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City guide · Kansas

Outdoor Project Weather in Olathe, KS

This page runs Olathe'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: 172 workable days a year.

Six tasks · one forecast · Kansas

SeptemberBest overall month
Lawn SeedingFriendliest task
871 task-daysWorkable task-days/yr
6Tasks tracked
Average of all six tasks

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.
Task	Today	Best months here	Full 10-day check
Deck Staining	—	Aug, Oct, Jul	Stain a Deck in Olathe →
Exterior Painting	—	Aug, Oct, Jul	Paint Outside in Olathe →
Driveway Sealing	—	Aug, Jul, Sep	Seal a Driveway in Olathe →
Concrete Pouring	—	Aug, Oct, Jul	Pour Concrete in Olathe →
Roof Coating	—	Aug, Oct, Jul	Coat a Roof in Olathe →
Lawn Seeding	—	May, Oct, Apr	Seed a Lawn in Olathe →

City-to-city context helps: browse outdoor project weather in Lawrence, KS one stop back, or continue to Overland Park, KS’s project calendar.

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for OLATHE 3E, KS US. Darker = more workable days.
Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deck Staining	0	0	0	17	19	20	22	23	22	23	1	0
Exterior Painting	0	0	0	17	19	20	22	23	22	23	1	0
Driveway Sealing	0	0	0	0	19	20	22	23	22	5	0	0
Concrete Pouring	0	0	0	17	19	20	22	23	22	23	1	0
Roof Coating	0	0	0	17	19	20	22	23	22	23	1	0
Lawn Seeding	0	0	12	30	31	20	0	4	30	31	14	0

Which task gets the most weather in Olathe?

Lawn Seeding172days/yr
Deck Staining147days/yr
Exterior Painting147days/yr
Concrete Pouring147days/yr
Roof Coating147days/yr
Driveway Sealing111days/yr

Season edges differ by task — that's the point of checking six at once. In Olathe the earliest opener starts around March 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 — Olathe's longest season at 172 workable days.

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Full 10-day checks

Kansas

Climatology: NOAA 1991–2020 normals via OLATHE 3E, KS US (5.2 km from Olathe center); live outlook by Open-Meteo.