7-night frost risk with estimated chances
- ✓Soil temperature and moisture for planting
- ✓Irrigation water balance from FAO-56 ET
Lawn Care Professionals
Turf management and maintenance
- ✓Heat stress forecasting
- ✓GDD and soil temperature for applications
- ✓Dollar spot and brown patch indicators
- ✓Spray windows by wind and rain
Landscapers
Design, installation, maintenance
- ✓Planting windows (soil temperature + frost)
- ✓Typical and observed frost dates
- ✓Irrigation guidance
- ✓Soil temperature and moisture
Professional-Grade Agricultural Tools
Growing Degree Days (GDD)
Track accumulated heat units for crop and turf development.
- •Any base temperature
- •Presets for turf, corn, soybeans, wheat, tomatoes
- •Season to date from your planting date
- •Crop stage estimates from GDD
Frost Monitoring
See frost coming in spring and fall.
- •7-night lows with an estimated frost chance
- •Typical frost dates for your zone
- •Frosts observed this season
- •Protection checklist when frost is near
Heat Stress Forecasting
7-day heat stress forecasts to protect crops and turf.
- •Cool-season grass: 86°F default
- •Warm-season grass: 95°F default
- •Your own threshold
- •Hours above threshold from the hourly forecast
ET & Water Balance
Irrigate on real water use, not a fixed schedule.
- •FAO-56 reference ET
- •Crop coefficient adjustments
- •Last-7-day rain vs crop water use
- •Irrigation recommendations
Disease Risk Indicators
Weather-based fungal and pest pressure for turf.
- •Smith-Kerns dollar spot model
- •Leaf-wetness estimate from humidity and rain
- •Brown patch and soil-insect indicators
- •Prevention guidance
Weather Window Finder
Find windows for field operations.
- •Spray windows (your wind limit, rain-free hours)
- •Planting windows
- •Morning irrigation windows
- •Fertilizer timing
Ready for Smarter Growing?
GrowCentral Pro is included with Ultimate at $9.99/month.
Live year round, with history back to 1940.
Frequently Asked Questions
Where does GrowCentral’s weather data come from?
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GrowCentral uses Open-Meteo’s model data for your coordinates: hourly forecasts plus soil temperature, soil moisture and FAO-56 reference evapotranspiration, with the last week of model analysis for recent conditions. Season history comes from the ERA5 reanalysis (Copernicus/ECMWF), back to 1940. These are modelled values, so an on-site probe or weather station can read differently.
What is Growing Degree Days (GDD) tracking?
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GDD measures accumulated heat above a base temperature, which tracks crop and turf development better than calendar days. GrowCentral counts observed GDD from your planting date (or your zone’s typical last frost) through yesterday, shows the last 7 and 30 days, and forecasts the next week. You choose the base temperature; presets cover turf, corn, soybeans, wheat and tomatoes.
How does frost monitoring work?
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The dashboard shows forecast lows for the rest of today and the next six days, each with an estimated chance of reaching your frost threshold, flags frost risk in the next 24 hours, and compares your zone’s typical frost dates with frosts observed this season. Frost warnings appear on the dashboard and in task triggers; GrowCentral does not send push or email alerts.
What is evapotranspiration (ET) and why does it matter?
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ET is water lost from soil evaporation and plant transpiration. GrowCentral multiplies FAO-56 reference ET by your crop coefficient and compares it with actual rainfall over the last 7 days, so you water when there is a real deficit instead of on a fixed schedule.
What crops does GrowCentral Pro support?
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Any crop whose development follows heat units: set its GDD base temperature, planting date and crop coefficient. Presets cover turf, corn, soybeans, wheat and tomatoes, with typical stage markers for the field crops. The disease indicators (dollar spot, brown patch, soil insects) are turf-focused.
When is GrowCentral Pro available?
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Year round. The dashboard follows your location’s own season and hemisphere and stays live in the off-season, and historical lookups cover any range back to 1940.
What tier includes GrowCentral Pro?
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GrowCentral Pro is included with WeatherQuick Ultimate at $9.99/month, along with Snow Central Pro, lightning tracking and priority support. New subscribers get a 7-day free trial.