Šluknov, Czechia

1. Thu6 PM50°11 mph
2. 7 PM49°10 mph
3. 8 PM49°9 mph
4. 9 PM49°9 mph
5. 10 PM49°9 mph
6. 11 PM49°8 mph
7. Fri12 AM49°8 mph
8. 1 AM49°8 mph
9. 2 AM49°8 mph
10. 3 AM48°8 mph
11. 4 AM48°9 mph
12. 5 AM46°8 mph
13. 6 AM47°9 mph
14. 7 AM47°9 mph
15. 8 AM47°9 mph
16. 9 AM48°8 mph
17. 10 AM51°9 mph
18. 11 AM53°9 mph
19. 12 PM55°9 mph
20. 1 PM55°9 mph
21. 2 PM55°9 mph
22. 3 PM56°8 mph
23. 4 PM55°8 mph
24. 5 PM54°6 mph
25. 6 PM53°5 mph
26. 7 PM51°3 mph
27. 8 PM50°3 mph
28. 9 PM48°2 mph
29. 10 PM47°3 mph
30. 11 PM47°4 mph
31. Sat12 AM47°6 mph
32. 1 AM47°6 mph
33. 2 AM47°7 mph
34. 3 AM46°7 mph
35. 4 AM46°8 mph
36. 5 AM46°8 mph
37. 6 AM46°8 mph
38. 7 AM45°9 mph
39. 8 AM48°9 mph
40. 9 AM52°9 mph
41. 10 AM55°8 mph
42. 11 AM58°7 mph
43. 12 PM61°7 mph
44. 1 PM63°7 mph
45. 2 PM64°6 mph
46. 3 PM65°6 mph
47. 4 PM64°5 mph
48. 5 PM63°4 mph

Scroll sideways for more hours. Pick an hour for every number.

1. TodaySep 2450°46°Light rain—wind 11 mph
2. FriSep 2556°46°Cloudy—0.02 inwind 9 mph
3. SatSep 2665°51°Partly cloudy—wind 9 mph
4. SunSep 2765°54°Partly cloudy—wind 9 mph
5. MonSep 2867°56°Partly cloudy—wind 12 mph
6. TueSep 2968°54°Partly cloudy—wind 10 mph
7. WedSep 3065°50°Clear—wind 9 mph
8. ThuOct 165°56°Clear—wind 10 mph
9. FriOct 267°55°Clear—wind 14 mph
10. SatOct 367°54°Partly cloudy—wind 10 mph
11. SunOct 4~59°48°Model mean0.03 in
12. MonOct 5~60°47°Model mean0.02 in
13. TueOct 6~55°48°Model mean0.11 in
14. WedOct 7~59°50°Model mean0.20 in
15. ThuOct 8~59°48°Model mean0.17 in
16. FriOct 9~68°51°Model mean

• Feels like46°
• WindWNW 11 mph
• Humidity94%
• Dew point48°
• Pressure30.13 inHg
• UV index0 · Lowclear-sky peak 4 Friday
• Sunrise and sunsetSunrise · Sunset
• Moonrise6:04 PMMoonset 3:56 AM
• Moon phaseWaxing gibbous95% lit

Each line is one model’s own forecast at its own grid cell: three kilometers for HRRR, a quarter of a degree for the global models, which can sit a few hundred meters above or below the town. Where they agree the forecast is settled; where they part is where it is not.

NWS gridGFSGEFS ± spreadECMWFECMWF AI

A ~ marks a high or low read from six-hourly steps, which miss the true extreme by a degree or two.

ECMWF ensemble meteogram

10 daysTemperature plume

None of these is a measurement. Each is a rating of the forecast ahead, and of what is happening at the point right now, against what the activity or the ailment is known to mind, and each names the figure that decided it. An ailment or a pest is rated as a risk, low to extreme; an activity, a chore or a journey as a condition, poor to ideal.

The sun is down, so each rating says which span it is for: tomorrow’s daylight, tonight, or the next 24 hours.

Tonight has no dark, clear hour without a bright moon in this forecast. Rated poor.

Dark is the sun 18 degrees below the horizon; where it never gets that low, 12 degrees, marked nautical. Clear is sky cover of 20% or less. A bright moon is one above the horizon with a quarter or more of its disc lit. Transparency is estimated from surface humidity (70% and 85% mark fair and poor) and visibility, since the forecast carries no haze or high cloud moisture; seeing is not rated. Dew is the air within 2 °C of its dew point. Excellent is four or more clear moonless hours with good transparency; good is three; fair is one, or two clear hours.

Hours fit for spraying, and the days dry enough for fieldwork and hay, read from this forecast’s wind, gusts, humidity, temperature and rain.

Spraying windows

• Fri 11 AM to 7 PM 8 hours, every hour within the rules
• Sat 8 AM to Sun 6 AM 22 hours, every hour within the rules
• Sun 8 AM to Mon 2 AM 18 hours, every hour within the rules
• Mon 8 PM to Tue 2 AM 6 hours, every hour within the rules
• Tue 8 AM to 8 PM 12 hours, every hour within the rules
• Wed 2 AM to Fri 2 AM 48 hours, every hour within the rules
• Fri 8 PM to Sat 8 AM 12 hours, every hour within the rules
• Sat 2 PM to Sun 4 AM 14 hours, every hour within the rules

Good Marginal No

Field days

Spraying: sustained wind 3 to 10 mph, the range US extension services and most labels give; gusts no more than 15 mph (this page’s limit); delta T (air minus wet-bulb temperature) 2 to 8 °C preferred and 8 to 10 °C marginal, from GRDC guidance, with the wet bulb by Stull’s formula; no hour at a 30% chance of rain or 0.25 mm forecast during the rain-free time. Follow the product label, which overrides all of this. Field days: dry is no daytime hour at a 30% chance and under 1 mm all day, wet is 6 mm (0.25 in) or more; soil moisture is not in the forecast, so ground still wet from earlier rain is not accounted for. Hay drying marks a dry day with humidity down to 50% and a breeze of 5 mph or more.

1. Tonight46° · WNW 7–11 mph

   Light rain. Low near 8°C. Westnorthwest wind 12 to 18 km/h.

2. Friday56° · W 6–9 mph

   Cloudy. High near 13°C. West wind 10 to 14 km/h.

3. Friday Night46° · SSW 2–8 mph

   Cloudy. Low near 8°C. Southsouthwest wind 4 to 13 km/h.

4. Saturday65° · SSW 4–9 mph

   Partly cloudy. High near 18°C. Southsouthwest wind 6 to 15 km/h.

5. Saturday Night51° · S 4–9 mph

   Partly cloudy. Low near 10°C. South wind 6 to 14 km/h.

6. Sunday65° · SSE 7–9 mph

   Partly cloudy. High near 19°C. Southsoutheast wind 12 to 14 km/h.

7. Sunday Night54° · SSE 7–12 mph

   Partly cloudy. Low near 12°C. Southsoutheast wind 12 to 19 km/h.

8. Monday67° · S 11–12 mph

   Partly cloudy. High near 20°C. South wind 17 to 19 km/h.

9. Monday Night56° · SSE 9–11 mph

   Mostly clear. Low near 13°C. Southsoutheast wind 14 to 17 km/h.

10. Tuesday68° · SSE 8–9 mph

    Partly cloudy. High near 20°C. Southsoutheast wind 13 to 15 km/h.

11. Tuesday Night54° · ESE 5–9 mph

    Clear. Low near 12°C. Eastsoutheast wind 8 to 14 km/h.

12. Wednesday65° · ESE 6–7 mph

    Clear. High near 18°C. Eastsoutheast wind 10 to 11 km/h.

13. Wednesday Night50° · ESE 8–9 mph

    Clear. Low near 10°C. Eastsoutheast wind 13 to 14 km/h.

14. Thursday65° · ESE 8–9 mph

    Clear. High near 18°C. Eastsoutheast wind 13 to 14 km/h.

15. Thursday Night56° · SE 9–14 mph

    Clear. Low near 13°C. Southeast wind 15 to 23 km/h.

16. Friday67° · SSE 14–14 mph

    Clear. High near 20°C. Southsoutheast wind 22 to 23 km/h.

17. Friday Night55° · S 4–9 mph

    Cloudy. Low near 13°C. South wind 6 to 15 km/h.

18. Saturday67° · S 8–10 mph

    Partly cloudy. High near 19°C. South wind 13 to 16 km/h.

19. Saturday Night54° · S 6–8 mph

    Clear. Low near 12°C. South wind 9 to 13 km/h.

Climate of Šluknov: normals, records and every month

The forecast office edits about sixty fields for every cell of its grid. The common ones are above; these are the rest, as the daily extreme, for anyone who needs the mixing height, the fire danger or the swell.