Mushroom Forecast

Mushroom forecast near Grinnell, IA

As of 2026-09-29, 0 forest patches within 30 km of Grinnell, IA show ≥60% fruiting probability; the highest today is 50% (Honey mushroom).

Fruiting probability (0–100%) is forecast daily for each forest patch based on weather and forest data. Locations are given as distance and direction from the center of Grinnell.

Top forest patches within 30 km — 2026-09-29

More forest patches farther out (up to 50 km)

Probabilities beyond 30 km are available in the app.

Days 3–15 outlook

See every patch on the map. The free Mushroom Forecast app shows today's and tomorrow's forecast within 30 km of you; upgrade for all distances and up to 15 days. Download on the App Store

Frequently asked questions

Can I find mushrooms near Grinnell right now?

As of 2026-09-29, 0 forest patches within 30 km of Grinnell, IA show ≥60% fruiting probability; the highest today is 50% (Honey mushroom). Of 588 forest patches within 30 km, the highest fruiting probability today is 50%.

What mushrooms are fruiting near Grinnell?

Forecast for 2026-09-29 within 30 km: Hen of the woods (up to 50%), Lion's mane (up to 50%), Lobster mushroom (up to 50%), Honey mushroom (up to 50%), Chicken of the woods (up to 44%), Indigo milk cap (up to 29%), King bolete (up to 15%), Pacific golden chanterelle (up to 6%).

Where is the best forest patch near Grinnell today?

The top-ranked patch is 11 km W of the city center, with a 50% fruiting probability for Hen of the woods.

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