Free Weather Tools

Six free sky tools that share one location: a 7-day weather forecast, UV index, live US weather alerts, a hurricane tracker, today's moon phase, and sunrise & sunset times. Forecast, UV and alerts use free public APIs; Moon and Sun run offline. No sign-up.

Free

Weather Forecast

Current conditions and a 7-day outlook for any city or your location — temperature, feels-like, humidity, wind and rain chance. Powered by Open-Meteo.

Open tool Free

UV Index

Current UV index, hourly UV and a 3-day outlook.

Open tool Free

Weather Alerts

Active US warnings near you — winter storm, extreme heat and cold, red flag fire, flood and severe storm alerts. Live from the National Weather Service.

Open tool Free

Hurricane Tracker

Official NHC forecast track and cone for active Atlantic and Eastern Pacific storms, plus a plain-English guide to spaghetti models and hurricane categories.

Open tool Free

Moon Phase

Today's phase with illumination percentage, the next full and new moon, optional moonrise/moonset, and a 30-day phase calendar. Pure astronomy, works offline.

Open tool Free

Sun Times

Sunrise, sunset, solar noon, golden hour and day length for any location, plus this year's solstices and equinoxes. Pure astronomy, works offline.

Open tool
Reference tablesMoon phase calendar, sunrise & sunset by city, weather codes & upcoming eclipses.

One Sky, Six Tools

Each tool does one job well, and they share the same simple location picker.

1

Plan the week

Open the Weather Forecast for current conditions and a 7-day outlook for any city or your location.

2

Check for warnings

Open Weather Alerts for active US warnings near you — winter storm, extreme heat and cold, red flag fire, flood and severe storms, straight from the National Weather Service.

3

Check the moon

Use the Moon Phase tool for tonight's phase and illumination — no location needed. Add a city for moonrise and moonset.

4

Track the sun

Open Sun Times for sunrise, sunset, golden hour and day length, plus the solstices and equinoxes. New to it all? Browse the LK Forge guides.

Frequently Asked Questions

What is the LK Forge Weather suite?
Six free, browser-based sky tools that share one location: a Weather Forecast, a UV Index, Weather Alerts, a Hurricane Tracker, Moon Phase, and Sun Times. The forecast and UV index (Open-Meteo), alerts (US National Weather Service) and hurricane tracker (US National Hurricane Center) use free public APIs for live data; Moon and Sun are pure astronomy maths that run entirely in your browser and work offline. None require a sign-up. For why a focused set like this can be worth reaching for over the weather app that ships with your phone, see weather tools beyond your default app.
Which tools work offline?
Moon Phase and Sun Times work fully offline once loaded, because they compute everything locally from astronomy formulas. The Weather Forecast needs a connection because it requests live data from Open-Meteo for your chosen location.
Do I need to share my location?
It depends on the tool. The moon phase is identical everywhere, so it needs no location. Sun times and the forecast need a place — search for a city or use your device location. For the forecast those coordinates go to Open-Meteo; for sun times only the maths runs in your browser.