Thursday 5 November 2026

Mushrooms in Boissy-sous-Saint-Yon

Today, hedgehog mushrooms are the best bet around Boissy-sous-Saint-Yon (64/100, favourable). Département: Essonne · altitude 93 m.

Boissy-sous-Saint-Yon is a municipality (3 882 inhabitants), at an altitude of 93 m (département: Essonne, 91). On Thursday 5 November 2026, conditions are favourable for: hedgehog mushrooms (64/100) and parasol mushrooms (56/100). For hedgehog mushrooms, conditions remain stable, with a maximum on Thursday 5 November 2026 (64/100). Terrain: likely trees around the municipality (sessile oak and sweet chestnut), slightly acidic soil. Weather: 0 mm of rain fell over the last 8 days, 10 mm of rain is expected over the next 7 days, minimum temperatures range from 1 to 12 °C.

Open on the map

35/ 100

Ceps

Possible

14/ 100

Chanterelles

Unfavourable

0/ 100

Morels

Unfavourable

64/ 100

Hedgehog mushrooms

Favourable

51/ 100

Black trumpets

Possible

5/ 100

Funnel chanterelles

Unfavourable

45/ 100

Wood blewits

Possible

25/ 100

Saffron milk caps

Unlikely

56/ 100

Parasol mushrooms

Favourable

8-day forecast

Ceps

35Thu 5

33Fri 6

29Sat 7

25Sun 8

23Mon 9

24Tue 10

25Wed 11

26Thu 12

Chanterelles

14Thu 5

12Fri 6

10Sat 7

8Sun 8

7Mon 9

9Tue 10

10Wed 11

11Thu 12

Morels

0Thu 5

0Fri 6

0Sat 7

0Sun 8

0Mon 9

0Tue 10

0Wed 11

0Thu 12

Hedgehog mushrooms

64Thu 5

64Fri 6

63Sat 7

60Sun 8

59Mon 9

64Tue 10

64Wed 11

64Thu 12

Black trumpets

51Thu 5

51Fri 6

50Sat 7

50Sun 8

49Mon 9

49Tue 10

48Wed 11

50Thu 12

Funnel chanterelles

5Thu 5

5Fri 6

5Sat 7

5Sun 8

5Mon 9

5Tue 10

5Wed 11

6Thu 12

Wood blewits

45Thu 5

44Fri 6

44Sat 7

44Sun 8

44Mon 9

43Tue 10

43Wed 11

44Thu 12

Saffron milk caps

25Thu 5

24Fri 6

22Sat 7

21Sun 8

20Mon 9

20Tue 10

19Wed 11

18Thu 12

Parasol mushrooms

56Thu 5

56Fri 6

52Sat 7

49Sun 8

46Mon 9

49Tue 10

53Wed 11

56Thu 12

Forests and soils around Boissy-sous-Saint-Yon

The terrain

Likely trees: sessile oak, sweet chestnut
Soil: slightly acidic (pH 6.4), balanced
Slope: 1°

Habitat by species

Ceps	53	fine forest nearby with suitable host trees: sessile oak, pedunculate oak, downy oak
Chanterelles	33	fine forest nearby with suitable host trees: sessile oak, sweet chestnut, pedunculate oak
Morels	38	fine forest nearby with suitable host trees
Hedgehog mushrooms	44	forest nearby, partly suitable tree species
Black trumpets	64	fine forest nearby with suitable host trees: sessile oak, sweet chestnut, pedunculate oak
Funnel chanterelles	6	forest nearby, partly suitable tree species
Wood blewits	49	fine forest nearby with suitable host trees: sessile oak, sweet chestnut, pedunculate oak
Saffron milk caps	15	forest nearby, partly suitable tree species
Parasol mushrooms	57	fine forest nearby with suitable host trees

Recent and forecast weather

Day	Min	Max	Rain	Air humidity	Soil moisture
Thu 29	2 °C	15 °C	0.0 mm	88 %	20 %
Fri 30	3 °C	15 °C	0.0 mm	84 %	19 %
Sat 31	3 °C	15 °C	0.0 mm	83 %	18 %
Sun 1	4 °C	14 °C	0.0 mm	79 %	16 %
Mon 2	7 °C	12 °C	0.0 mm	87 %	16 %
Tue 3	6 °C	9 °C	0.2 mm	78 %	17 %
Wed 4	5 °C	10 °C	0.0 mm	70 %	17 %
Thu 5 forecast	2 °C	11 °C	0.1 mm	81 %	17 %
Fri 6 forecast	4 °C	14 °C	0.0 mm	84 %	16 %
Sat 7 forecast	1 °C	10 °C	0.0 mm	95 %	17 %
Sun 8 forecast	4 °C	6 °C	0.0 mm	98 %	17 %
Mon 9 forecast	4 °C	13 °C	0.1 mm	89 %	17 %
Tue 10 forecast	12 °C	15 °C	1.8 mm	88 %	18 %
Wed 11 forecast	12 °C	17 °C	6.8 mm	91 %	22 %
Thu 12 forecast	10 °C	17 °C	1.1 mm	93 %	35 %

Temperatures corrected for the altitude of the municipality. Source: Open-Meteo.

Going further

Mushrooms in Essonne · All départements · Ranking of départements · How the score is calculated

Neighbouring municipalities

Sainte-Geneviève-des-Bois · Brétigny-sur-Orge · Saint-Michel-sur-Orge · Morsang-sur-Orge · Arpajon · Saint-Germain-lès-Arpajon · Épinay-sur-Orge · Montlhéry