Semily 48-Hour Snow Forecast
Updated 18 April 2026 00:47 UTC
2-Day Forecast for Semily
48-hours from 18 April.
See below for forecast detail
Semily Snow Forecast updated at 00:47 UTC, next update expected 06:00 UTC.
Forecast for today in Semily
Max 18℃ 64°F
Min 1℃ 34°F
Valley temperatures from an overnight low of 1℃ 34°F to daytime highs around 18℃ 64°F
Temperature at BaseTemp at Base
Sat
18
Snow unlikely
Clear spells first, fair then clear sky, clear spells later.
Forecast times for Semily are in Prague (Europe/Prague) time zone.
Forecast for tomorrow in Semily
Max 16℃ 61°F
Min 6℃ 43°F
Valley temperatures from an overnight low of 6℃ 43°F to daytime highs around 16℃ 61°F
Temperature at BaseTemp at Base
Sun
19
Snow unlikely
Drizzle early, then cloudy later.
Forecast times for Semily are in Prague (Europe/Prague) time zone.
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48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Sat | 02:00 | | Clear sky. | 4℃ 39°F | SE Light | 0% | |
| Sat | 03:00 | | Clear sky. | 3℃ 37°F | SE Light | 0% | |
| Sat | 04:00 | | Fair. | 2℃ 35°F | SE Light | 0% | |
| Sat | 05:00 | | Cloudy. | 1℃ 34°F | SE Light | 0% | |
| Sat | 06:00 | | Clear spells. | 1℃ 34°F | SE Light | 0% | |
| Sat | 07:00 | | Clear spells. | 3℃ 38°F | SE Light | 0% | |
| Sat | 08:00 | | Clear sky. | 9℃ 48°F | SE Light | 0% | |
| Sat | 09:00 | | Clear sky. | 12℃ 54°F | SE Light | 0% | |
| Sat | 10:00 | | Fair. | 14℃ 57°F | SE Light | 0% | |
| Sat | 11:00 | | Fair. | 15℃ 59°F | SE Light | 0% | |
| Sat | 12:00 | | Clear spells. | 16℃ 60°F | SE Light | 0% | |
| Sat | 13:00 | | Clear spells. | 17℃ 62°F | SE Light | 0% | |
| Sat | 14:00 | | Clear sky. | 17℃ 63°F | SE Light | 0% | |
| Sat | 15:00 | | Clear sky. | 17℃ 63°F | SE Light | 0% | |
| Sat | 16:00 | | Clear sky. | 18℃ 64°F | SE Light | 0% | |
| Sat | 17:00 | | Clear sky. | 18℃ 64°F | SE Light | 0% | |
| Sat | 18:00 | | Fair. | 18℃ 64°F | SE Light | 0% | |
| Sat | 19:00 | | Clear sky. | 16℃ 60°F | SE Light | 0% | |
| Sat | 20:00 | | Fair. | 13℃ 56°F | SE Light | 0% | |
| Sat | 21:00 | | Clear spells. | 11℃ 51°F | SE Light | 0% | |
| Sat | 22:00 | | Clear spells. | 9℃ 48°F | SE Light | 0% | |
| Sat | 23:00 | | Clear spells. | 8℃ 46°F | SE Light | 0% | |
| Sun | 00:00 | | Clear spells. | 8℃ 46°F | S Light | 0% | |
| Sun | 01:00 | | Cloudy. | 8℃ 46°F | S Light | 5% | |
| Sun | 02:00 | | Cloudy. | 7℃ 45°F | S Light | 5% | |
| Sun | 03:00 | | Cloudy. | 7℃ 45°F | S Light | 10% | |
| Sun | 04:00 | | Cloudy. | 8℃ 46°F | S Light | 20% | |
| Sun | 05:00 | | Cloudy. | 9℃ 49°F | S Calm | 30% | |
| Sun | 06:00 |  | Drizzle. | 8℃ 47°F | S Light | 40% | |
| Sun | 07:00 | | Light drizzle. | 8℃ 47°F | S Light | 50% | |
| Sun | 08:00 | | Cloudy. | 9℃ 47°F | S Light | 55% | |
| Sun | 09:00 | | Cloudy. | 10℃ 50°F | S Light | 60% | |
| Sun | 10:00 | | Cloudy. | 12℃ 54°F | S Light | 60% | |
| Sun | 11:00 | | Cloudy. | 13℃ 56°F | S Light | 65% | |
| Sun | 12:00 | | Cloudy. | 14℃ 58°F | S Light | 70% | |
| Sun | 13:00 | | Cloudy. | 15℃ 59°F | S Light | 80% | |
| Sun | 14:00 | | Cloudy. | 16℃ 61°F | S Light | 90% | |
| Sun | 15:00 | | Cloudy. | 16℃ 61°F | S Light | 95% | |
| Sun | 16:00 |  | Rain. | 12℃ 54°F | S Breeze | 95% | |
| Sun | 17:00 | | Light rain. | 12℃ 54°F | S Light | 95% | |
| Sun | 18:00 | | Drizzle. | 11℃ 52°F | S Breeze | 90% | |
| Sun | 19:00 | | Light drizzle. | 10℃ 49°F | S Breeze | 85% | |
| Sun | 20:00 | | Cloudy. | 8℃ 47°F | S Breeze | 80% | |
| Sun | 21:00 | | Cloudy. | 7℃ 45°F | S Breeze | 65% | |
| Sun | 22:00 | | Cloudy. | 7℃ 44°F | S Breeze | 50% | |
| Sun | 23:00 | | Clear spells. | 6℃ 43°F | S Breeze | 35% | |
| Mon | 00:00 | | Fair. | 5℃ 41°F | W Breeze | 25% | |
| Mon | 01:00 | | Clear sky. | 4℃ 40°F | W Breeze | 20% | |
Snow Forecast near Semily
Snow forecasts for nearby ski areas.
| Ski Area | 48 Hr | 7 Day | Sa | Su | Mo | Tu | We | Th | Fr |
|---|---|---|---|---|---|---|---|---|---|
| Harrachov | - | 2cm 1in | |||||||
| Rokytnice Nad Jizerou | - | 2cm 1in | |||||||
| Strázné | - | 2cm 1in |
Semily Snow
For current snow depths and skiing conditions, see our Current Snow Report for Semily.
No significant snowfall is forecast for this period.
This Snow Forecast for Semily, Czech Republic gives the predicted Snowfall and Freezing Levels for the next week.
The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Semily, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.
Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.
Snow Reliability
Semily has a reliable snow record, typically boasting a snow depth of 60-100 cm during peak season. With consistent snowfall from December to March, it's advisable to check the latest snow conditions on J2Ski for current updates.