Alta weather
Loading live data…Clear,much the same tomorrow
NWS, the American and the European model agree on a high near 53° in Alta today. Tomorrow: clear, around 55°, with a 0% chance of rain.
Latest for Alta: NWS (National Blend (NBM)): 40° Clear · American (NOAA GFS): 41° Clear · European (ECMWF): 40° Clear.
CheckWeather.io on iPhoneFree. No ads, no account.Alta weather alerts and warnings
active National Weather Service watches, warnings and advisoriesChecking the National Weather Service for active alerts covering Alta…
Alta weather in numbers
from 30 years of measured normalsAlta swings 58°F across the year, from 73°F highs in July to 15°F lows in January, and January is usually the wettest month in a year that brings about 47 in of precipitation.
The weather map: all three models at once
NWS, American, European side by side around Alta and nearby towns.Live rain radar →Alta hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
Alta 10-day forecast, out to 14 days
where the models agree, and where they splitAlta, Utah (UT) is at its warmest in Jul (average highs near 73°F) and coldest in Jan (lows around 15°F), with roughly 47 in of precipitation across the year. Below, compare what NWS, American, European forecast for Alta right now, and see exactly where they disagree.
We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.
Alta climate by month
average daytime high and overnight low across a typical year (1991-2020)Source: 1991-2020 normals, Alta (NOAA).
How the weather around Alta has changed since 1995
Alta sits in the same roughly 50 km square of NASA's reanalysis as West Valley City. That square ran 1.1°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the West Valley City page.
Which forecast is most accurate in the US?
CheckWeather Score, graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.
What do you think of the forecasts?
your vote countsThe accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.
One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
Where the models disagree
temperature and rain, judged separatelyThe models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.