Should I Look for Slippery Jack in Norrbotten Yet?
🇸🇪 Norrbotten, SwedenLive forecast

Slippery Jack forecast for Norrbotten, Sweden

0%
Updated: 16 October 2026

Slippery Jack: just starting.

Norrbotten
Temperature, 14 days
2°C

Average 2°, from -5° to 8°

3 Oct16 Oct
Rain, 14 days
16mm

Rainy days: 4. Wettest: 15 Oct

3 Oct16 Oct
Trees for Slippery Jack
13,032woods
Pine100%

Share of wood area by the tree slippery jack grows with in Norrbotten

Height of the woods
65–505m

where most of them lie

400–600 m
31%
200–400 m
38%
0–200 m
30%

When is the best time to find Slippery Jack in Norrbotten?

This week’s slippery jack forecast for Norrbotten, Sweden reads 0% and just starting.

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.

Cap is chestnut to dark brown, smooth and very slimy when wet. The underside has fine pale yellow pores rather than gills, and the stem carries a distinct ring with small brown dots above it. The flesh is pale and the smell is mild.

Use fresh within a day or two as the slime makes it perish quickly; peel and clean before chilling. It dries well once peeled and de-pored, and the dried slices or powder keep for months in an airtight jar; it can also be cooked and then frozen.

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.

Sweden’s largest and northernmost county stretches from the low, island-strewn coast of the Gulf of Bothnia, across vast boreal lowlands and the broad valleys of the Lule, Kalix and Torne rivers, up to the bare alpine fells of the Scandes on the Norwegian border. Much of it lies within the Arctic Circle, a sparsely populated land of taiga, bogs and open mountain plateau. Endless taiga of Scots pine and Norway spruce dominates, mixed with birch and aspen, giving way to mountain birch forest as you climb toward the fells. Mushrooms thrive on the mossy, lichen-rich forest floor, in damp spruce stands and among the birches, while the open mires and bog margins hold their own specialities.

A harsh subarctic climate with long, cold winters and short but surprisingly warm summers under the midnight sun. Rainfall is moderate, yet steady late-summer rains and heavy morning dew keep the forest floor reliably moist for fungi. A short, intense season concentrated in August and September, when the boreal forest can yield abundant chanterelles, ceps and other prized boletes across enormous, lightly trodden expanses. Under the right of public access you can roam almost anywhere, but distances are great and you should come prepared for remote, wild terrain.

FAQ

How do I know slippery jack season has started in Norrbotten, Sweden?

The start moves from year to year with the weather, and the first flushes usually appear somewhere in the August to November window. The clearest sign is the live forecast lifting off zero into ‘just starting‘ or ‘building’. For Norrbotten, Sweden it currently sits at 0% and is just starting.

Are slippery jack out near me right now in Norrbotten, Sweden?

Today the slippery jack forecast for Norrbotten, Sweden is 0% and conditions are just starting. That is a live read for the region this October, and it shifts with the weather rather than following a fixed calendar. It tells you if it is worth heading out in Norrbotten, Sweden right now.

What should I look for this week for slippery jack in Norrbotten, Sweden?

This week in Norrbotten, Sweden the forecast is 0% and just starting. 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 in the app shows whether conditions are climbing toward a flush or easing off, so you can pick your day.

Is it mushroom season in Norrbotten, Sweden right now?

For slippery jack in Norrbotten, Sweden, the typical season is August to November, and today the live forecast reads 0% with conditions just starting this October. 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 Norrbotten, Sweden. 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 Norrbotten, Sweden work?

Every mushroom has its own machine-learning models, trained on years of mushroom records and calibrated for each region. Every day they read the weather of the last three weeks in Norrbotten, Sweden: temperature, rain, humidity, soil temperature and moisture. Together with the time of year and the kind of woods and soil there, that gives the chance of slippery jack fruiting today. Right now it is 0% and just starting. The full 14-day outlook is in the app.

When is slippery jack season in Norrbotten, Sweden?

In Norrbotten, Sweden, 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 (October) the live forecast for Norrbotten, Sweden reads 0% and conditions are just starting.

Where do slippery jack grow in Norrbotten, 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 Norrbotten, Sweden so you know when it is worth heading out.

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.

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