Is it good to paint in Oklahoma City, OK this week?
A live 7-day go/no-go calendar for exterior paint in Oklahoma City, built from the local forecast against the 5°F-above-dew-point rule. We lead with the signal a weather app misses: overnight condensation risk.
- Dew margin
- 1.8°F
- Overnight dew
- High
- Rain
- 58%
- Window
- —
High condensation risk overnight — surface dips to within 1.8°F of the 71°F dew point (low 69°F, 100% cloud, 9 mph wind). A fresh paint can blush/blister. Stop 4h before dew falls.
- Dew margin
- 0.3°F
- Overnight dew
- High
- Rain
- 52%
- Window
- —
High condensation risk overnight — surface dips to within 0.3°F of the 65°F dew point (low 65°F, 100% cloud, 9 mph wind). A fresh paint can blush/blister. Stop 4h before dew falls.
- Dew margin
- 3°F
- Overnight dew
- Watch
- Rain
- 34%
- Window
- —
Humidity peaks at 96% — well above the 85% ceiling; cure stalls and moisture gets trapped.
- Dew margin
- -2.6°F
- Overnight dew
- High
- Rain
- 17%
- Window
- —
High condensation risk overnight — surface dips to within -2.6°F of the 63°F dew point (low 61°F, 5% cloud, 7 mph wind). A fresh paint can blush/blister. Stop 4h before dew falls.
- Dew margin
- -3°F
- Overnight dew
- High
- Rain
- 4%
- Window
- —
High condensation risk overnight — surface dips to within -3°F of the 57°F dew point (low 54°F, 0% cloud, 10 mph wind). A fresh paint can blush/blister. Stop 4h before dew falls.
- Dew margin
- -5.9°F
- Overnight dew
- High
- Rain
- 2%
- Window
- —
High condensation risk overnight — surface dips to within -5.9°F of the 50°F dew point (low 43°F, 37% cloud, 8 mph wind). A fresh paint can blush/blister. Stop 4h before dew falls.
- Dew margin
- 14°F
- Overnight dew
- Low
- Rain
- 4%
- Window
- 9am–5pm
Clear to paint: temps 62–79°F, RH under 67%, surface stays 14°F+ above the dew point, no rain in the cure window.
- High condensation risk overnight — surface dips to within 1.8°F of the 71°F dew point (low 69°F, 100% cloud, 9 mph wind). A fresh paint can blush/blister. Stop 4h before dew falls.
- Rain likely in the 24h cure window (58% chance, ~1.1mm) — it can wash out or mar an uncured paint.
- Hot afternoon (85°F, ceiling 85°F) — paint early and follow the shade.
- High humidity (89%, over the 85% mark) slows drying — keep an eye on the cure window.
Hold off. These are forecast numbers — confirm the surface temperature on-site before you start.
Why these thresholds
Overnight dew condensing on a fresh coat causes blistering, surfactant leaching and peeling — the cause of 40%+ of exterior paint failures.
- • Surface temp must stay 5°F above the dew point through application and cure (ASTM D3276 / ISO 8502-42).
- • Air + surface in the 50–85°F band (low-temp lines to 35°F).
- • Humidity under 85%; ideally under 70%.
- • No rain for 24h after application.
- • We use the forecast ground-surface temperature as a surface-temp proxy — confirm on-site with an IR thermometer.
Free in the beta
Watch this job site 24/7
Get an email the moment overnight dew, rain, or an out-of-range stretch threatens a fresh coat — and a morning digest with the best window ahead. No app to check; we watch the forecast for you.