Toto on my home weather station

Language models predict the next token. What if you could predict the future with the same technology?

Live readings from my Ecowitt GW3000 gateway + WS90 7-in-1 sensor, plus a probabilistic forecast from Datadog's Toto 2.0 (22M), compared against the NWS hourly forecast, with a scoreboard tracking who's been more accurate.

☀️ Live now

📅 Weekly forecast

Past 5 days · 48h forecast (5-min display, Toto fed hourly)

🆚 Toto vs NWS — near-term forecast

🔄 Live data + forecast auto-refresh every 15 minutes.

📊 Results

🔧 How it's made