Ponto Belo, Brazil

1. Fri5 AM69°5 mph
2. 6 AM69°5 mph
3. 7 AM70°6 mph
4. 8 AM73°6 mph
5. 9 AM76°5 mph
6. 10 AM78°5 mph
7. 11 AM80°6 mph
8. 12 PM81°5 mph
9. 1 PM82°5 mph
10. 2 PM83°5 mph
11. 3 PM83°4 mph
12. 4 PM83°5 mph
13. 5 PM81°9 mph
14. 6 PM76°12 mph
15. 7 PM74°12 mph
16. 8 PM73°12 mph
17. 9 PM72°11 mph
18. 10 PM71°9 mph
19. 11 PM71°7 mph
20. Sat12 AM70°7 mph
21. 1 AM70°7 mph
22. 2 AM69°6 mph
23. 3 AM68°5 mph
24. 4 AM69°5 mph
25. 5 AM69°5 mph
26. 6 AM69°5 mph
27. 7 AM73°6 mph
28. 8 AM76°9 mph
29. 9 AM80°8 mph
30. 10 AM82°7 mph
31. 11 AM83°6 mph
32. 12 PM85°5 mph
33. 1 PM86°5 mph
34. 2 PM85°5 mph
35. 3 PM85°6 mph
36. 4 PM85°7 mph
37. 5 PM84°8 mph
38. 6 PM78°11 mph
39. 7 PM75°11 mph
40. 8 PM73°10 mph
41. 9 PM72°10 mph
42. 10 PM71°9 mph
43. 11 PM70°7 mph
44. Sun12 AM69°7 mph
45. 1 AM69°6 mph
46. 2 AM68°6 mph
47. 3 AM68°6 mph
48. 4 AM68°5 mph

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

1. TodaySep 2583°69°Rain showers—0.02 inwind 12 mph
2. SatSep 2686°67°Partly cloudy—wind 11 mph
3. SunSep 2789°67°Partly cloudy—wind 13 mph
4. MonSep 2889°68°Partly cloudy—wind 10 mph
5. TueSep 2993°69°Mostly clear—wind 11 mph
6. WedSep 3095°70°Clear—wind 11 mph
7. ThuOct 199°71°Clear—wind 11 mph
8. FriOct 287°67°Light rain showers—0.16 inwind 13 mph
9. SatOct 370°68°Heavy rain—1.21 inwind 13 mph
10. SunOct 476°68°No forecast—wind 8 mph
11. MonOct 5~89°69°Model mean0.04 in
12. TueOct 6~92°68°Model mean
13. WedOct 7~93°69°Model mean
14. ThuOct 8~85°71°Model mean0.06 in
15. FriOct 9~81°68°Model mean0.06 in
16. SatOct 10~72°65°Model mean0.01 in

• Feels like69°
• WindS 5 mph
• Humidity88%
• Dew point65°
• Pressure30.03 inHg
• UV index0 · Lowclear-sky peak 12 today
• Sunrise and sunsetSunrise · Sunset · not yet up
• Moonrise4:49 PMMoonset 4:34 AM
• Moon phaseWaxing gibbous99% 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

• Fri 7 AM to 10 AM 3 hours, every hour within the rules
• Fri 3 PM to 6 PM 3 hours, every hour within the rules
• Sat 7 AM to 6 PM 11 hours, every hour within the rules
• Sat 9 PM to Sun 12 AM 3 hours, every hour within the rules
• Sun 7 AM to 5 PM 10 hours, some with delta T between 8 and 10 °C
• Mon 9 AM to 3 PM 6 hours, every hour within the rules
• Mon 9 PM to Tue 3 AM 6 hours, every hour within the rules
• Tue 9 AM to 3 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.

1. Tonight69° · S 5 mph

   Cloudy. Low near 20°C. South wind around 8 km/h.

2. Friday83° · E 4–9 mph

   Rain showers. High near 29°C. East wind 7 to 14 km/h.

3. Friday Night68° · ENE 5–12 mph

   Partly cloudy. Low near 20°C. Eastnortheast wind 8 to 19 km/h.

4. Saturday86° · NE 5–9 mph

   Partly cloudy. High near 30°C. Northeast wind 8 to 14 km/h.

5. Saturday Night67° · ENE 6–11 mph

   Clear. Low near 20°C. Eastnortheast wind 9 to 17 km/h.

6. Sunday89° · ENE 6–12 mph

   Partly cloudy. High near 32°C. Eastnortheast wind 9 to 19 km/h.

7. Sunday Night67° · ENE 2–13 mph

   Mostly clear. Low near 19°C. Eastnortheast wind 4 to 21 km/h.

8. Monday89° · NE 8–9 mph

   Partly cloudy. High near 31°C. Northeast wind 13 to 15 km/h.

9. Monday Night68° · NE 7–9 mph

   Clear. Low near 20°C. Northeast wind 12 to 15 km/h.

10. Tuesday93° · NNE 6–7 mph

    Mostly clear. High near 34°C. Northnortheast wind 10 to 12 km/h.

11. Tuesday Night69° · NE 9–11 mph

    Clear. Low near 21°C. Northeast wind 14 to 17 km/h.

12. Wednesday95° · NE 7–9 mph

    Clear. High near 35°C. Northeast wind 11 to 14 km/h.

13. Wednesday Night70° · NE 8–11 mph

    Clear. Low near 21°C. Northeast wind 13 to 17 km/h.

14. Thursday99° · NE 5–10 mph

    Clear. High near 37°C. Northeast wind 8 to 16 km/h.

15. Thursday Night71° · ESE 11–11 mph

    Clear. Low near 22°C. Eastsoutheast wind 17 to 18 km/h.

16. Friday87° · SE 11–14 mph

    Light rain showers. High near 30°C. Southeast wind 17 to 22 km/h. Precipitation around 0.5 mm.

17. Friday Night67° · SSE 9–14 mph

    Heavy rain. Low near 19°C. Southsoutheast wind 15 to 22 km/h. Precipitation around 21 mm.

18. Saturday70° · SE 9–10 mph

    Heavy rain. High near 21°C. Southeast wind 15 to 16 km/h. Precipitation around 13 mm.

19. Saturday Night68° · SSE 2–6 mph

    Cloudy. Low near 20°C. Southsoutheast wind 3 to 10 km/h.

20. Sunday76° · E 8 mph

    No forecast. High near 24°C. East wind around 13 km/h.

Climate of Ponto Belo: 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.