El Torno, Bolivia

1. Thu7 PM67°11 mph
2. 8 PM67°6 mph
3. 9 PM66°9 mph
4. 10 PM66°10 mph
5. 11 PM66°10 mph
6. Fri12 AM67°10 mph
7. 1 AM67°10 mph
8. 2 AM67°10 mph
9. 3 AM67°10 mph
10. 4 AM66°10 mph
11. 5 AM66°9 mph
12. 6 AM66°9 mph
13. 7 AM68°9 mph
14. 8 AM72°10 mph
15. 9 AM74°10 mph
16. 10 AM76°9 mph
17. 11 AM78°8 mph
18. 12 PM78°6 mph
19. 1 PM79°6 mph
20. 2 PM80°8 mph
21. 3 PM80°9 mph
22. 4 PM78°10 mph
23. 5 PM76°10 mph
24. 6 PM73°9 mph
25. 7 PM71°8 mph
26. 8 PM70°8 mph
27. 9 PM69°8 mph
28. 10 PM68°8 mph
29. 11 PM68°9 mph
30. Sat12 AM69°11 mph
31. 1 AM70°13 mph
32. 2 AM70°13 mph
33. 3 AM70°14 mph
34. 4 AM70°15 mph
35. 5 AM70°16 mph
36. 6 AM70°16 mph
37. 7 AM71°15 mph
38. 8 AM74°16 mph
39. 9 AM78°20 mph
40. 10 AM81°25 mph
41. 11 AM82°26 mph
42. 12 PM83°26 mph
43. 1 PM84°25 mph
44. 2 PM84°26 mph
45. 3 PM84°26 mph
46. 4 PM82°22 mph
47. 5 PM80°21 mph
48. 6 PM78°21 mph

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

1. TodayOct 167°66°Cloudy—wind 11 mph
2. FriOct 280°68°Rain showers—0.09 inwind 10 mph
3. SatOct 384°65°Partly cloudy—wind 26 mph
4. SunOct 475°70°Heavy rain—1.26 inwind 10 mph
5. MonOct 583°68°Rain—0.37 inwind 17 mph
6. TueOct 677°71°Cloudy—0.22 inwind 6 mph
7. WedOct 783°73°Cloudy—0.07 inwind 18 mph
8. ThuOct 882°74°Partly cloudy—0.05 inwind 20 mph
9. FriOct 982°68°Rain—0.49 inwind 16 mph
10. SatOct 1076°67°Cloudy—0.30 inwind 9 mph
11. SunOct 1166°66°No forecast—0.15 inwind 7 mph
12. MonOct 12~82°66°Model mean0.03 in
13. TueOct 13~75°67°Model mean0.06 in
14. WedOct 14~76°67°Model mean0.06 in
15. ThuOct 15~69°64°Model mean0.98 in
16. FriOct 16~71°60°Model mean

• Feels like67°
• WindSSW 11 mph
• Humidity98%
• Dew point66°
• Pressure29.96 inHg
• UV index0 · Lowclear-sky peak 12 Friday
• Sunrise and sunsetSunrise · Sunset · set
• Moonrise11:26 PMMoonset 9:32 AM
• Moon phaseWaning gibbous74% 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 in the table 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 and transparency by hour, where shown, are Environment and Climate Change Canada’s astronomy forecast (regional model; seeing from cloud, wind shear, turbulence near the ground and the surface temperature trend; transparency from the moisture through the whole air column), under the Open Government Licence - Canada. 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.

Golden hour is the sun between 6 degrees above the horizon and 4 degrees below it; blue hour is the sun between 4 and 6 degrees below. These are the definitions timeanddate.com and PhotoPills use. Directions are degrees clockwise from true north, where the sun’s upper edge and the moon’s center cross a flat horizon; hills and buildings change both. None means the sun does not reach that height on the day; all day means it stays inside the band.

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 3 PM to 7 PM 4 hours, every hour within the rules
• Sun 2 PM to 8 PM 6 hours, every hour within the rules
• Tue 2 PM to 8 PM 6 hours, every hour within the rules
• Sat 2 PM to 8 PM 6 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.

The best-rated day this week is Thursday, rated fair.

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index · Solunar tables for El Torno, by month

Major periods are two hours centered on the moon’s passage overhead and underfoot; minor periods are one hour centered on moonrise and moonset: the conventional durations of John Alden Knight’s solunar tables (1936). The rating is this site’s: one point to start, two more within a day and a half of a new or full moon (one more within three and a half days), and one more when a period falls within an hour of sunrise or sunset. The theory has mixed support in fisheries research; the times are exact astronomy.

1. Tonight66° · SSW 6–11 mph

   Cloudy. Low near 19°C. Southsouthwest wind 10 to 18 km/h.

2. Friday80° · E 6–10 mph

   Rain showers. High near 27°C. East wind 10 to 16 km/h. Precipitation around 2 mm.

3. Friday Night68° · NNW 8–16 mph

   Partly cloudy. Low near 20°C. Northnorthwest wind 13 to 26 km/h.

4. Saturday84° · NNW 15–26 mph

   Partly cloudy. High near 29°C. Northnorthwest wind 24 to 42 km/h.

5. Saturday Night65° · WNW 6–21 mph

   Heavy rain. Low near 18°C. Westnorthwest wind 10 to 34 km/h. Precipitation around 26 mm.

6. Sunday75° · W 4–6 mph

   Heavy rain. High near 24°C. West wind 6 to 10 km/h. Precipitation around 6 mm.

7. Sunday Night70° · NE 1 mph

   Light rain. Low near 21°C. Northeast wind around 2 km/h. Precipitation around 1.0 mm.

8. Monday83° · N 3–17 mph

   Rain. High near 28°C. North wind 5 to 27 km/h. Precipitation around 1.5 mm.

9. Monday Night68° · SSE 0–5 mph

   Heavy rain. Low near 20°C. Southsoutheast wind 0 to 8 km/h. Precipitation around 12 mm.

10. Tuesday77° · E 4–6 mph

    Cloudy. High near 25°C. East wind 7 to 10 km/h.

11. Tuesday Night71° · N 6–9 mph

    Cloudy. Low near 22°C. North wind 9 to 14 km/h. Precipitation around 0.9 mm.

12. Wednesday83° · N 11–18 mph

    Cloudy. High near 28°C. North wind 18 to 29 km/h. Precipitation around 0.7 mm.

13. Wednesday Night73° · N 14–16 mph

    Light rain. Low near 23°C. North wind 22 to 26 km/h. Precipitation around 0.7 mm.

14. Thursday82° · N 14–20 mph

    Partly cloudy. High near 28°C. North wind 22 to 32 km/h. Precipitation around 0.8 mm.

15. Thursday Night74° · N 11–16 mph

    Partly cloudy. Low near 23°C. North wind 17 to 26 km/h.

16. Friday82° · N 6–14 mph

    Rain. High near 28°C. North wind 9 to 22 km/h. Precipitation around 4 mm.

17. Friday Night68° · W 7–8 mph

    Heavy rain. Low near 20°C. West wind 11 to 13 km/h. Precipitation around 14 mm.

18. Saturday76° · SSE 9 mph

    Cloudy. High near 24°C. Southsoutheast wind around 14 km/h. Precipitation around 0.6 mm.

19. Saturday Night67° · S 4–7 mph

    Rain. Low near 20°C. South wind 7 to 11 km/h. Precipitation around 5 mm.

20. Sunday66° · S 6 mph

    No forecast. High near 19°C. South wind around 9 km/h.

Climate of El Torno: 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.