Wisconsin · Great Lakes & St. Lawrence Lowlands · hardiness zone 5b
Now
18°C · Overcast
Today
21° / 9°
Rain, 7 days
36 mm
Season
Fall · frost in ~44 d
The kindest day for transplanting there is, and the safest for sowing.
Writing your field guide — reading the forecast, the moon and the map…
Overhead · Milwaukee, Wisconsin
The two clocks nothing on the ground can argue with: the length of the day, and the phase of the moon.
The sun
12h 31m of light
Sunrise
06:31
Solar noon
12:46
Sunset
19:02
A month from now the day will be 1h 27m shorter. Enough light for steady growth.
Right now · Milwaukee, Wisconsin
Nothing here is a guess. Each of these is read from this week's forecast and this location's climate record, and each one is pushing the season one way or the other.
16.7 °C soil · 36.1 mm
Warm and damp: the fastest decay of the year. Compost cooks, leaf mould breaks down, worms work the surface — and mushrooms fruit two to seven days after a soaking rain.
Fungi and bacteria turning last season into next season's soil. The same warm, wet window that runs a compost heap also fruits the mushrooms.
36.1 mm / 7 days
36.1 mm across 5 days. About right; leave the hose coiled.
Sets the pace for everything: germination, fungal fruiting, slug nights, and how a river runs for the next three days.
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The moon
Waxing Crescent
11% lit · waxing · day 3 of 29.5
Planting by the moon: New to first quarter: sow leafy crops and anything harvested for its leaves — lettuce, spinach, brassicas, herbs.
Fishing: good — feeding peaks in the days either side of new and full, and around moonrise and moonset.
Turn of the season
Fall equinox
Sep 22 · 7 days away
About 44 days to the average first frost (Oct 28).
Next moons
44 days
Average first fall frost is around Oct 28. Nothing you sow now will finish unless it beats that.
The hard edge of the growing season. Ice inside a leaf ruptures its cells — one night ends a tomato and sweetens a parsnip.
16.7 °C
Warm enough for beans, corn, squash, cucumber and transplanted tomato and pepper. Roots run hard at this temperature.
Seeds read soil temperature, not the calendar. Six centimetres down is where the decision gets made.
12h 31m
Losing about 3 minutes of daylight a day.
The one thing weather can't change. Plants count photoperiod to decide when to bolt, bulb, flower and go dormant.
Waxing Crescent · 11%
Waxing, 3 days old. Full moon in 11 days. Fishing outlook: good.
It moves water — in the sea, in a lake's edge, and, by long tradition, in the sap of a plant. Fish feed hardest on the days around new and full.
Found near Milwaukee · September
400 species have been recorded within about 40 km of here in September, from verified public observations. These are the ones we have written up, ordered by how often they turn up.

92 records within 40 km this month

Dangerous look-alike73 records within 40 km this month


40 records within 40 km this month
Dangerous look-alike39 records within 40 km this month

37 records within 40 km this month


32 records within 40 km this month
Recorded near you this month. We have no identification guidance for these, so treat them as a list of things to go and learn — from a regional key or someone who knows them — not as a list of things to pick.
Fungi
Your woods
The commonest trees recorded nearby, most often seen first. Most of the good mushrooms are tied to a particular tree, so this is the first thing to know about a wood.
Know these first
14 species on our hazard list have been recorded near here this month, 5 of which can kill a healthy adult. Learn these before you learn anything you intend to eat.
Actaea pachypoda
Convallaria majalis
Next
Coming into season in the next month or two near Milwaukee, Wisconsin. Seasons shift a week or two with the weather, so treat these as things to keep an eye on rather than dates.
Resinous Polypore
Ischnoderma resinosum
39 records nearby
Plants

white snakeroot
Ageratina altissima
387 records nearby

New England aster
Symphyotrichum novae-angliae
375 records nearby

common jewelweed
Impatiens capensis
188 records nearby

chicory
Cichorium intybus
175 records nearby

wild carrot
Daucus carota
146 records nearby

brown-eyed Susan
Rudbeckia triloba
136 records nearby
Photographs and records from iNaturalist, used under their open licences and credited to their photographers.
Lepiota (the whole genus)
Galerina marginata
Amanita bisporigera
Solanum dulcamara
Arisaema triphyllum
Phytolacca americana
Omphalotus illudens
Toxicodendron radicans
Scleroderma citrinum
Chlorophyllum molybdites
Tricholoma equestre
Rhamnus cathartica
These are recorded within about 40 km of here in this month, from verified public observations. It is not a complete list of what is dangerous — nothing is — and a species missing from it may still be in your woods. Never eat anything identified from a photograph and a description alone.