Météo à 3 jours pour Herndon
Prévisions heure par heure sur 3 jours pour Herndon (Virginia, États-Unis), en heure locale (UTC−5). Modèles : RRFS 3 km (run 12/11 12Z) puis GFS 0,25° (run 12/11 12Z).
| Jour | Heure | Temps | T °C (ressenti) |
Vent (km/h) | Humidité % |
Pluie mm |
Pression hPa |
||
|---|---|---|---|---|---|---|---|---|---|
| moy. | raf. | dir. | |||||||
| Jeu. 12 Nov. UV 1 | 12h |  | 16°C (15) | 9 | 18 |  | 54% | -- | 998 hPa |
| 13h |  | 16°C (15) | 13 | 21 | | 52% | -- | 997 hPa | |
| 14h | | 17°C (16) | 14 | 27 | | 54% | -- | 996 hPa | |
| 15h |  | 17°C (16) | 13 | 26 | | 55% | -- | 996 hPa | |
| 16h |  | 15°C (13) | 18 | 38 | | 64% | -- | 996 hPa | |
| 17h |  | 13°C (10) | 17 | 39 |  | 71% | -- | 997 hPa | |
| 18h |  | 11°C (7) | 20 | 44 | | 71% | -- | 998 hPa | |
| 19h |  | 10°C (6) | 17 | 37 | | 75% | -- | 999 hPa | |
| 20h |  | 10°C (7) | 14 | 30 | | 77% | -- | 999 hPa | |
| 21h |  | 10°C (7) | 12 | 26 | | 78% | -- | 999 hPa | |
| 22h | | 10°C (7) | 11 | 26 | | 80% | -- | 999 hPa | |
| 23h |  | 9°C (5) | 18 | 38 | | 74% | -- | 999 hPa | |
| Ven. 13 Nov. UV 2 | 00h | | 8°C (3) | 19 | 42 | | 75% | -- | 1000 hPa |
| 01h | | 8°C (3) | 17 | 40 | | 73% | -- | 1000 hPa | |
| 02h | | 7°C (2) | 20 | 46 | | 72% | -- | 1000 hPa | |
| 03h | | 6°C (1) | 18 | 42 | | 74% | -- | 1000 hPa | |
| 04h | | 6°C (0) | 20 | 44 | | 74% | -- | 1000 hPa | |
| 05h | | 6°C (0) | 19 | 43 | | 72% | -- | 1001 hPa | |
| 06h | | 6°C (1) | 19 | 42 | | 72% | -- | 1001 hPa | |
| 07h |  | 5°C (-1) | 18 | 42 | | 73% | -- | 1002 hPa | |
| 08h | | 6°C (1) | 21 | 42 | | 70% | -- | 1004 hPa | |
| 09h | | 7°C (2) | 24 | 43 | | 66% | -- | 1004 hPa | |
| 10h | | 7°C (2) | 24 | 41 | | 64% | -- | 1005 hPa | |
| 11h | | 7°C (2) | 23 | 40 | | 62% | -- | 1005 hPa | |
| 12h | | 8°C (3) | 23 | 39 | | 57% | -- | 1004 hPa | |
| 13h | | 8°C (4) | 21 | 35 | | 55% | -- | 1004 hPa | |
| 14h | | 8°C (4) | 21 | 35 | | 54% | -- | 1005 hPa | |
| 15h | | 8°C (4) | 21 | 37 | | 53% | -- | 1005 hPa | |
| 16h | | 8°C (4) | 17 | 33 | | 57% | -- | 1006 hPa | |
| 17h | | 7°C (2) | 16 | 33 | | 59% | -- | 1007 hPa | |
| 18h | | 6°C (1) | 16 | 34 | | 60% | -- | 1008 hPa | |
| 19h | | 6°C (1) | 14 | 33 | | 61% | -- | 1009 hPa | |
| 20h | | 6°C (1) | 15 | 34 | | 62% | -- | 1009 hPa | |
| 21h | | 5°C (-0) | 15 | 33 | | 62% | -- | 1009 hPa | |
| 22h | | 4°C (-1) | 12 | 28 | | 68% | -- | 1009 hPa | |
| 23h | | 3°C (-2) | 9 | 20 | | 72% | -- | 1009 hPa | |
| Sam. 14 Nov. UV 2 | 00h | | 3°C (-2) | 11 | 25 | | 70% | -- | 1010 hPa |
| 01h | | 2°C (-3) | 11 | 24 | | 72% | -- | 1010 hPa | |
| 02h | | 2°C (-3) | 11 | 23 | | 72% | -- | 1010 hPa | |
| 03h | | 2°C (-3) | 9 | 20 | | 74% | -- | 1011 hPa | |
| 04h | | 3°C (-2) | 11 | 27 | | 71% | -- | 1011 hPa | |
| 05h | | 2°C (-3) | 10 | 22 | | 74% | -- | 1012 hPa | |
| 06h | | 2°C (-4) | 13 | 27 | | 74% | -- | 1012 hPa | |
| 07h | | 1°C (-4) | 10 | 22 | | 80% | -- | 1013 hPa | |
| 08h | | 3°C (-3) | 13 | 34 | | 74% | -- | 1013 hPa | |
| 09h | | 4°C (-2) | 18 | 38 | | 66% | -- | 1014 hPa | |
| 10h | | 6°C (1) | 20 | 34 | | 58% | -- | 1014 hPa | |
| 11h | | 7°C (2) | 22 | 37 | | 53% | -- | 1014 hPa | |
| 12h | | 7°C (2) | 20 | 35 | | 52% | -- | 1014 hPa | |
| 13h | | 8°C (4) | 20 | 36 | | 50% | -- | 1013 hPa | |
| 14h | | 8°C (4) | 20 | 36 | | 49% | -- | 1013 hPa | |
| 15h | | 8°C (4) | 17 | 33 | | 55% | -- | 1014 hPa | |
| 16h | | 8°C (4) | 15 | 33 | | 55% | -- | 1014 hPa | |
| 17h | | 7°C (2) | 16 | 33 | | 63% | -- | 1015 hPa | |
| 18h | | 6°C (0) | 21 | 44 | | 71% | -- | 1016 hPa | |
| 19h | | 5°C (1) | 10 | 20 | | 79% | -- | 1016 hPa | |
| 20h | | 5°C (0) | 14 | 28 | | 75% | -- | 1017 hPa | |
| 21h | | 5°C (0) | 14 | 30 | | 77% | -- | 1017 hPa | |
| 22h | | 5°C (1) | 12 | 24 | | 79% | -- | 1018 hPa | |
| 23h | | 4°C (-0) | 9 | 19 | | 84% | -- | 1018 hPa | |
| Dim. 15 Nov. UV 2 | 00h | | 4°C (-0) | 12 | 21 | | 84% | -- | 1017 hPa |
| 01h | | 4°C (-1) | 12 | 23 | | 84% | -- | 1018 hPa | |
| 02h | | 4°C (-0) | 11 | 20 | | 86% | -- | 1018 hPa | |
| 03h | | 4°C (-0) | 11 | 20 | | 86% | -- | 1019 hPa | |
| 04h | | 3°C (-1) | 10 | 19 | | 87% | -- | 1019 hPa | |
| 05h | | 3°C (-1) | 10 | 19 | | 88% | -- | 1020 hPa | |
| 06h | | 3°C (-1) | 10 | 19 | | 87% | -- | 1020 hPa | |
| 07h | | 4°C (0) | 8 | 18 | | 86% | -- | 1021 hPa | |
| 08h | | 5°C (0) | 12 | 27 | | 79% | -- | 1022 hPa | |
| 09h | | 7°C (2) | 15 | 35 | | 73% | -- | 1023 hPa | |
| 10h | | 8°C (4) | 18 | 32 | | 64% | -- | 1023 hPa | |
| 11h | | 8°C (4) | 18 | 33 | | 60% | -- | 1024 hPa | |
| 12h | | 9°C (5) | 19 | 33 | | 56% | -- | 1023 hPa | |
| 13h | | 10°C (6) | 20 | 33 | | 54% | -- | 1023 hPa | |
| 14h | | 9°C (5) | 20 | 34 | | 54% | -- | 1024 hPa | |
| 15h | | 9°C (5) | 19 | 34 | | 56% | -- | 1024 hPa | |
| 16h | | 8°C (4) | 18 | 31 | | 60% | -- | 1025 hPa | |
| 17h | | 8°C (4) | 16 | 32 | | 66% | -- | 1026 hPa | |
| 18h | | 7°C (2) | 16 | 34 | | 71% | -- | 1027 hPa | |
| 19h | | 7°C (2) | 16 | 35 | | 73% | -- | 1027 hPa | |
| 20h | | 7°C (2) | 15 | 35 | | 72% | -- | 1027 hPa | |
| 21h | | 7°C (2) | 13 | 34 | | 72% | -- | 1028 hPa | |
| 22h | | 7°C (2) | 13 | 33 | | 72% | -- | 1028 hPa | |
| 23h | | 7°C (3) | 13 | 32 | | 72% | -- | 1028 hPa | |
| Lun. 16 Nov. | 00h | | 7°C (3) | 11 | 30 | | 72% | -- | 1029 hPa |
| 01h | | 7°C (3) | 11 | 28 | | 72% | -- | 1029 hPa | |
| 02h | | 7°C (3) | 10 | 28 | | 71% | -- | 1029 hPa | |
| 03h | | 7°C (3) | 9 | 27 | | 69% | -- | 1030 hPa | |
| 04h | | 7°C (3) | 9 | 27 | | 64% | -- | 1030 hPa | |
| 05h | | 7°C (3) | 9 | 26 | | 62% | -- | 1030 hPa | |
| 06h | | 7°C (3) | 9 | 26 | | 63% | -- | 1031 hPa | |
| 07h | | 7°C (3) | 9 | 26 | | 63% | -- | 1032 hPa | |
| 08h | | 7°C (3) | 9 | 24 |  | 60% | -- | 1032 hPa | |
| 09h | | 8°C (5) | 13 | 24 | | 53% | -- | 1033 hPa | |
| 10h | | 9°C (6) | 13 | 23 | | 51% | -- | 1033 hPa | |
| 11h | | 10°C (7) | 14 | 20 | | 47% | -- | 1033 hPa | |
| 12h | | 11°C (9) | 14 | 20 | | 44% | -- | 1032 hPa | |
| 13h | | 12°C (10) | 15 | 19 | | 43% | -- | 1031 hPa | |
| 14h | | 12°C (10) | 15 | 19 | | 42% | -- | 1031 hPa | |
| 15h | | 12°C (10) | 14 | 19 | | 43% | -- | 1031 hPa | |
| 16h | | 11°C (9) | 12 | 19 | | 47% | -- | 1031 hPa | |
| 17h | | 8°C (5) | 9 | 17 | | 55% | -- | 1031 hPa | |
| 18h | | 7°C (4) | 8 | 17 | | 59% | -- | 1032 hPa | |
| 19h | | 7°C (4) | 9 | 20 | | 62% | -- | 1033 hPa | |
| 20h | | 6°C (2) | 9 | 22 | | 66% | -- | 1033 hPa | |
| 21h | | 5°C (2) | 8 | 16 | | 69% | -- | 1033 hPa | |
| 22h | | 5°C (2) | 7 | 11 | | 71% | -- | 1034 hPa | |
| 23h | | 4°C (2) | 6 | 10 | | 73% | -- | 1034 hPa | |
| Mar. 17 Nov. | 00h | | 4°C (2) | 6 | 9 | | 74% | -- | 1034 hPa |
| 01h | | 4°C (2) | 6 | 8 | | 76% | -- | 1034 hPa | |
| 02h | | 3°C (1) | 5 | 7 | | 78% | -- | 1034 hPa | |
| 03h | | 3°C (1) | 5 | 7 | | 79% | -- | 1034 hPa | |
| 04h | | 3°C (1) | 5 | 7 | | 80% | -- | 1034 hPa | |
| 05h | | 3°C (1) | 5 | 7 | | 81% | -- | 1034 hPa | |
| 06h | | 2°C (-0) | 6 | 8 | | 81% | -- | 1035 hPa | |
| 07h | | 2°C (-1) | 6 | 9 | | 82% | -- | 1035 hPa | |
Point modèle utilisé : latitude 38.97°N, longitude -77.39°E, altitude 113.2 m
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