WorkWindow

Outdoor Project Weather in Grand Rapids, MI

This page runs Grand Rapids's forecast against all six task rulesets at once. Verdicts load live above; the month-by-month matrix below — built from NOAA 1991–2020 normals — shows when each job's season opens. Lawn Seeding gets the most calendar here: 196 workable days a year.

Today at a glance

Verdicts load live from the 10-day forecast; without JavaScript this column stays blank and the year-round matrix below still answers the planning question.
TaskTodayBest months hereFull 10-day check
Deck Staining — Jul, Aug, Sep Stain a Deck in Grand Rapids →
Exterior Painting — Jul, Aug, Sep Paint Outside in Grand Rapids →
Driveway Sealing — Jul, Aug, Jun Seal a Driveway in Grand Rapids →
Concrete Pouring — Jul, Aug, Sep Pour Concrete in Grand Rapids →
Roof Coating — Jul, Aug, Sep Coat a Roof in Grand Rapids →
Lawn Seeding — May, Jul, Aug Seed a Lawn in Grand Rapids →

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for E GRAND RAPIDS, MI US. Darker = more workable days.
TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deck Staining 0 0 0 0 17 19 22 21 20 9 0 0
Exterior Painting 0 0 0 0 17 19 22 21 20 9 0 0
Driveway Sealing 0 0 0 0 4 19 22 21 12 0 0 0
Concrete Pouring 0 0 0 0 17 19 22 21 20 9 0 0
Roof Coating 0 0 0 0 17 19 22 21 20 9 0 0
Lawn Seeding 0 0 0 14 31 30 31 31 30 29 0 0

Season edges differ by task — that's the point of checking six at once. In Grand Rapids the earliest opener starts around April and the last holdout closes after October. A week that fails the paint rules on humidity can still pass seeding, and a frost that ends concrete season leaves sealing untouched until nights slip under 50°F.

If you only open one full check, make it lawn seeding — Grand Rapids's longest season at 196 workable days.

Full 10-day checks

Michigan

Climatology: NOAA 1991–2020 normals via E GRAND RAPIDS, MI US (4.4 km from Grand Rapids center); live outlook by Open-Meteo.