Can I Go Outside?

This calculator combines temperature, humidity, sun, and wind to show the best windows for being outside.

Try a ZIP code, city, town, or postal code.

Checked Washington, DC at 2:57 AM.

Details

Terms

WBGT blends heat, humidity, sun, and wind into how conditions feel. Dew Point shows how dry or sticky the air is.

Thresholds

Good means WBGT 65-76 °F and Dew Point 30-60 °F.

Right now

Observed at KDCA, 2:52 AM.

WBGT 62.0 °F Dew Point 51.1 °F Air 70.0 °F Wind 9.2 mph

Forecast confidence

  • Today uses the National Weather Service forecast and is the most sure.
  • Next 3 days uses 3 weather models; 3/3 means all three agree.
  • This week uses many weather runs; percentages show how many agree.

Next good time

Today, 8-12 AM. WBGT 65.2-75.1 °F · most sure

Today windows

  • Sat Jun 20 8-12 AM: WBGT 65.2-75.1 °F · most sure

Next 3 days

  • Sun Jun 21 9 AM-2 PM: confident · 3/3 models
  • Sun Jun 21 5-10 PM: confident · 3/3 models

This week

  • Wed Jun 24 6 AM-12 PM: 97% agreement
  • Wed Jun 24 6-10 PM: 97% agreement

Right now

observed at KDCA, 2:52 AM

Too cool right now

Next good time

Today, 8-12 AM

Comfort prediction for the rest of the day.

Too cool
Too cool
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
8 AM-10 PM
Good Too cool

Next 3 days

Sun Jun 21
9 AM-2 PM 5-10 PM

This week

Wed Jun 24
6 AM-12 PM 6-10 PM

Why temperature is not enough

A temperature reading is a lousy way to know whether you will like being outside. 85 degrees in dry shade can feel fine. 85 degrees in heavy humidity and direct sun can feel brutal. Humidity, sun, and wind all change how heat hits your body, but most apps still hand you one number and make you do the math.

Comfort Predictor does that work for you. It blends temperature, humidity, sun, and wind into one measure of how the air will feel, then shows the times when conditions are comfortable today, over the next few days, and across the week. Instead of "85 and humid," you get "comfortable from 7-9am, then again after 6pm."

It is built for anyone planning time outdoors: a walk, a run, gardening, a kid's playtime, a dog walk, or lunch outside. The point is simple: pick the right window, not just the right temperature.