Forecast Check — weather from the most accurate model icon

Forecast Check — weather from the most accurate model

by Aspan Labs · News & Weather
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Forecasts from nine weather models, checked against your nearest weather station. Temperature in the toolbar.

Users
7
store count
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
total ratings
Store rank
#226K
#189K among extensions
Version
0.1.4
updated 12 Oct 2026

About Forecast Check — weather from the most accurate model

Which weather forecast is right where you live? Forecast Check shows the forecast from nine global weather models, including a new AI model, and checks each of them against reality. For every hour of the last two weeks it compares what each model predicted the day before with what the nearest airport weather station actually measured, and ranks the models by their average error. Your main forecast then comes from the model that has been most accurate near you, not from whichever source an app happens to use. • Current temperature on the toolbar icon • Hourly forecast for 48 hours and daily forecast for 10 days • All models side by side: see where they agree and how wide the spread is • Accuracy table: average error of each model at your nearest station, and whether it tends to run warm or cold • Optional rain alert two hours ahead • Metric or imperial units, 12- or 24-hour clock; 10 interface languages No account, no ads, no tracking. Your location is stored in your browser and sent only to the weather services to get the forecast. Data: forecasts by Open-Meteo.com (CC BY 4.0), observations by the NOAA Aviation Weather Center.

Growth

WindowUsersChangeRatingsRating
7 days+5+250.0%00.00

Chrome Web Store search rankings

Where Forecast Check — weather from the most accurate model appears when people search the store, with the 30 day change
Search phrasePosition30 days
forecast#28new
model#94new

Version history

3 versions recorded
0.1.412 Oct 2026
0.1.38 Oct 2026
0.1.27 Oct 2026

Details

Category
News & Weather
First seen
7 Oct 2026
Size
64 KB
Languages
de, en, tr, es, fr, it, pl, pt-BR
Pricing
Free
Privacy policy
sazonov-p.github.io
Extension ID
mfmamdpimlneikaghkdbjefbajigbibk

Permissions and risk

Moderate riskimpact 2, likelihood 3
Permissions
storagealarmsnotificationsgeolocation
Site access
https://api.open-meteo.com/*https://previous-runs-api.open-meteo.com/*https://geocoding-api.open-meteo.com/*https://aviationweather.gov/*

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