Météo à 3 jours pour Helena
Prévisions heure par heure sur 3 jours pour Helena (Montana, États-Unis), en heure locale (UTC−7). Modèles : RRFS 3 km (run 11/11 12Z) puis GFS 0,25° (run 11/11 12Z).
Autres villes : Helena (Alabama, États-Unis), Helena (Arkansas, États-Unis), Helena (Georgia, États-Unis), Helena (Oklahoma, États-Unis), Helena (Mississippi, États-Unis)
| Jour | Heure | Temps | T °C (ressenti) |
Vent (km/h) | Humidité % |
Pluie mm |
Pression hPa |
||
|---|---|---|---|---|---|---|---|---|---|
| moy. | raf. | dir. | |||||||
| Mer. 11 Nov. UV 1 | 12h |  | 14°C (14) | 5 | 6 |  | 51% | -- | 1021 hPa |
| 13h |  | 15°C (15) | 6 | 7 |  | 50% | -- | 1020 hPa | |
| 14h | | 15°C (15) | 6 | 7 | | 47% | -- | 1019 hPa | |
| 15h | | 16°C (16) | 6 | 6 | | 46% | -- | 1019 hPa | |
| 16h |  | 15°C (15) | 4 | 5 |  | 50% | -- | 1018 hPa | |
| 17h |  | 13°C (13) | 6 | 7 |  | 58% | -- | 1019 hPa | |
| 18h |  | 12°C (11) | 8 | 8 |  | 59% | -- | 1019 hPa | |
| 19h |  | 12°C (11) | 8 | 9 |  | 57% | -- | 1019 hPa | |
| 20h | | 11°C (10) | 9 | 9 | | 54% | -- | 1019 hPa | |
| 21h | | 11°C (11) | 6 | 6 | | 50% | -- | 1019 hPa | |
| 22h |  | 10°C (10) | 5 | 6 | | 50% | -- | 1019 hPa | |
| 23h |  | 9°C (9) | 5 | 5 | | 52% | -- | 1019 hPa | |
| Jeu. 12 Nov. UV 2 | 00h | | 9°C (8) | 6 | 8 | | 53% | -- | 1019 hPa |
| 01h |  | 8°C (7) | 5 | 6 | | 55% | -- | 1019 hPa | |
| 02h |  | 8°C (8) | 4 | 5 | | 56% | -- | 1019 hPa | |
| 03h | | 7°C (6) | 5 | 6 | | 60% | -- | 1019 hPa | |
| 04h | | 6°C (4) | 10 | 11 | | 63% | -- | 1019 hPa | |
| 05h | | 7°C (5) | 9 | 11 | | 61% | -- | 1018 hPa | |
| 06h | | 6°C (4) | 8 | 11 | | 61% | -- | 1018 hPa | |
| 07h | | 5°C (3) | 9 | 9 | | 64% | -- | 1019 hPa | |
| 08h | | 6°C (4) | 8 | 8 | | 58% | -- | 1019 hPa | |
| 09h | | 7°C (7) | 2 | 4 | | 51% | -- | 1018 hPa | |
| 10h | | 10°C (10) | 0 | 5 | | 46% | -- | 1018 hPa | |
| 11h | | 11°C (10) | 4 | 8 | | 45% | -- | 1017 hPa | |
| 12h | | 12°C (12) | 4 | 6 | | 48% | -- | 1015 hPa | |
| 13h | | 13°C (13) | 5 | 7 | | 46% | -- | 1014 hPa | |
| 14h | | 14°C (14) | 4 | 6 | | 43% | -- | 1013 hPa | |
| 15h | | 14°C (14) | 4 | 6 | | 42% | -- | 1012 hPa | |
| 16h | | 13°C (13) | 3 | 5 | | 46% | -- | 1012 hPa | |
| 17h | | 11°C (10) | 7 | 8 | | 51% | -- | 1011 hPa | |
| 18h | | 10°C (9) | 5 | 9 | | 46% | -- | 1011 hPa | |
| 19h | | 10°C (9) | 7 | 11 | | 47% | -- | 1011 hPa | |
| 20h | | 9°C (7) | 7 | 12 | | 47% | -- | 1010 hPa | |
| 21h | | 9°C (7) | 9 | 13 | | 43% | -- | 1010 hPa | |
| 22h | | 9°C (7) | 7 | 13 | | 41% | -- | 1010 hPa | |
| 23h | | 9°C (7) | 9 | 15 | | 41% | -- | 1010 hPa | |
| Ven. 13 Nov. UV 1 | 00h | | 8°C (5) | 10 | 16 | | 42% | -- | 1009 hPa |
| 01h | | 8°C (6) | 8 | 12 | | 41% | -- | 1009 hPa | |
| 02h | | 8°C (7) | 5 | 8 | | 40% | -- | 1009 hPa | |
| 03h | | 7°C (6) | 4 | 6 | | 40% | -- | 1009 hPa | |
| 04h | | 6°C (5) | 4 | 5 | | 44% | -- | 1008 hPa | |
| 05h | | 6°C (5) | 5 | 6 | | 44% | -- | 1008 hPa | |
| 06h | | 6°C (5) | 6 | 7 | | 45% | -- | 1008 hPa | |
| 07h | | 6°C (4) | 6 | 10 | | 47% | -- | 1008 hPa | |
| 08h | | 5°C (3) | 5 | 10 | | 49% | -- | 1008 hPa | |
| 09h | | 7°C (5) | 4 | 12 | | 49% | -- | 1008 hPa | |
| 10h | | 9°C (6) | 6 | 17 | | 45% | -- | 1007 hPa | |
| 11h | | 13°C (10) | 13 | 37 | | 33% | -- | 1005 hPa | |
| 12h | | 15°C (13) | 20 | 43 | | 31% | -- | 1004 hPa | |
| 13h | | 15°C (13) | 20 | 40 | | 31% | -- | 1002 hPa | |
| 14h | | 15°C (13) | 21 | 43 | | 31% | -- | 1001 hPa | |
| 15h | | 15°C (13) | 19 | 45 | | 32% | -- | 1000 hPa | |
| 16h | | 14°C (12) | 7 | 35 | | 37% | -- | 1000 hPa | |
| 17h | | 11°C (9) | 5 | 19 |  | 48% | -- | 1001 hPa | |
| 18h | | 10°C (7) | 7 | 24 | | 52% | -- | 1001 hPa | |
| 19h | | 9°C (6) | 10 | 27 | | 52% | -- | 1001 hPa | |
| 20h | | 9°C (6) | 10 | 27 | | 54% | -- | 1001 hPa | |
| 21h | | 8°C (5) | 5 | 18 | | 59% | -- | 1001 hPa | |
| 22h | | 7°C (5) | 3 | 9 | | 63% | -- | 1001 hPa | |
| 23h | | 7°C (5) | 5 | 13 | | 64% | -- | 1001 hPa | |
| Sam. 14 Nov. UV 2 | 00h | | 7°C (4) | 9 | 15 | | 65% | -- | 1001 hPa |
| 01h | | 8°C (5) | 12 | 20 | | 62% | -- | 1001 hPa | |
| 02h | | 9°C (6) | 13 | 22 | | 59% | -- | 1000 hPa | |
| 03h | | 8°C (5) | 9 | 15 | | 60% | -- | 1000 hPa | |
| 04h | | 8°C (5) | 9 | 16 | | 60% | -- | 1000 hPa | |
| 05h | | 9°C (6) | 12 | 22 | | 58% | -- | 1000 hPa | |
| 06h | | 9°C (6) | 13 | 22 | | 58% | -- | 1001 hPa | |
| 07h | | 9°C (6) | 15 | 27 | | 57% | -- | 1001 hPa | |
| 08h | | 8°C (4) | 17 | 29 | | 57% | -- | 1002 hPa | |
| 09h | | 9°C (5) | 18 | 35 | | 54% | -- | 1002 hPa | |
| 10h | | 11°C (8) | 16 | 36 | | 49% | -- | 1001 hPa | |
| 11h | | 12°C (9) | 12 | 26 | | 45% | -- | 1002 hPa | |
| 12h | | 12°C (10) | 10 | 20 | | 44% | -- | 1002 hPa | |
| 13h | | 12°C (10) | 13 | 22 | | 43% | -- | 1003 hPa | |
| 14h | | 12°C (10) | 16 | 23 | | 42% | -- | 1003 hPa | |
| 15h | | 11°C (8) | 17 | 24 | | 45% | -- | 1004 hPa | |
| 16h | | 10°C (7) | 13 | 22 | | 49% | -- | 1005 hPa | |
| 17h | | 7°C (4) | 11 | 21 | | 56% | -- | 1007 hPa | |
| 18h | | 7°C (3) | 10 | 22 | | 58% | -- | 1009 hPa | |
| 19h | | 6°C (3) | 9 | 14 | | 60% | -- | 1011 hPa | |
| 20h | | 5°C (2) | 9 | 11 | | 66% | -- | 1012 hPa | |
| 21h | | 5°C (3) | 8 | 10 | | 69% | -- | 1012 hPa | |
| 22h | | 4°C (1) | 9 | 11 | | 76% | -- | 1013 hPa | |
| 23h | | 3°C (-0) | 9 | 12 | | 79% | -- | 1014 hPa | |
| Dim. 15 Nov. | 00h | | 3°C (0) | 8 | 11 | | 79% | -- | 1015 hPa |
| 01h | | 3°C (1) | 8 | 9 | | 80% | -- | 1015 hPa | |
| 02h | | 2°C (-1) | 8 | 10 | | 80% | -- | 1016 hPa | |
| 03h | | 2°C (-1) | 8 | 9 | | 81% | -- | 1016 hPa | |
| 04h | | 2°C (-1) | 8 | 10 | | 81% | -- | 1016 hPa | |
| 05h | | 2°C (-1) | 8 | 10 | | 82% | -- | 1016 hPa | |
| 06h | | 2°C (-1) | 8 | 10 | | 82% | -- | 1017 hPa | |
| 07h | | 1°C (-2) | 8 | 9 | | 82% | -- | 1017 hPa | |
| 08h | | 2°C (-1) | 9 | 11 | | 80% | -- | 1017 hPa | |
| 09h | | 5°C (2) | 7 | 11 | | 68% | -- | 1017 hPa | |
| 10h | | 7°C (4) | 7 | 15 | | 56% | -- | 1015 hPa | |
| 11h |  | 9°C (7) | 7 | 16 | | 46% | -- | 1014 hPa | |
| 12h | | 10°C (8) | 8 | 16 | | 40% | -- | 1013 hPa | |
| 13h | | 11°C (9) | 8 | 17 | | 36% | -- | 1012 hPa | |
| 14h | | 12°C (10) | 8 | 17 | | 34% | -- | 1012 hPa | |
| 15h | | 12°C (10) | 7 | 16 | | 35% | -- | 1012 hPa | |
| 16h | | 10°C (8) | 7 | 12 | | 42% | -- | 1012 hPa | |
| 17h | | 7°C (5) | 9 | 12 | | 51% | -- | 1013 hPa | |
| 18h | | 6°C (3) | 10 | 13 | | 55% | -- | 1015 hPa | |
| 19h | | 5°C (2) | 10 | 13 | | 58% | -- | 1015 hPa | |
| 20h | | 5°C (2) | 9 | 12 | | 59% | -- | 1016 hPa | |
| 21h | | 4°C (1) | 9 | 11 | | 61% | -- | 1016 hPa | |
| 22h | | 4°C (2) | 8 | 10 | | 62% | -- | 1016 hPa | |
| 23h | | 4°C (2) | 7 | 9 | | 63% | -- | 1017 hPa | |
| Lun. 16 Nov. | 00h | | 3°C (0) | 8 | 10 | | 64% | -- | 1017 hPa |
| 01h | | 3°C (1) | 7 | 9 | | 66% | -- | 1018 hPa | |
| 02h | | 3°C (1) | 7 | 9 | | 65% | -- | 1018 hPa | |
| 03h | | 3°C (1) | 6 | 9 | | 65% | -- | 1018 hPa | |
| 04h | | 3°C (1) | 5 | 7 | | 64% | -- | 1018 hPa | |
| 05h | | 2°C (-0) | 6 | 8 | | 64% | -- | 1019 hPa | |
Point modèle utilisé : latitude 46.59°N, longitude -112.04°E, altitude 1237.7 m
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