Daily guide · AT · 2026-08-20
The week in temperature at Austria's settlement station
All numbers computed from the week's published auction results at publication and frozen — this article is an honest snapshot, not a page that rewrites itself. Reproduce via the API.
At Wien-Schwechat, the week ran warm throughout, averaging 2.9 degrees above normal. The standout was a mid-week heat spike: from 30 degrees on 14 August the maximum jumped to 34 on the 15th and 35 on the 16th, the hottest day of the week at 8.3 degrees above the seasonal normal of 26.7. That reading fell just short of the local 99th-percentile mark of 35.5, and no day this week qualified as near-record.
The heat broke sharply. After the 35-degree peak, temperatures fell to 29 on 17 August and to 23 on the 18th, the only below-normal day at 3.5 degrees under seasonal. By the 19th the station was back to 29, a return to the warm baseline that defined most of the period.
For the reader, the signal is that this was a warm week driven by a brief, intense pulse rather than a sustained extreme. Tomorrow's forecast from volt-temp-4 centres on 28.3 degrees, with the 28 and 29 buckets together carrying roughly 71 percent of the probability. Plan around the high-20s, and treat a fresh push toward the mid-30s as unlikely near-term.
Daily temperature markets don't settle on "the weather" — they settle on the finalized daily maximum at Wien-Schwechat (LOWW), one specific gauge. Here's what that gauge actually did this week, against the 35-year normal for each calendar day — ground truth for anyone analyzing Vienna temperature markets.
+2.9°C
average anomaly vs the 35-year day normal this week
35°C
week's highest daily max (2026-08-16)
0
days at or above the day-of-year P99
The week, day by day
| Day | Observed Tmax | 35y normal | Anomaly | Day P99 |
|---|---|---|---|---|
| 2026-08-12 | 28° | 26.9° | +1.1° | 35.9° |
| 2026-08-13 | 29° | 26.9° | +2.1° | 35.7° |
| 2026-08-14 | 30° | 26.9° | +3.1° | 35.7° |
| 2026-08-15 | 34° | 26.8° | +7.2° | 35.7° |
| 2026-08-16 | 35° | 26.7° | +8.3° | 35.5° |
| 2026-08-17 | 29° | 26.6° | +2.4° | 35.4° |
| 2026-08-18 | 23° | 26.5° | -3.5° | 35.2° |
| 2026-08-19 | 29° | 26.5° | +2.5° | 35.2° |
Observed values from METAR (the same ASOS feed settlement pages display); normals and P99 from NOAA ISD, 15-day windowed, leap-stable day mapping.
Tomorrow's distribution
28.3° P50 · volt-temp-4
P10 26.8° · P90 29°
The full product behind this page: per-station probability distributions in the exact 1°C buckets markets trade, D+1 to D+5, verified against METAR daily — plus the resolution-station registry (gauges change; Paris did in April 2026) and CME degree-day settle projections. That's the station-temperature capability included in Scale. Analytics only — never wagering advice.
Method & citation. Prices are hourly means of published day-ahead auction results (native 15-minute periods averaged; ENTSO-E/SMARD, attributed). Wholesale-price component only — grid fees and taxes come on top and vary by supplier. Cite as "Voltcast Research, voltcast.com/guides/station-week-at-2026-08-20".
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