Weather Strip

"Feels Like" temperature

"Feels like" estimates the effect of humidity and wind on human skin. It is shown as a shaded area above or below the standard temperature line.

A "feels like" label is displayed if the difference from the regular temperature is at least 3 degrees Fahrenheit (~1.5 °C).

If you prefer, you can set the middle readout at the top of the screen to always show the "feels like" temperature. (By default it shows humidity. Tap it to change.)

Probability of sun, clouds, rain, and snow

The amount of space taken up by each weather type represents how likely each is to occur.

At the left end of the example here, you would expect to see direct sun (top) about 20% of the time, clouds with no precipitation (middle) about 60% of the time, and snow falling (bottom) about 20% of the time. As you move towards the right, you would expect a little more sun and a transition from snow to rain (if any precipitation falls at all).

The distance from the cloud line to the baseline of the graph represents the predicted cloud cover percentage. In the unusual case that the chance of rain is higher than the cloud coverage, it means storms are moving through the area quickly enough that the probability of rain falling over the course of an hour is more than the percentage of sky actually covered by clouds.

Remember, probabilities like these are designed to be accurate over the long term. For example, if the forecast is a 50% chance of rain, it might rain that whole time or it might not rain at all — or anywhere in between — but over many time periods with that particular forecast, on average you can expect rain 50% of the time.

Amount of rain and snow

When more than a slight drizzle is expected, the forecasted precipitation amount for each hour is shown as blue bars across the bottom of the timeline. If no bars are visible, no significant accumulation is expected.

The exact number of inches (or mm) expected per hour is shown in the legend.

If the expected precipitation is snow, the bars represent the equivalent amount of meltwater, so you can compare precipitation across rain-snow transitions. Meanwhile, the legend label shows the expected snow accumulation in inches (or mm).

Slushy snow is much denser than powdery snow, so forecasted snow amounts and meltwater amounts don't always move in lock-step. For example, as the snow transitions from slushy to powdery, the rate of snow accumulation could increase even as the meltwater equivalent decreases.

Wind

Windsock graphics are shown on the timeline during any period where wind gusts are expected to reach at least 20 mph (32 km/h).

Windsocks are colored orange if the forecast has sustained winds above 30 mph (48 km/h) or gusts above 45 mph (72 km/h).

Windsocks are colored red (and in most cases, government warnings are issued) if sustained winds are above 39 mph (63 km/h) or gusts are above 57 mph (92 km/h).

Wind direction arrows

In the app settings screen, you can select an arrow-shaped indicator to show the wind speed and direction.

• The arrow points towards where the wind is coming from. (You can think of the arrow as a glider or kite that points into the oncoming wind.)
• The size of the arrow is roughly proportional to the wind speed.

Arrow wind indicators are displayed on the timeline every 3 hours regardless of wind strength.

UV Index

UV indices measure the amount of harmful ultraviolet radiation from the sun that is expected to reach the earth's surface. The US EPA has an overview of how to interpret UV Index levels from low (1) to extreme (11+).

UV index values are displayed as a colored line along the top of the hourly weather strip. An absence of color means the UV index is 0. Low UV (1-2) is shown as very light orange. Moderate to extreme UV is drawn using international standard colors of orange, red, and purple.

Rainbows?!

Weather Strip displays a rainbow across any time period where our proprietary algorithm determines there is a reasonably high chance that rainbows may be visible in the sky.

Choose forecast locations

Tap the map marker button at the bottom of the main screen to go to the locations view.

Tap the search button to find locations by name. You can search for cities, addresses, or points of interest like parks, lakes, and trails.

Long-press anywhere on the map to select a location geographically. Tap the GO button to view the forecast.

Save locations for easier switching

In most cases, locations are saved automatically when you view a forecast.

You can also manually add or remove a location by tapping the plus button on the map callout or search result list.

Forecast providers

If you have a premium subscription in the United States, two forecast providers are available. (Update your preference any time in app settings.) Foreca is used for all forecasts outside of the US.

• Foreca provides premium hourly forecasts for any point on the globe. It is consistently ranked as one of the most accurate forecast providers worldwide. Included with free trials and all Premium subscriptions.
• NOAA's US National Weather Service issues forecasts and weather warnings for the United States. Included in all subscription plans for US customers only.

Forecast update frequency

Weather Strip uses the most recent available forecast to predict the current weather conditions and the full week ahead. The app checks regularly for updates.

The age of your forecast depends on when it was last updated by the provider. Foreca updates its forecasts at least once per hour. In the US, NOAA usually issues new forecasts every 6 to 12 hours, depending on location and weather variability.

The current forecast age is displayed in the lower left corner (or a "✓" when the forecast is less than 5 hours old). Tap the label to see the full details and loading status.

Purchases on multiple devices

To access a purchase or upgrade you made on a different device, go to app settings (button in the lower-right of the main screen), tap "Subscription", then tap the "Restore Purchases" link.

Both devices must be signed in to the same Apple ID, or if you have a Family Premium subscription, all devices must be signed in to Apple IDs that are in the same Apple Family Sharing group.

Changing your subscription

You can change your subscription at any time from app settings (tap the button in the lower-right of the main screen, then tap "Subscription"). If you upgrade to a higher-priced subscription, it will start immediately and you will get a refund for any remaining time on your previous subscription. If you downgrade, it will take effect when your previous subscription expires.

Cancellations and Refunds

All purchases are managed by Apple. To stop your subscription from auto-renewing in the future, follow Apple's instructions for cancelling your subscription. If you regret your purchase and want to lose access to your subscription immediately, follow Apple's instructions for requesting a refund.

Widget basics

See Apple's guide for adding and editing widgets. Be aware that adding widgets to a home screen changes its layout and takes time to undo. It's helpful to experiment first on an empty home screen page.

Widget blank or "Requires premium subscription"

Widgets require a premium subscription to help cover the cost of extra data usage. If the widget displays a "Requires premium subscription" message — or in some cases if the widget shows an empty bubble — it means you are subscribed to the basic (US only) plan. To upgrade, tap to open the main app, tap the settings button in the lower right, then tap Subscription.

Widget styles

• Hourly: Shows the most detailed forecast for as many hours as will fit.
• Full Day: Shows the forecast from now until 11pm today or 11pm tomorrow (depending on how late in the day it currently is).
• 3-day / Week: Shows the most compact forecast, spanning about 3 or 7 days depending on size.
• Combination: Shows both the hourly and week-long forecasts, similar to the main app.

Show/hide the legend

Tap the left side of the main timeline to switch between expanded and minimized legends.

Quickly return to "now"

Tap the left end of the weekly view (the strip below the main timeline) to quickly scroll back to the beginning of the forecast, which represents the present moment in time.

Reloading the forecast

Weather Strip automatically reloads the forecast any time an updated version is expected. If an error occurs (such as no internet connection), you can manually reload the forecast by tapping the "!" in the lower left corner and then tapping "Reload".