WorkWindow

Outdoor Project Weather in Boise, ID

This page runs Boise'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: 164 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 — Sep, Jun, May Stain a Deck in Boise →
Exterior Painting — Sep, Jun, May Paint Outside in Boise →
Driveway Sealing — Jun, Sep, Aug Seal a Driveway in Boise →
Concrete Pouring — Sep, Jun, May Pour Concrete in Boise →
Roof Coating — Sep, Jun, May Coat a Roof in Boise →
Lawn Seeding — May, Oct, Apr Seed a Lawn in Boise →

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for BOISE AIR TERMINAL, ID US. Darker = more workable days.
TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deck Staining 0 0 0 9 23 25 4 12 26 16 0 0
Exterior Painting 0 0 0 9 23 25 4 12 26 16 0 0
Driveway Sealing 0 0 0 0 5 25 4 12 21 0 0 0
Concrete Pouring 0 0 0 9 23 25 4 12 26 16 0 0
Roof Coating 0 0 0 9 23 25 4 12 26 16 0 0
Lawn Seeding 0 0 16 30 31 25 0 0 28 31 3 0

Season edges differ by task — that's the point of checking six at once. In Boise the earliest opener starts around March and the last holdout closes after September. 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 — Boise's longest season at 164 workable days.

Full 10-day checks

Idaho

Climatology: NOAA 1991–2020 normals via BOISE AIR TERMINAL, ID US (3.8 km from Boise center); live outlook by Open-Meteo.