The outside temperature doesn't register on the inside device. Changed the batteries in the outside device. Also, how do you change the time. Since I replaced batteries in the inside device the time is wrong.

Let the camera in the zip bag reach the same cold temperature outside before you take a picture. You may need to warm the battery in your hands/pocket for the battery to operating temperature.
After you have taken your photos, place the camera back in the zip bag so when you return inside a warm house you won't get condensation on the camera/lens. You need to let the camera reach room temperature before you take photos inside the house.

Sometimes the weather brings us surprises. For example, it is sunny in the morning bet when you leave your office, it is snowing outside. So, it can spoil our evening. In such cases, snow day finder is necessary because it can warn you about future weather changes.

how do you adjust the weather forecaster 63-1090 clock

After inserting the batteries, DO NOT set the time until the OUTSIDE temperature registers. That's the trick.

All these wireless weather station devices have to be paired to the base unit whenever the batteries are changed in any of the remotes. It's a poor design issue, but there is no way around it, due to the nature of wireless operation.

Place both units near each other and look on the back of your base and remote sensor units, you should find a reset button (or a small hole). Either press the button or use the end of a paper clip to depress and hold the reset on each unit; Base 1st, then the remote 2nd.

After a brief moment, the remote should register with the base and you'll be back getting wireless readings.

Hope you find this Very Helpful and best regards!

Try changing the battereis in the CLOCK. When the batteries in the clock start getting low, the clock does not pick up the outside transmitter.