Is it good to stain in Idaho Falls, ID this week?
A live 7-day go/no-go calendar for deck & fence stain in Idaho Falls, 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
- 25.8°F
- Overnight dew
- Low
- Rain
- 6%
- Window
- 8am–5pm
Hot afternoon (93°F, ceiling 90°F) — stain early and follow the shade.
- Dew margin
- 19.2°F
- Overnight dew
- Low
- Rain
- 39%
- Window
- 8am–5pm
Some rain risk (39%) during the cure window — re-check the radar before you start.
- Dew margin
- 4.5°F
- Overnight dew
- Watch
- Rain
- 69%
- Window
- —
Rain likely in the 24h cure window (69% chance, ~2.1mm) — it can wash out or mar an uncured stain.
- Dew margin
- 7.1°F
- Overnight dew
- Low
- Rain
- 52%
- Window
- —
Some rain risk (52%) during the cure window — re-check the radar before you start.
- Dew margin
- 19°F
- Overnight dew
- Low
- Rain
- 18%
- Window
- 8am–5pm
Hot afternoon (90°F, ceiling 90°F) — stain early and follow the shade.
- Dew margin
- 10.7°F
- Overnight dew
- Low
- Rain
- 5%
- Window
- 8am–5pm
Hot afternoon (95°F, ceiling 90°F) — stain early and follow the shade.
- Dew margin
- 21.8°F
- Overnight dew
- Low
- Rain
- 7%
- Window
- 8am–5pm
Hot afternoon (94°F, ceiling 90°F) — stain early and follow the shade.
- Hot afternoon (93°F, ceiling 90°F) — stain early and follow the shade.
Caution. These are forecast numbers — confirm the surface temperature on-site before you start.
Why these thresholds
Stain applied to a damp or dew-wet board can't penetrate — it beads, stays tacky and flakes. Wood must be dry and stay above the dew point while it sets.
- • Surface temp must stay 5°F above the dew point through application and cure (ASTM D3276 / ISO 8502-42).
- • Air + surface in the 50–90°F band (low-temp lines to 45°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.
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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.