Growing Britain

Weather for growers. Frost, soil, sowing windows and watering, read from the same open forecast data the professionals use, translated for the plot.

Choose a location to load your plot forecast. Nothing is stored anywhere except this browser.

Now on the plot

Current conditions for your selected location, anchored to observations.

–°C

Waiting for a location…

Observation based
Feels like–
Soil temp (6 cm)–
Wind–
Gusts–
Humidity–
Rain last hour–
Observation basedSoil modelled

Frost watch

Air frost kills tender crops. Ground frost can still nip seedlings on clear, calm nights even when the air stays above zero. This panel reads the next ten nights.

❄

Reading the nights ahead…

Load a location to check frost risk.

ForecastInterpretation: ground frost flagged when nights fall to 4°C or below

Next 48 hours

Sowing, watering and fleece decisions live in this window. Rain chance above 60% is highlighted.

TimeTempSoil 6 cmRain %Rain mmWindGust
Waiting for data…
Forecast · Open-Meteo UK-led blend

Ten days ahead

Confidence fades with distance. Treat days one to three as plannable, days four to seven as a steer, and beyond that as weather gossip.

Waiting for data…

ForecastFrost-marked cards show nights at 4°C or below

Soil & sowing

Seed packets talk dates. Seeds respond to soil temperature. The dial shows modelled soil temperature at 6 cm against the thresholds common crops germinate at. A soil thermometer in your own bed always beats the model.

Modelled at 6 cm depthThresholds: horticultural reference

What will germinate now

Waiting for soil data…

Watering balance

The next seven days of forecast rain, set against what the ground is expected to lose to evaporation and plant use (reference evapotranspiration). A deficit means the watering can earns its keep.

Waiting for data…
Forecast rain Expected loss (ET₀)

ForecastInterpretation: containers and greenhouses always need more than this suggests

On the plot this week

Adjustments generated from the forecast above. Each one says why it appears. When the weather is kind, this list stays short on purpose.

Waiting for data…

This month

General UK lowland timings. Northern and upland plots typically run two to three weeks later, sheltered southern and coastal plots earlier. Your own frost record beats any calendar.

Horticultural reference

Data & honesty

Where this comes from

Forecasts, soil temperature, soil moisture and evapotranspiration come from Open-Meteo (CC BY 4.0), using a UK-led blend of UKMO and ECMWF model output. Place search uses the Open-Meteo geocoder, postcode lookup uses postcodes.io. Everything runs in your browser with no keys and no accounts.

What this will never do

This tool separates observation, forecast and interpretation, and it never fabricates data it does not have. For severe weather decisions always use the Met Office warnings service. For flooding use the Environment Agency, SEPA or Natural Resources Wales.