Monday, Jul 27
7
/100
Corn Score
❄️ Poor corn conditions on the model's read. Overnight: 50°F at Climbers Bivouac (⚠️ didn't freeze). Crater Rim overnight low: forecast 46°F. Daytime high: 67°F at Climbers Bivouac.
🌙 50°F
overnight low
☀️ 67°F
daytime high
💨 9 mph
wind
❄️ 0"
new snow
🔄 0
streak
Confidence
100%
How this score was built ⓘ
- Refreeze (× 0.5) +0.0
- Warming (× 0.3) +6.6
- Streak bonus (capped at 20) +0
- Final score 6.6 / 100
Why this score?
- Refreeze 0/100 contributed +0 pts (50% weight). Snow surface ≈ air (50°F) — sky 51% cloud, wind ×0.79, humidity ×0.00: clouds, wind, or humid air suppressed radiative cooling.
- Warming 22/100 contributed +7 pts (30% weight).
- Freeze/thaw streak is 0 days — base score (refreeze + warming) caps at 80 until a streak builds.
Condition Components
🥶 Refreeze
0/100
Air low: 50°F → surface ~50°F, Cloud: 51%, Wind: 3 mph, Dew: 53°F
☀️ Warming
22/100
High: 67°F (mush risk)
🔄 Streak
0 days
Consecutive freeze/thaw days
💨 Wind
9 mph
Max wind (mph) at Crater Rim
7-Day Outlook
Mon
Jul 27
Jul 27
7/100
Lo: 50°
Hi: 67°
Day: Sunny
Night:
Mostly Cloudy
39% cl · 2 mph · dew 54°
high conf
Tue
Jul 28
Jul 28
12/100
Lo: 53°
Hi: 63°
Day: Mostly Sunny
Night:
Mostly Clear
9% cl · 2 mph · dew 53°
high conf
Wed
Jul 29
Jul 29
6/100
Lo: 51°
Hi: 67°
Day: Sunny
Night:
Partly Cloudy
37% cl · 3 mph · dew 56°
med conf
Thu
Jul 30
Jul 30
4/100
Lo: 51°
Hi: 68°
Day: Sunny
Night:
Mostly Clear
8% cl · 3 mph · dew 50°
med conf
Fri
Jul 31
Jul 31
0/100
Lo: 54°
Hi: 73°
Day: Sunny
Night:
Mostly Clear
17% cl · 3 mph · dew 49°
med conf
Sat
Aug 1
Aug 1
8/100
Lo: 55°
Hi: 66°
Day: Sunny
Night:
Mostly Clear
4% cl · 3 mph · dew 52°
med conf
Sun
Aug 2
Aug 2
14/100
Lo: 49°
Hi: 62°
Day: Sunny
Night:
Mostly Clear
23% cl · 8 mph · dew 53°
med conf
Freeze/Thaw History
Recent Snowfall
| Day | New Snow Climbers Bivouac 3,440′ |
Est. Crater Rim ~8,300′ |
Source confidence |
SWE Δ in / 24h |
Precip in / 24h |
Depth | Low / High |
|---|---|---|---|---|---|---|---|
| Mon Jul 27 | — | — | none high | — | — | 0" | 50° / 67° |
| Sun Jul 26 | — | — | none high | — | — | 0" | 51° / 63° |
| Sat Jul 25 | — | — | none high | — | 0.3 | 0" | 50° / 56° |
| Fri Jul 24 | — | — | none high | — | — | 0" | 54° / 73° |
| Thu Jul 23 | — | — | none high | — | 0.4 | 0" | 56° / 65° |
| Wed Jul 22 | — | — | none high | — | 0.2 | 0" | 61° / 87° |
| Tue Jul 21 | — | — | none high | — | — | 0" | 67° / 83° |
| Mon Jul 20 | — | — | none high | — | — | 0" | 60° / 74° |
| Sun Jul 19 | — | — | none high | +0.00 | — | 0" | 50° / 71° |
| Sat Jul 18 | — | — | none high | +0.00 | — | 0" | 48° / 65° |
| Fri Jul 17 | — | — | none high | +0.00 | — | 0" | 47° / 62° |
| Thu Jul 16 | — | — | none high | -0.10 | 0.8 | 0" | 50° / 63° |
| Wed Jul 15 | 1.0" | ~1.5" | SWE-implied medium | +0.10 | — | 0" | 58° / 74° |
| Tue Jul 14 | — | — | none high | +0.00 | — | 0" | 57° / 74° |
| Mon Jul 13 | — | — | — low | — | — | 0" | 58° / 72° |
St. Helens Webcams view gallery →
Latest Observation
Air Temp
66.6°F
Snow Depth
None"
SWE
None"
Time
2026-07-27T12:00
Forecasts View archive →
No NWAC forecast data yet.
No UW forecast data yet.
Data Collection
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20:18