5-day weather forecast Prague 18-08-2026
Weather forecast Prague today 18.08.2026: patchy rain possible, temperature from 12 °C to 19 °C.
Precipitation probability 60%. Wind up to 5.5 m/s (gusts 10.72 m/s). Air humidity 46–91%, atmospheric pressure 758–761 mm Hg, UV index up to 4.4.
Weather Alerts
Hide alertsModerate Fire Impact
Risk of fires due to prolonged drought. Possible occurrence of severe fire with subsequent damage. Possible damage to ecosystems, property, forestry, agriculture, etc. Risk of human injury. Deterioration of air quality causing respiratory problems and other health issues.
Do not light fires outdoors, do not burn grass, do not smoke or discard cigarette butts on the ground. Do not use portable stoves or other open flame sources. Follow local bans issued due to drought and fire risk. Stay alert when using agricultural machinery and near railway tracks where sparks from wheels and brakes can ignite vegetation.
Moderate Fire Impact
Risk of fires due to prolonged drought. Possible occurrence of severe fire with subsequent damage. Possible damage to ecosystems, property, forestry, agriculture, etc. Risk of human injury. Deterioration of air quality causing respiratory problems and other health issues.
Do not light fires outdoors, do not burn grass, do not smoke or discard cigarette butts on the ground. Do not use portable stoves or other open flame sources. Follow local bans issued due to drought and fire risk. Stay alert when using agricultural machinery and near railway tracks where sparks from wheels and brakes can ignite vegetation.
5 days at a glance — tap a day to open it
Sunrise 05:56
Sunset 20:15
Sunset 20:15
First Quarter37% illuminated
Moonrise 13:14 · Moonset 22:03
Moonrise 13:14 · Moonset 22:03
Chart
Table
Tue, Aug 18, 2026
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 13 °C | 14% (0.01 mm/hr) | 50% | 78% | 761 mm Hg | W 260° 3 (6.61) m/s | 0 |
| 01:00 |  Partly cloudy | 13 °C | 17% | 55% | 83% | 761 mm Hg | WSW 243° 3.11 (6.61) m/s | 0 |
| 02:00 | Patchy rain possible | 13 °C | 22% (0.01 mm/hr) | 82% | 82% | 760 mm Hg | WSW 252° 2.81 (6.72) m/s | 0 |
| 03:00 | Patchy rain possible | 13 °C | 25% (0.03 mm/hr) | 83% | 83% | 760 mm Hg | WSW 255° 2.69 (6.61) m/s | 0 |
| 04:00 | Patchy rain possible | 13 °C | 26% (0.05 mm/hr) | 74% | 86% | 760 mm Hg | WSW 257° 2.5 (6.72) m/s | 0 |
| 05:00 | Patchy rain possible | 13 °C | 20% (0.01 mm/hr) | 58% | 88% | 760 mm Hg | W 264° 2.5 (6.92) m/s | 0 |
| 06:00 |  Overcast | 13 °C | 28% | 100% | 88% | 760 mm Hg | W 272° 2.5 (6.42) m/s | 0 |
| 07:00 |  Sunny | 12 °C | 13% | 21% | 84% | 760 mm Hg | W 268° 2.5 (6.22) m/s | 0.2 |
| 08:00 | Overcast | 14 °C | 22% | 99% | 77% | 760 mm Hg | W 277° 3 (5.22) m/s | 0.7 |
| 09:00 | Sunny | 15 °C | 6% | 18% | 67% | 760 mm Hg | WNW 290° 3.31 (4.92) m/s | 1.6 |
| 10:00 |  Cloudy | 17 °C | 11% | 82% | 58% | 760 mm Hg | WNW 285° 3 (4.61) m/s | 2.9 |
| 11:00 |  Patchy rain possible | 18 °C | 13% (0.01 mm/hr) | 100% | 53% | 759 mm Hg | WNW 284° 3.11 (5.11) m/s | 3.6 |
| 12:00 | Patchy rain possible | 19 °C | 14% (0.03 mm/hr) | 100% | 49% | 759 mm Hg | WNW 286° 3.81 (6.22) m/s | 4.4 |
| 13:00 | Patchy rain possible | 19 °C | 12% (0.02 mm/hr) | 100% | 46% | 758 mm Hg | WNW 291° 4.81 (8.11) m/s | 2.6 |
| 14:00 | Patchy rain possible | 19 °C | 11% (0.01 mm/hr) | 100% | 46% | 758 mm Hg | WNW 287° 4.69 (7.81) m/s | 2.4 |
| 15:00 | Patchy rain possible | 19 °C | 12% (0.01 mm/hr) | 100% | 48% | 758 mm Hg | W 277° 5.19 (7.61) m/s | 0.8 |
| 16:00 | Patchy rain possible | 18 °C | 17% (0.06 mm/hr) | 100% | 55% | 758 mm Hg | W 274° 5.5 (8.22) m/s | 0.3 |
| 17:00 | Patchy rain possible | 17 °C | 17% (0.03 mm/hr) | 100% | 61% | 758 mm Hg | W 269° 4.89 (8.03) m/s | 0.2 |
| 18:00 |  Light rain shower | 15 °C | 43% (0.42 mm/hr) | 100% | 70% | 758 mm Hg | WSW 255° 3.81 (7.22) m/s | 0 |
| 19:00 | Patchy rain possible | 14 °C | 31% (0.07 mm/hr) | 100% | 80% | 758 mm Hg | SW 226° 2.19 (6) m/s | 0 |
| 20:00 | Overcast | 15 °C | 24% | 100% | 80% | 758 mm Hg | SSW 205° 2.39 (7.03) m/s | 0 |
| 21:00 |  Light rain shower | 15 °C | 60% (0.58 mm/hr) | 100% | 85% | 758 mm Hg | SW 222° 2.5 (7.11) m/s | 0 |
| 22:00 | Light rain shower | 15 °C | 57% (0.39 mm/hr) | 100% | 91% | 758 mm Hg | SW 230° 2.61 (8.11) m/s | 0 |
| 23:00 | Light rain shower | 15 °C | 51% (0.29 mm/hr) | 100% | 90% | 758 mm Hg | SW 223° 3.39 (10.72) m/s | 0 |
Tue, Aug 18, 2026
Frequently asked questions about the 5-day weather in Prague
What will the weather be like in Prague over the next 5 days?
Over the next 5 days in Prague the temperature is expected to range from about 12 to 26 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Prague?
The chance of rain in Prague over the next 5 days reaches 90%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Prague?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Prague will be the warmest and which the coolest?
Over the next 5 days the temperature in Prague ranges from about 12 to 26 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Prague over the next 5 days?
Over the next 5 days the wind in Prague picks up to 6 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Prague is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 90%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Prague?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
Prague on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.