Chilongolo, Zambia

1. Thu4 PM84°15 mph
2. 5 PM81°14 mph
3. 6 PM78°12 mph
4. 7 PM75°11 mph
5. 8 PM72°8 mph
6. 9 PM72°7 mph
7. 10 PM72°9 mph
8. 11 PM71°10 mph
9. Fri12 AM70°11 mph
10. 1 AM69°10 mph
11. 2 AM68°11 mph
12. 3 AM68°13 mph
13. 4 AM67°14 mph
14. 5 AM66°14 mph
15. 6 AM65°13 mph
16. 7 AM66°13 mph
17. 8 AM69°14 mph
18. 9 AM74°14 mph
19. 10 AM77°13 mph
20. 11 AM81°12 mph
21. 12 PM83°11 mph
22. 1 PM85°10 mph
23. 2 PM87°9 mph
24. 3 PM87°13 mph
25. 4 PM84°14 mph
26. 5 PM81°15 mph
27. 6 PM78°13 mph
28. 7 PM75°11 mph
29. 8 PM73°11 mph
30. 9 PM72°10 mph
31. 10 PM70°10 mph
32. 11 PM69°11 mph
33. Sat12 AM68°13 mph
34. 1 AM68°13 mph
35. 2 AM66°13 mph
36. 3 AM65°13 mph
37. 4 AM64°13 mph
38. 5 AM63°14 mph
39. 6 AM62°14 mph
40. 7 AM65°13 mph
41. 8 AM69°15 mph
42. 9 AM75°14 mph
43. 10 AM79°13 mph
44. 11 AM83°12 mph
45. 12 PM85°10 mph
46. 1 PM87°7 mph
47. 2 PM88°5 mph
48. 3 PM88°5 mph

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

1. TodaySep 2484°66°Partly cloudy—wind 15 mph
2. FriSep 2587°63°Cloudy—wind 15 mph
3. SatSep 2688°68°Partly cloudy—wind 15 mph
4. SunSep 2792°73°Clear—wind 15 mph
5. MonSep 2893°77°Clear—wind 12 mph
6. TueSep 2991°70°Mostly clear—wind 13 mph
7. WedSep 3083°64°Cloudy—0.02 inwind 18 mph
8. ThuOct 179°60°Cloudy—0.02 inwind 14 mph
9. FriOct 284°62°Partly cloudy—wind 11 mph
10. SatOct 385°65°Mostly clear—wind 10 mph
11. SunOct 4~87°66°Model mean
12. MonOct 5~92°69°Model mean
13. TueOct 6~92°71°Model mean
14. WedOct 7~85°70°Model mean0.02 in
15. ThuOct 8~87°68°Model mean0.01 in
16. FriOct 9~96°74°Model mean

• Feels like84°
• WindSE 15 mph
• Humidity20%
• Dew point38°
• Pressure29.99 inHg
• UV index2 · Lowclear-sky peak 2 today
• Sunrise and sunsetSunrise · Sunset
• Moonrise4:14 PMMoonset 4:14 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.

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 fair.

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

• Thu 8 PM to 11 PM 3 hours, some with delta T between 8 and 10 °C
• Mon 2 AM to 8 AM 6 hours, some with delta T between 8 and 10 °C
• Thu 2 PM to Fri 2 AM 12 hours, some with delta T between 8 and 10 °C
• Fri 8 PM to Sat 8 AM 12 hours, every hour within the rules
• Sat 8 PM to Sun 2 AM 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. This Afternoon84° · SE 14 mph

   Partly cloudy. High near 29°C. Southeast wind around 23 km/h.

2. Tonight66° · E 7–14 mph

   Mostly clear. Low near 19°C. East wind 12 to 22 km/h.

3. Friday87° · E 9–14 mph

   Cloudy. High near 31°C. East wind 15 to 23 km/h.

4. Friday Night63° · E 9–14 mph

   Clear. Low near 17°C. East wind 15 to 23 km/h.

5. Saturday88° · ENE 5–15 mph

   Partly cloudy. High near 31°C. Eastnortheast wind 8 to 24 km/h.

6. Saturday Night68° · E 10–13 mph

   Mostly clear. Low near 20°C. East wind 16 to 21 km/h.

7. Sunday92° · ENE 2–15 mph

   Clear. High near 33°C. Eastnortheast wind 3 to 24 km/h.

8. Sunday Night73° · E 7–9 mph

   Clear. Low near 23°C. East wind 12 to 15 km/h.

9. Monday93° · ESE 6–12 mph

   Clear. High near 34°C. Eastsoutheast wind 10 to 19 km/h.

10. Monday Night77° · E 10–11 mph

    Clear. Low near 25°C. East wind 16 to 17 km/h.

11. Tuesday91° · E 11–13 mph

    Mostly clear. High near 33°C. East wind 17 to 21 km/h.

12. Tuesday Night70° · E 12–18 mph

    Clear. Low near 21°C. East wind 19 to 29 km/h.

13. Wednesday83° · E 10–17 mph

    Cloudy. High near 28°C. East wind 16 to 27 km/h. Precipitation around 0.5 mm.

14. Wednesday Night64° · E 11–13 mph

    Cloudy. Low near 18°C. East wind 17 to 21 km/h.

15. Thursday79° · ENE 6–14 mph

    Cloudy. High near 26°C. Eastnortheast wind 9 to 22 km/h. Precipitation around 0.6 mm.

16. Thursday Night60° · ESE 9 mph

    Clear. Low near 16°C. Eastsoutheast wind around 15 km/h.

17. Friday84° · SE 4–11 mph

    Partly cloudy. High near 29°C. Southeast wind 6 to 17 km/h.

18. Friday Night62° · E 10 mph

    Partly cloudy. Low near 16°C. East wind around 16 km/h.

19. Saturday85° · E 5–10 mph

    Mostly clear. High near 30°C. East wind 8 to 16 km/h.

20. Saturday Night65° · E 9–11 mph

    Clear. Low near 18°C. East wind 15 to 17 km/h.

Climate of Chilongolo: 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.