Will it frost this week?
Type your postcode and you get the next seven overnight minimums for your area, each one flagged for frost. It uses the same forecast the rest of the site runs on. Nothing to sign up for.
Enter a postcode to see the next seven forecast minimums.
| Day | Min | Risk |
|---|
A forecast minimum is measured at screen height in the open. On a still, clear night the ground and any low leaves sit 2 to 4 degrees colder than that, so treat anything at 4°C or under as a night to cover seedlings, and anything at 2°C or under as a frost night.
What to do with the answer
Frost settles on the coldest, stillest, clearest nights, so a forecast minimum of 2°C in the open can easily mean ice on your low leaves. Tender crops (tomato, capsicum, basil, beans, cucumber, zucchini, pumpkin) are the ones to protect. Brassicas, peas, broad beans, garlic and onions shrug it off. A sheet of shade cloth, an old bed sheet or an upturned pot over seedlings before dark is enough for a light frost. Take it off in the morning.
What this page is not
This is a seven day forecast, not a last frost date table. We do not yet hold a frost date climatology per postcode. For the planting side, the planting guides are written per climate zone and already hold planting windows that keep tender crops clear of the usual frost months. Find your zone on the grow zone map.