isobar-cli 1.3.2

A terminal weather tool with industrial aesthetic, focusing on Real Feel and Windchill.

Isobar CLI

A terminal weather tool designed to provide a fast, clean sense of what the weather feels like outside; right now and for the week ahead. Built with Python and Rich.

Philosophy

Isobar CLI answers a simple question: "What does it feel like outside right now, and do I need a jacket?"

Most weather apps overwhelm with data. Isobar strips away everything except what matters when deciding how to prepare for the day.

Design Principles

• Essential over comprehensive — Show Real Feel, not 47 data points.
• Terminal-native — Built for quick checks within a developer workflow.
• Zero friction — No API keys or configuration files required.
• Information density — Industrial dashboard UI for maximum readability.
• Intentional features — Each feature must answer: "Does this help someone understand what it feels like outside?"
• Distinctive aesthetic — Retro-futuristic industrial styling that avoids generic "AI slop"

✨ Features

• Industrial Aesthetic — Retro-futuristic weather observatory dashboard with brutalist styling 🏭
• Auto-Location — isobar detects the city automatically 🌍
• Weather Condition Icons — WMO-standard emoji + plain-English description (☀️ Clear sky, 🌨️ Moderate snow, ⛈️ Thunderstorm)
• Real Feel — Apparent temperature metrics (what it actually feels like).
• Air Quality Index — US AQI with health classifications 😷
• 7-Day Forecast — Full week outlook with color-coded highs/lows and daily rain %
• Hourly Outlook — Next 12 hours of temperature and rain chance (--hourly)
• Multiple Cities — Compare weather across several cities side-by-side.
• Smart Suggestions — Fuzzy city name matching if there is a typo.
• Shell Completion — Tab-complete city names based on search history.
• Dynamic Timezone — Sunrise/sunset shown in the city's local time, not yours.
• Precipitation Forecast — Next 6h rain/snow chance and totals.
• Smart Caching — 15-minute cache per city (~/.cache/isobar/)
• Color-Coded Temps — Intuitive color mapping for temperature ranges.
• Metric Support — --metric or -m for Celsius, km/h, and mm.
• No API Keys — Free Open-Meteo and ip-api.com.
• Zero Config — Works instantly after installation.
• Visual Gauges — Temperature and humidity gauge visualizations 📊
• Severity Indicators — Weather condition severity icons (⚡, ▲, ●, ○, ◇)
• Wind Categories — Descriptive wind speed classifications (CALM, LIGHT, GENTLE, etc.)
• Industrial Styling — Heavy borders, uppercase labels, status columns
• Phase 7: Intuition & Analysis — Higher-level context and automated insights:
  • Preparation Guidance — Clothing and gear suggestions with priority levels 🧥☂️🧴
  • Temporal Context — Comparison with previous day conditions 📈
  • UV Index Monitoring — Sun protection guidance with intensity levels ☀️
  • Wind Gust Alerts — Highlighting of significant gust events 💨⚠️
  • Home City Persistence — Set a default city with isobar home "Your City" 🏠 (Note: Due to a Typer limitation, this currently shows weather for "Home, Kansas" instead of setting home city. Manual config editing required.)

🚀 Installation

The recommended way to install Isobar is via pipx:

pipx install isobar-cli

Installation is also supported via Homebrew:

brew install KnowOneActual/tap/isobar

Note: Installing via Homebrew builds several high-performance dependencies (like numpy and h3) from source. This ensures a robust, isolated install but may take 5-10 minutes to complete.

Alternatively, install directly from PyPI:

pip install isobar-cli

Or install from source:

git clone https://github.com/KnowOneActual/isobar-cli.git
cd isobar-cli
pip install .

📱 Usage

# Auto-detect location
isobar

# Specify a city
isobar Chicago
isobar London Tokyo Paris     # Multiple cities
isobar "New York"             # Use quotes for multi-word cities

# Hourly outlook (next 12h)
isobar --hourly Chicago
isobar -H Chicago

# 7-day forecast
isobar --forecast Chicago
isobar -f Chicago

# Note: Flags must come before city names
# ✅ isobar -H Chicago
# ❌ isobar Chicago -H  (treats "-H" as a city name)
isobar "San Francisco" --forecast
isobar -f Sydney

# Metric units (Celsius, km/h, mm)
isobar --metric
isobar -m
isobar Tokyo -m

# Home city management
isobar home "New York"    # Set home city
isobar home               # Show current home city
isobar home --clear       # Clear home city
isobar                    # Uses home city if set (otherwise auto-detects)

⚙️ Configuration

Isobar supports configuration via environment variables for advanced use cases:

API Endpoint Configuration

Customize API endpoints for different weather providers or testing:

# Use custom weather APIs
export ISOBAR_GEOCODING_URL="https://custom-geocoding-api.example.com/v1/search"
export ISOBAR_WEATHER_URL="https://custom-weather-api.example.com/v1/forecast"
export ISOBAR_AQI_URL="https://custom-aqi-api.example.com/v1/air-quality"

# Run with custom endpoints
isobar "New York"

Timezone Support

For enhanced timezone accuracy (optional):

# Install optional timezone support
pip install isobar-cli[timezone]

# Sunrise/sunset will now display in local timezone
isobar London

Debug Mode

Enable debug logging to stderr:

# View API errors and debugging information
isobar "Test City" 2> debug.log

⌨️ Shell Completion

Isobar supports tab-completion for city names. To enable it for a shell:

Zsh:

isobar --install-completion zsh

Bash:

isobar --install-completion bash

(Note: A terminal restart may be required after installation).

🖥️ Example Output

Industrial Aesthetic (v1.3.0+)

┌─ WEATHER OBSERVATORY ─┐
CHICAGO
┌─────┬──────────────────────┬────────────────┬────────────────┐
│     │ METRIC               │ READING        │ STATUS         │
├─────┼──────────────────────┼────────────────┼────────────────┤
│ ☀️  │ CONDITIONS           │ MAINLY CLEAR   │ ◇              │
│ 🌡️  │ TEMPERATURE          │ 75.2°F         │ [███░░░░░░░]   │
│ 🤔  │ REAL FEEL            │ 78.5°F         │ ▲ 3.3°F        │
│ 💨  │ WIND SPEED           │ 12.4 mph       │ GENTLE         │
│ 💧  │ HUMIDITY             │ 65%            │ [▓▓▓░░]        │
│ 😷  │ AIR QUALITY          │ 45             │ GOOD ◇         │
│ ☔  │ PRECIPITATION         │ 30% (6h)       │ [▓░░]          │
│     │ FORECAST             │ LIGHT RAIN LIKELY │               │
│ 🌅  │ SUNRISE              │ 06:29          │ DAWN           │
│ 🌇  │ SUNSET               │ 17:37          │ DUSK           │
│ ☀️  │ UV INDEX             │ 6.5            │ HIGH ☀️☀️☀️     │
│ ⚡  │ GUST ALERT           │ 25 mph         │ ⚠️ SEVERE       │
└─────┴──────────────────────┴────────────────┴────────────────┘

┌─ TREND ANALYSIS ─┐
↑ 5.2°F WARMER THAN YESTERDAY
└──────────────────┘

┌─ PREPARATION PROTOCOL ─┐
  ⚠️  HIGH PRIORITY
    ▶ Wind gusts up to 25 mph - secure loose items
  ▲  RECOMMENDED
    ▶ Light jacket recommended
    ▶ Sunscreen recommended (UV: High)
  ○  ADVISORY
    ▶ Sunglasses recommended for glare
└─────────────────────────┘

┌─ FORECAST PANEL ─┐
CHICAGO
┌──────┬──┬────────────────────┬───────┬───────┬───────┬────────┐
│ DAY  │  │ CONDITIONS         │ HIGH  │ LOW   │ RAIN% │ STATUS │
├──────┼──┼────────────────────┼───────┼───────┼───────┼────────┤
│ TODAY│☀️│ MAINLY CLEAR       │ 78.7°F│ 63.9°F│ 30%   │ ○      │
│ TUE  │⛅│ PARTLY CLOUDY      │ 82.4°F│ 65.4°F│ 20%   │ ○      │
│ WED  │🌦️│ LIGHT DRIZZLE      │ 76.8°F│ 60.9°F│ 45%   │ ●      │
│ THU  │☀️│ CLEAR SKY          │ 80.3°F│ 63.5°F│ 10%   │ ○      │
└──────┴──┴────────────────────┴───────┴───────┴───────┴────────┘

## 🛠 Tech Stack

| Tool | Purpose |
|---|---|
| [Typer](https://typer.tiangolo.com/) | CLI framework |
| [Rich](https://github.com/Textualize/rich) | Terminal UI |
| [Open-Meteo](https://open-meteo.com/) | Weather and forecast data |
| [ipwho.is](https://ipwho.is/) | Auto-location detection |
| [timezonefinder](https://github.com/jannikmi/timezonefinder) | Dynamic timezone resolution |
| [pytest](https://docs.pytest.org/) | Unit testing framework |
| [requests-mock](https://requests-mock.readthedocs.io/) | API testing |
| [Ruff](https://docs.astral.sh/ruff/) | Linting and formatting |
| [pip-audit](https://github.com/pypa/pip-audit) | Dependency security scanning |
| **Phase 7 Features** | **Intuition & Analysis** |
| `config.py` | Persistent home city configuration |
| Enhanced `logic.py` | Preparation guidance, UV monitoring, gust alerts |
| Updated `ui.py` | Contextual display of insights |
| **v1.2.0 Features** | **Security & Configuration** |
| Configurable API Endpoints | Environment variable support for custom APIs |
| Enhanced Error Handling | Specific exception catching with timeouts |
| Timezone Support | Optional `pytz` dependency for local time display |
| **v1.3.0 Features** | **Industrial Aesthetic** |
| Industrial UI Design | Retro-futuristic weather observatory dashboard |
| Visual Gauges | Temperature and humidity gauge visualizations |
| Severity Indicators | Weather condition severity classification |
| Enhanced Typography | Heavy borders, uppercase labels, status columns |

## 🔒 Security

Security is a fundamental priority for Isobar CLI. Multiple layers of automated scanning ensure the tool remains safe and secure for all users.

### Security Measures
- **Vulnerability Scanning:** [Trivy](https://github.com/aquasecurity/trivy) scans the filesystem and dependencies for known vulnerabilities.
- **Static Analysis (SAST):** [Bandit](https://github.com/PyCQA/bandit) and [Semgrep](https://semgrep.dev/) analyze the code for insecure patterns.
- **Dependency Auditing:** [pip-audit](https://github.com/pypa/pip-audit) and GitHub Dependabot ensure third-party packages stay updated.
- **Script Linting:** [ShellCheck](https://www.shellcheck.net/) enforces best practices for Bash scripts.
- **Secret Scanning:** Automated checks prevent the accidental commitment of sensitive credentials.

All security scans are integrated into the CI/CD pipeline and run on every push, pull request, and weekly schedule. Results are available via the GitHub Security tab.

## 📈 Project Status

✅ **Phase 1 Complete** — Caching and Auto-Location  
✅ **Phase 2 Complete** — Precipitation, Sunrise/Sunset, and Condition Icons  
✅ **Phase 3 Complete** — 7-Day Forecast, Dynamic Timezone, and UI Refinements  
✅ **Phase 4 Complete** — Quality & Trust (Security, CI/CD)  
✅ **Phase 5 Complete** — Testing & Reliability  
✅ **Phase 6 Complete** — Distribution (PyPI, Homebrew)  
✅ **Phase 7 Complete** — Intuition & Analysis (v1.1.0)  
✅ **v1.2.0 Complete** — Security & Configuration Enhancements  
Refer to [ROADMAP.md](ROADMAP.md) and [CHANGELOG.md](CHANGELOG.md) for details.

## 🤝 Contributing

Detailed instructions are available in [CONTRIBUTING.md](CONTRIBUTING.md). New features must answer: **"Does this help someone understand what it feels like outside?"**

## 📄 License

MIT. See [LICENSE](LICENSE).