Updated 11 September 2026
Slippery Jack in Västernorrland, Sweden: live forecast and 14-day outlook
This week’s slippery jack forecast for Västernorrland, Sweden reads 53% and looking good. The 14-day outlook decides whether to go now or wait, so check https://shroomcast.net/forecast/slippery-jack-forecast-for-vasternorrland-sweden/ before you set out
It fruits after warm late-summer and autumn rain, typically when day temperatures sit around 10 to 20C and the ground stays damp. A good soaking followed by mild nights usually brings flushes within a week or two.
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.
Västernorrland rises from the indented Gulf of Bothnia shoreline into rugged, forested uplands cut by the broad river valleys of the Ångermanälven and Indalsälven. Its coast is famous for the High Coast (Höga Kusten), where steep hills and skerries climb from the sea thanks to the world’s fastest post-glacial land uplift. This is boreal taiga country, dominated by Norway spruce and Scots pine mixed with birch and aspen. The richest mushroom ground is in older spruce forest, mossy pine heaths, and the damp birch and bog margins along the valleys.
The climate is humid and continental, with long cold snowy winters and short cool summers. Rain is common in late summer and early autumn, keeping the forest floor reliably moist for fungi. Foragers can expect classic Nordic woodland species, with chanterelles, porcini and other boletes flourishing in spruce and pine stands. Forests are vast and lightly trafficked, and Sweden’s right of public access (allemansrätten) makes them open to walk and pick.
FAQ
Where do slippery jack grow in Västernorrland, Sweden?
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. They tend to come back to the same kinds of ground year after year, so once you find good cover it is worth checking again. ShroomCast does not share exact spots; it tells you the timing for Västernorrland, Sweden so you know when it is worth heading out.
How do I know slippery jack season has started in Västernorrland, Sweden?
Season usually kicks off after a warm spell followed by steady rain, with the first flushes appearing somewhere in the August to November window. The clearest sign is the live forecast lifting off zero into ‘just starting’ or ‘building’. For Västernorrland, Sweden it currently sits at 53% and is looking good.
Are slippery jack out near me right now in Västernorrland, Sweden?
Today the slippery jack forecast for Västernorrland, Sweden is 53% and conditions are looking good. That is a live read for the region this September, and it shifts with the weather rather than following a fixed calendar. It tells you if it is worth heading out in Västernorrland, Sweden right now.
What should I look for this week for slippery jack in Västernorrland, Sweden?
This week in Västernorrland, Sweden the forecast is 53% and looking good. 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 Västernorrland, Sweden right now?
For slippery jack in Västernorrland, Sweden, the typical season is August to November, and today the live forecast reads 53% with conditions looking good this September. So yes or no depends on the day and the weather, which is exactly what the forecast tracks.
See the live regional forecast in the ShroomCast app.
This page shows today. The app gives you the full 14-day outlook for your area and all 14 species, so you can pick the right day before you drive out.
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.
ShroomCast forecasts the region and the time of year. It cannot identify mushrooms for you, so confirm any species with a reliable source before eating it.