Elefsína, Greece

1. Sat12 AM68°9 mph
2. 1 AM66°9 mph
3. 2 AM65°9 mph
4. 3 AM64°9 mph
5. 4 AM63°9 mph
6. 5 AM63°8 mph
7. 6 AM64°9 mph
8. 7 AM62°7 mph
9. 8 AM62°6 mph
10. 9 AM63°8 mph
11. 10 AM64°8 mph
12. 11 AM67°9 mph
13. 12 PM68°10 mph
14. 1 PM71°11 mph
15. 2 PM71°10 mph
16. 3 PM71°10 mph
17. 4 PM71°10 mph
18. 5 PM70°11 mph
19. 6 PM70°11 mph
20. 7 PM68°13 mph
21. 8 PM67°13 mph
22. 9 PM66°14 mph
23. 10 PM66°13 mph
24. 11 PM65°14 mph
25. Sun12 AM64°14 mph
26. 1 AM64°14 mph
27. 2 AM64°14 mph
28. 3 AM64°13 mph
29. 4 AM62°14 mph
30. 5 AM63°12 mph
31. 6 AM64°13 mph
32. 7 AM64°13 mph
33. 8 AM65°14 mph
34. 9 AM66°15 mph
35. 10 AM68°15 mph
36. 11 AM70°15 mph
37. 12 PM72°16 mph
38. 1 PM72°17 mph
39. 2 PM72°18 mph
40. 3 PM71°19 mph
41. 4 PM71°18 mph
42. 5 PM70°17 mph
43. 6 PM68°19 mph
44. 7 PM67°16 mph
45. 8 PM66°16 mph
46. 9 PM66°13 mph
47. 10 PM67°12 mph
48. 11 PM66°11 mph

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

1. TodaySep 2671°63°Heavy rain—0.18 inwind 14 mph
2. SunSep 2772°63°Light rain—0.13 inwind 19 mph
3. MonSep 2876°61°Mostly clear—wind 15 mph
4. TueSep 2978°61°Clear—wind 9 mph
5. WedSep 3077°60°Mostly clear—wind 9 mph
6. ThuOct 174°59°Mostly clear—0.04 inwind 5 mph
7. FriOct 275°58°Light rain showers—0.05 inwind 5 mph
8. SatOct 376°61°Mostly clear—wind 7 mph
9. SunOct 475°61°Mostly clear—0.02 inwind 4 mph
10. MonOct 5~72°60°Model mean0.01 in
11. TueOct 6~72°62°Model mean0.02 in
12. WedOct 7~72°64°Model mean0.07 in
13. ThuOct 8~71°61°Model mean
14. FriOct 9~71°58°Model mean
15. SatOct 10~68°61°Model mean0.20 in
16. SunOct 11~71°61°Model mean

• Feels like68°
• WindNE 9 mph
• Humidity52%
• Dew point49°
• Pressure30.04 inHg
• UV index0 · Lowclear-sky peak 6 today
• Sunrise and sunsetSunrise · Sunset · not yet up
• Moonrise6:59 PMMoonset 6:50 AM
• Moon phaseFull moon100% 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.

Each rating says which span it is for: the rest of today’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

• Sat 12 AM to 2 AM 2 hours, every hour within the rules
• Sat 11 AM to 1 PM 2 hours, every hour within the rules
• Sat 2 PM to 4 PM 2 hours, every hour within the rules
• Mon 9 PM to Thu 3 PM 66 hours, some with delta T between 8 and 10 °C
• Thu 9 PM to Fri 3 PM 18 hours, every hour within the rules
• Sat 3 AM to Sun 9 PM 42 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. Tonight63° · NNE 8–9 mph

   Partly cloudy. Low near 17°C. Northnortheast wind 13 to 15 km/h.

2. Saturday71° · NNW 6–11 mph

   Heavy rain. High near 22°C. Northnorthwest wind 10 to 18 km/h. Precipitation around 5 mm.

3. Saturday Night62° · N 11–14 mph

   Heavy rain. Low near 17°C. North wind 18 to 23 km/h. Precipitation around 3 mm.

4. Sunday72° · N 13–19 mph

   Light rain. High near 22°C. North wind 21 to 31 km/h. Precipitation around 0.7 mm.

5. Sunday Night63° · NNW 11–19 mph

   Partly cloudy. Low near 17°C. Northnorthwest wind 18 to 31 km/h.

6. Monday76° · N 12–15 mph

   Mostly clear. High near 25°C. North wind 19 to 24 km/h.

7. Monday Night61° · NNW 6 mph

   Clear. Low near 16°C. Northnorthwest wind around 10 km/h.

8. Tuesday78° · NNW 4–9 mph

   Clear. High near 26°C. Northnorthwest wind 7 to 14 km/h.

9. Tuesday Night61° · NNW 5–6 mph

   Clear. Low near 16°C. Northnorthwest wind 8 to 9 km/h.

10. Wednesday77° · N 7–9 mph

    Mostly clear. High near 25°C. North wind 11 to 14 km/h.

11. Wednesday Night60° · N 4–5 mph

    Light rain showers. Low near 16°C. North wind 6 to 8 km/h. Precipitation around 0.6 mm.

12. Thursday74° · NNW 2–6 mph

    Mostly clear. High near 24°C. Northnorthwest wind 3 to 9 km/h. Precipitation around 0.5 mm.

13. Thursday Night59° · NNW 4–5 mph

    Mostly clear. Low near 15°C. Northnorthwest wind 7 to 8 km/h.

14. Friday75° · WNW 2–4 mph

    Light rain showers. High near 24°C. Westnorthwest wind 4 to 7 km/h. Precipitation around 1.2 mm.

15. Friday Night58° · N 0–4 mph

    Clear. Low near 14°C. North wind 0 to 6 km/h.

16. Saturday76° · W 3–7 mph

    Mostly clear. High near 24°C. West wind 5 to 11 km/h.

17. Saturday Night61° · NE 4 mph

    Clear. Low near 16°C. Northeast wind around 6 km/h.

18. Sunday75° · W 3–4 mph

    Mostly clear. High near 24°C. West wind 5 to 6 km/h.

19. Sunday Night61° · E 1–4 mph

    Clear. Low near 16°C. East wind 1 to 7 km/h.

Climate of Elefsína: 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.