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Today’s window has closed — tomorrow’s call

Sealcoating weather in Des Moines today

Workable

No forecast-based stop for sealcoating across Des Moines tomorrow — but conditions call for precautions.

Back Tuesday, July 21. This is the Des Moines-wide shape · your ZIP can run different.

7aGo
8aGo
9aGo
10aGo
11aGo
12pGo
1pGo
2pGo
3pGo
4pGo

Hour-by-hour, work hours. = workable, precaution applies.

High84°Gusts25 mphRain0%

Weather changes frequently — check the latest before you commit a crew.

Every spot we forecast in Des Moines (6), by area

Central metro

Downtown Des MoinesWorkableWest Des MoinesWorkableAltoona / Pleasant HillWorkable

North metro

AnkenyWorkableJohnston / UrbandaleWorkable

South metro

IndianolaWorkable

The exact reasons behind each location's call, the next 7 days, and a fresh read every morning are what the free Sunday brief delivers to your inbox.

What's driving the tomorrow call

Hard stops

No rain, cure-window, or temperature stop detected in the forecast.

Precautions & technique

  • windy for spray sealcoat — squeegee application

Air-temperature forecast logic — verify surface conditions on site.

Tomorrow vs. a typical July in Des Moines

Tomorrow's high84°
Typical high85°
Typical low68°
Wet days / Jul~13

Source≈10-yr ERA5 reanalysis (Open-Meteo), 2015–2024

Get the full 7-day sealcoating plan for your ZIP

Your area's likely workdays, caution windows, and weather stops — with the reasons — before you schedule the crew.

Next 7 days, Des Moines-wide

TueOK
WedOK
ThuOK
FriLtd
SatOK
SunLtd
MonOK

This is the metro-wide shape. The free Sunday brief pins each day to your exact ZIP's area — with the reasons behind every caution and stop — for every trade you run.

What controls a sealcoating day in Des Moines

FactorWhy it mattersType & source
Temperature — 50°F and rising
Sealer needs to be applied at 50°F and rising and held near that for the cure — below it the coat won't set.
Hard stopSealMaster technical data sheet; Ohio DOT 401.06 laydown table
Rain-free cure window (~24 hours)
Plan roughly 24 hours of dry weather after applying. Rain inside the cure window washes the sealer off before it sets.
Hard stopSealMaster cure guidance
Dry surface & dew point
The pavement must be dry going down, and a dew point within ~5°F of the air temperature materially slows drying.
Hard stopGemSeal drying guidance; Ohio DOT dry-surface requirement
Wind (spray drift)
Sustained wind around 10+ mph makes spray application drift — a squeegee day, not a spray day.
TechniqueTrade practice (FAA P-623 qualitative)

Around Des Moines, sealcoating and paving track roughly May through September. The gate isn't the calendar — it's stringing together a 50°F-and-rising, rain-free window long enough to cure. The area's cold freeze-thaw winters and warm, humid summers is what opens and shuts that window.

Common questions

How cold is too cold to sealcoat a driveway in Des Moines?

Sealer needs to be applied at 50°F and rising and held near that through the cure — SealMaster's data sheet and Ohio DOT's laydown table both draw the line at 50°F. Below that it won't set properly.

How long before rain can you sealcoat in Des Moines?

Plan for roughly 24 hours of dry weather after applying — rain inside the cure window washes the coat off before it has set. In Des Moines, cold freeze-thaw winters and warm, humid summers is exactly why the rain-free window is the thing to time.

Can you sealcoat when it's humid or there's dew in Des Moines?

The pavement has to be dry going down, and a dew point within about 5°F of the air temperature slows drying significantly. High humidity stretches cure time — our daily call flags it.

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