The website has been designed and supported by Raspisaniye Pogodi Ltd., St. Petersburg, Russia, since 2004. The company has the license for activity in hydrometeorology and in adjacent fields.

The website provides seven-day weather forecasts and information on the actual weather, observed at ground stations.

Forecasts for all 7 days are updated on the site twice a day: by 05:30 and 17:30 UTC. An additional forecast update for the next 3 days (66 hours) occurs between the above full updates: by 11:30 and 23:30 UTC. The latest observational data in SYNOP format is available on the website eight times a day, every three hours: as a rule, by 0:45, 3:45, 6:45 9:45, 12:45, 15:45, 18:45 and 21:45 UTC. The latest observations in METAR format appear on the website once or twice per hour, approximately in 40 minutes after weather observations have been made at the weather station.

Currently our website provides weather forecasts for 173'000 locations, as well as observational data, reported from 9'600 SYNOP weather stations and 5'400 METAR weather stations.

Weather information is provided in tabular form indicating the exact point in time. Therefore the website name is "Reliable Prognosis".

rp5.ru means:
rp - Reliable Prognosis
5 - as website visitors consider, accuracy of our forecasts is worthy of the mark "5" (excellent) under the 5-point grading scale
.ru - в России

Warning

Weather forecasts are never 100% accurate. The observed weather conditions often contradict the forecasts. We strongly recommend that you do not rely on this website as the only source of weather information, but consider your life experience and common sense when making decisions. The owner and the staff are not responsible for any damage that may result from use of information of the website.