OpenWeatherMap

@OpenWeatherMap what's the current weather in Seattle and should I bring an umbrella today?

Current conditions in Seattle, WA: 52°F (11°C), overcast clouds with 85% humidity. Wind from the southwest at 8 mph. No precipitation currently, but forecast shows light rain likely within 3 hours. Yes, bring an umbrella — there's a 70% chance of rain this afternoon with expected accumulation of 0.1-0.2 inches.

This example shows basic weather lookup with AI interpretation. The MCP returns raw weather data (temperature, conditions, forecast); the AI translates it into actionable advice. Requires a free OpenWeatherMap API key. Default queries use metric units unless specified otherwise in the prompt.

@OpenWeatherMap compare temperatures in Tokyo, London, and São Paulo right now

Current temperatures across three cities: Tokyo is 68°F (20°C) with clear skies and low humidity — pleasant spring conditions. London sits at 45°F (7°C) under partly cloudy skies with moderate wind. São Paulo is warmest at 77°F (25°C) with scattered clouds and higher humidity typical of late summer. Tokyo and São Paulo are experiencing comfortable weather; London is notably cooler.

Demonstrates multi-location queries in a single prompt. The MCP fetches current conditions for each city independently; the AI synthesizes the comparison. Response time scales with number of locations queried. Free-tier API keys allow 60 calls per minute, so batch requests like this stay well within limits.

@OpenWeatherMap get the 5-day forecast for Denver and flag any days where outdoor construction work might be risky

Denver 5-day forecast summary: Days 1-2 show clear skies, temps 55-62°F — good working conditions. Day 3: Risk flagged — afternoon thunderstorms likely (80% chance) with potential wind gusts to 35 mph; recommend indoor tasks or early shift. Day 4: Clearing, but morning temps near freezing (34°F) could affect materials. Day 5: Clear and mild, 58°F. Overall, plan around Day 3's storm window.

Shows forecast retrieval with domain-specific AI reasoning. The MCP provides multi-day weather data; the AI applies construction-safety logic based on precipitation, wind, and temperature thresholds. Forecast accuracy decreases beyond 3 days. This workflow works for any industry-specific weather planning (events, agriculture, logistics).

When weather data belongs in your dispatch workflow

A 6-person HVAC company routes technicians across three counties. They use Switchy to check tomorrow's forecast before assigning outdoor installs—roof units in freezing rain get bumped, attic work in 95° heat moves to morning slots. The OpenWeatherMap MCP gives you current conditions and a 5-day outlook in one query, no API wrangling. It's fast enough for daily planning but not granular enough for hour-by-hour rerouting (you'd need a paid tier for that). If your team makes go/no-go calls based on temperature, precipitation, or wind speed more than twice a week, this MCP saves the context-switch to a weather app. Add it to your workspace and treat it like a reference tool, not a decision engine.

Why this MCP works for small-scale event prep

A 3-person nonprofit runs quarterly outdoor fundraisers. Two weeks out, they check the forecast in Switchy to decide on tent rentals and backup venue holds. The Weather Info tool pulls data for any city by name, so they query the event location without leaving the planning thread. OpenWeatherMap's free tier covers the 5-day window they need, though it won't give you hourly breakdowns or severe-weather alerts (you'd monitor those separately). This MCP is overkill if you only run one event a year, but if you're coordinating logistics for recurring outdoor work—markets, shoots, installations—it keeps weather context in the same workspace as your runbooks and vendor lists. No separate tab, no screenshot pasting.

When to skip this MCP for trip coordination

A 10-person remote startup books quarterly offsites. Someone suggests adding the OpenWeatherMap MCP to check destination weather during venue research. Don't. The single Weather Info tool gives you a snapshot, but trip planning needs comparisons across dates, locations, and historical averages—work better suited to a browser tab or a dedicated travel app. You'd end up running the same query five times and manually tracking results. This MCP shines when weather is a binary input (safe to work outside: yes/no), not when you're optimizing across variables. If your team only references weather occasionally and the stakes are low, save the workspace slot for an MCP that handles a higher-frequency task.