Brolly: A Plain-Text Weather Forecast Site on Show HN
28 Jul 2026
A weather site with no chrome, just text
A new Show HN submission is making the rounds: Brolly, a plain-text weather forecast site. No maps, no animated icons, no ad units—just a straightforward readout of current conditions and a same-day forecast, rendered as text on a page.
The screenshot shared with the submission shows a forecast page with a timestamp noting the data was last fetched at 22:00. Beyond that timestamp, there's no indication of how often the data refreshes going forward.
What's on the page
At the moment captured in the report, Brolly displayed:
- Current temperature: 17.6°C
- Current wind: 8 mph, gusting to 15 mph
- Current UV index: 0.0
- Current air quality index: 20
- Today's temperature range: 15–22°C
- Today's average wind: 11 mph, gusting to 22 mph
- Today's precipitation: 0.1mm
- Peak UV index: 3.55 (moderate), expected at 11:00
- Peak air quality: 25 (fair), expected at 11:00
- Current grass pollen level: 9.6 (medium)
- Current mugwort pollen level: 3.9 (low)
That's a fairly granular data set for a tool built around simplicity—covering not just temperature and wind but also UV exposure and two pollen categories, metrics that matter to health- and outdoor-activity-conscious users.
What's missing
The report is notably thin on context beyond the numbers themselves. There's no information on:
- Who built Brolly or what tech stack powers it
- Where the underlying weather data comes from
- Site traffic, adoption, or how the Hacker News community has received it
- Any pricing or monetization plan
- Which city or region the sample forecast represents
These gaps matter. Without knowing the data provider, there's no way to verify the accuracy or reliability of the metrics shown—a single-source risk that any user relying on Brolly for real decisions (like UV exposure planning) should keep in mind. Similarly, the single fetch timestamp gives no assurance about how consistently the data updates.
Why founders should care
Brolly is a small project, but it's a useful data point for founders thinking about product positioning:
- Minimalism as a feature, not a limitation. The plain-text format likely appeals to a niche of users who want fast-loading, distraction-free interfaces—suggesting that stripped-down UX can still find an audience, even in a category as visually saturated as weather apps.
- Text-first design may suit developer and power-user workflows. A format like this could plausibly integrate well with scripts, terminal environments, or low-bandwidth contexts, which is likely to resonate with a technical audience such as Hacker News readers.
- Granular health-adjacent data could be a differentiator. By surfacing UV index and pollen levels alongside standard weather metrics, Brolly hints at an opportunity for founders to build tools targeted at users who care about sun exposure or allergies—an underserved niche relative to mainstream weather apps.
- No visible business model is worth studying, not dismissing. The absence of stated pricing or monetization is consistent with an early-stage, possibly community-driven project. Founders exploring similar tools may find it worthwhile to watch how (or whether) Brolly builds an audience before monetizing, since organic, community-first growth is one plausible path for simple utility products.
The bottom line
Brolly is a compact example of a broader pattern: simple, single-purpose tools that trade visual polish for speed and clarity. It's too early to say whether it will gain traction beyond its Show HN debut, but its data-forward, no-frills approach—and the inclusion of health-relevant metrics like UV and pollen—offers a small but concrete case study for founders weighing minimalism against feature completeness in their own products.