Know the forecast without checking the forecast.
Set a temperature line for any zip code — current or forecast, above or below. Netletz checks hourly and texts you the first time it crosses. Cover the tomatoes the day before the frost, not the morning of.
- Current conditions OR 7-day forecast
- Any US zip, plus most of the world
- Above or below, your number
- One text per crossing — never spam
Forecast shows 34°F overnight in Austin — first freeze of the season. Cover the plants.
Location. Threshold. Direction.
Pick a location
Zip code or city. NWS for US current conditions, Open-Meteo for forecasts — public meteorological data, not a third-party app's marketing skin.
Set the line
Above or below, current or forecast. Examples: "below 34°F overnight in 78704", "above 100°F current in Phoenix", "morning low between 50 and 60 in Boulder".
Get the heads-up
SMS the first time a forecast hour or a current reading crosses your line. Once per crossing, then waits to re-arm.
Plain English. Actually useful.
34°F overnight in Austin
First freeze — cover the plants
102°F current in Phoenix
Above your 100° heat-wave line
Low of 52°F tomorrow in Boulder
Perfect run weather — your 50–60 window
Common questions
Pay for the things you'd hate to miss.
One missed flight deal or sold-out campsite costs more than a year of Pro. Start free — upgrade the moment Netletz saves you the price.
Free
Catch one thing you'd otherwise miss.
- 1 Watcher — try it on the thing that bugs you most
- Hourly checks (good enough for most prices & listings)
- Push + in-app alerts so you never miss it
- Every data source unlocked — flights, camping, weather, AI page-watcher…
Pro
For the handful of things that always seem to slip through.
- 5 active Watchers — delete & reuse as often as you want
- 5-min checks beat almost everyone else to the drop
- SMS + push the second it hits — phone in pocket = fine
- Discord / Slack / webhooks — pipe alerts anywhere
- Priority support from a real human
Power
When 'first in line' is worth real money.
- 15 active Watchers — delete & reuse as often as you want
- 1-minute checks — the difference between sold-out and booked
- AI page-watcher reads any page in plain English
- Priority polling queue (your watchers go first)
- Every alert channel: SMS, push, email, webhooks
Prices in USD. Cancel anytime. Taxes calculated and handled automatically.
Beat the freeze. Beat the heat.
Set a temperature watcher in 30 seconds. The next time the line is crossed, your phone tells you.