Have you ever opened the Weather app on your iPhone and been greeted by a series of mysterious icons? While the sleek interface and minimalist design of Apple’s Weather app are appreciated by many, the icons themselves can leave users guessing exactly what kind of weather to expect. Understanding these icons isn’t just useful — it can help you plan your day more effectively and even take precautions in severe conditions. Let’s dive into the meanings behind these symbols so you can navigate your local forecast like a pro.
Understanding the Basic Weather Icons
The iPhone Weather app uses a variety of icons to convey different types of weather. These icons are styled to be intuitive, but the smallest ambiguity can be confusing. Here’s what the most common ones mean:
- Sun: A simple sun icon means it’s going to be a clear and sunny day.
- Cloud: A plain grey cloud stands for overcast skies with no precipitation.
- Sun Behind Cloud: This represents partly cloudy or mostly sunny weather – expect a mix of clouds and sunshine.
- Cloud with Rain: Indicates light or moderate rain showers throughout the day.
- Thunderstorm: A cloud with lightning (sometimes rain) implies thunderstorms are likely. Take precautions!
- Cloud with Snowflake: Get ready for snowfall – anything from flurries to steady snow.

More Specialized Icons and What They Signal
Aside from the everyday icons, there are more specialized symbols that appear in certain conditions:
- Moon with Stars: A clear night is in store — expect no clouds to block stargazing.
- Cloud with Moon: A partly cloudy night, similar to the „Sun Behind Cloud“ icon but for nighttime.
- Fog or Mist: Denoted by a blurry cloud or lines, this icon warns of low visibility, especially in the early morning or late evening.
- Wind: Displays a swirling symbol or lines that look like motion – ideal if you’re checking for windy conditions during outdoor plans.
- Snowflake with Rain Drop: This mixed precipitation icon means sleet or freezing rain – watch out for slippery roads!
These icons are designed to be both aesthetic and practical, providing vital information at a glance as they change throughout the day when checking the hourly forecast.
Looking Closer at Hourly & Weekly Forecasts
The iPhone Weather app doesn’t just show symbols for the current conditions. When scrolling through the hourly forecast, you’ll notice that each hour has a corresponding icon. These change to reflect expected weather updates down to the hour — so you might see a sunny icon at noon shift to a thunderstorm icon by 3 PM.
Similarly, the weekly forecast also features these symbols to represent the overall expected conditions each day. While shorter daily summaries can’t show every variation in the weather, the icon shown typically reflects the most significant or dominant weather for that day.

What About the Colors and Animation?
Beyond simple icons, the Weather app adds another layer of meaning with colors and even animations. Bright blue skies with a bright background reflect sunny days, while grayer hues can suggest clouds, rain, or overcast conditions. Some icons even animate when you tap to expand a forecast or scroll through the timeline, offering visual cues that correspond with real-time forecasts. These design elements are not just for show — they aim to convey weather moods and urgency.
Warnings and Alerts
In some cases, Apple pairs weather icons with important alerts. If you see a triangle with an exclamation point or receive a red banner notification on the Weather app, it’s signaling severe weather conditions, such as extreme heat, snowstorms, or flood warnings.
Clicking on these alerts will offer detailed text explanations, which may include recommendations for safety or preparations.
Making the Most of the Icons
The key to effectively using the Weather app lies in understanding these symbols not just in isolation, but in the context of time, geographic location, and seasonal expectations. Combined with temperature readings, chance of precipitation, and wind speeds, these icons can help you:
- Decide whether to carry an umbrella or sunglasses
- Know when to wear layers or stay inside
- Plan outings, travel routes, or outdoor events

Next time you open your iPhone’s Weather app, take a moment to really look at the icons. You’ll no longer have to guess whether those rolling clouds mean a light drizzle or a coming storm. With this insight, you’re well on your way to becoming your own weather expert — or at least the most prepared person in your group!