Here is a link to find out when the International Space Station is going by in your area of the world.
Once you enter where you are here's some things I thought might be helpful to spot the dot of light going by.
I like to pick a night to see it go by when it will reach a high "Max Height" listed as a degree in the chart.
Zero degree is the horizon. 90 degrees is the point directly over your head, known as zenith
. For example: 45 degrees Max Height would mean the station would reach its highest point in the sky half way between the horizon, and your zenith.
In the column marked "Appears" the number tells you how high up in the sky the station will first appear, and which direction to look. And, in the column marked "Disappears", how high up in the sky the station will disappear, and in which direction.
Note: the station will most likely appear, and disappear above the horizon as it passes from shadow into sunlight, then back to shadow. One will only see it when it is in sunlight. But again, that number in the "Appears" column will give you a general idea where to look when it appears from seemingly nowhere. Keep an eye on the time. Those NASA guys are usually pretty accurate.
It may help to know that an out stretched hand from the tip of your thumb to the little finger is approx. 20-25 degrees. That's holding your hand out parallel to the horizon.
The station is traveling at about 17,000 miles per hour, (five miles per second!). So it only takes a few minutes, at the most, to see it go by. If you were living in the station you would see a sunrise, and set, about 15 times in 24 hr. period.
About 230 miles, (370 km) altitude. Station is the largest man made object in space, and it's not really that high up, compared to some other satellites. So it's pretty easy to spot once you know when, and where to look.
Wishing everyone clear skies.