Updated 28 July 2026
Slippery jack in Highland, Scotland: live forecast and 14-day outlook
Mushroom season in Highland, Scotland is building right now, with slippery jack sitting at 19% today. The typical season runs August to November, and we’re in July now
It is outside the usual season for Slippery jack, so expect only scattered finds.
Late summer through autumn, roughly August to November.
Scan the ground near any pine, especially along sandy tracks and clearings where they often appear in groups. Pick young firm caps, since older ones go soft and waterlogged, and carry them separately because the slimy cap coats everything.
Other Suillus boletes such as the larch bolete (Suillus grevillei) and weeping bolete, all of which are also edible, so there are no dangerous poisonous lookalikes. The slimy brown cap, yellow pores and ringed stem set it apart from any toxic gilled mushroom.
Highland is a vast, sparsely populated region of rugged uplands, from the Grampians and Ben Nevis to the Cairngorms, cut through by deep glens such as Glen Affric and dotted with lochs. Long sea lochs and a heavily indented Atlantic coast give way inland to sweeping peat moorland and bare mountain plateaux. Its great prize is the remnant Caledonian pinewood, native Scots pine with birch, rowan and juniper, alongside extensive conifer plantations of spruce and larch. Birch and oak woods on the glen floors, mossy stream banks and the heather moors are all productive fungal ground.
The climate is cool, oceanic and famously wet, with the western seaboard among the rainiest places in Britain and the eastern straths a little drier. This persistent damp, mild autumns and heavy mountain rainfall keep the woods and bogs reliably moist for fungi. Expect classic Scots pine country: chanterelles and ceps among the birch and pine, with hedgehog fungus and abundant boletes in a good year. Distances are long and ground can be boggy, so the reward is wild, uncrowded foraging across some of Britain’s most ancient woodland.
FAQ
What should I look for this week for slippery jack in Highland, Scotland?
This week in Highland, Scotland the forecast is 19% and building. Grows in conifer woods, almost always with pine, on sandy or poor soil and often along forest tracks and clearings. Common in young plantations and appears in groups. The 14-day outlook on the page shows whether conditions are climbing toward a flush or easing off, so you can pick your day.
Is it mushroom season in Highland, Scotland right now?
For slippery jack in Highland, Scotland, the typical season is August to November, and today the live forecast reads 19% with conditions building this July. So yes or no depends on the day and the weather, which is exactly what the forecast tracks.
Does ShroomCast tell me if a mushroom is safe to eat or identify it for me?
No. ShroomCast only forecasts timing, so it tells you when slippery jack are likely to be fruiting in Highland, Scotland. It does not identify mushrooms, and it cannot tell you whether anything you pick is safe to eat. Always confirm your own identification from a reliable source before eating anything.
How does the live slippery jack forecast for Highland, Scotland work?
We take the usual slippery jack season for Highland, Scotland (August to November) and weigh it against the weather right now and over the last few days. That gives you one live number, today 19% and building, plus a 14-day outlook and a normal-year line to compare against.
When is slippery jack season in Highland, Scotland?
In Highland, Scotland, slippery jack season usually runs August to November. The exact start shifts year to year with rain and temperature, so some years they show up early and some years late. Right now (July) the live forecast for Highland, Scotland reads 19% and conditions are building.
See the live regional forecast in the ShroomCast app.
Scale: 0-20% very low · 20-40% low · 40-60% moderate · 60-80% high · 80-100% excellent. ShroomCast forecasts fruiting probability from weather, soil, forests and years of observations – a guide, not a guarantee of finds.