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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 8/16/26 1:15 AM PDT
Station Date Daily Max Temp (°F) Time of Max Temp Daily Min Temp (°F) Time of Min Temp Dew Pt (°F) Daily Max RH (%) Daily Min RH (%) Wind Spd (mph) Daily Max Wind (mph) Time of Max Wind Max Wind Dir (°) Daily Rain (In) Season Precip (In) Daily ETo (in) Daily Solar Rad (Cal/cm2) Powdery Mildew Stress (pts)
Montesol 8/15/26 78.6   2.5 1645 47.5   1.4 0447 - - - - - - - 0.00 0.00 - - 40   20
Pope Valley (Weeks Lake) 8/15/26 84.9   5.1 1543 46.3   3.8 0345 52.0   1.1 100   6 28   12 1.9   0.3 14.2   2.0 1426 SSW | 210 0.00 0.00 0.178   0.028 541   57 60   20
Dollarhide Base 8/15/26 89.5   7.0 1604 55.0   1.5 0307 56.9   0.4 96   4 28   15 3.0   0.5 14.5   0.7 1411 SSE | 167 0.00 0.00 0.205   0.038 591   72 30   10
Dollarhide 1AS Remote 8/15/26 91.0   5.8 1631 51.8   4.9 0339 55.8   0.1 93   4 26   14 3.0   0.7 11.8   5.0 1402 SW | 216 - - - - 30   10
Dollarhide 16A Remote 8/15/26 88.3   8.3 1610 51.8   4.5 0334 56.4   0.0 98   5 29   18 - - - - - - - - 30   10
Dollarhide 18A Remote 8/15/26 87.6   7.6 1644 50.1   5.8 0325 55.4   0.1 98   6 28   18 - - - - - - - - 30   10
Hardin Rd (Eakle) 8/15/26 86.8   5.8 1503 52.8   4.4 0327 - - - - - - - - - - - 30   10
Angwin 8/15/26 76.5   4.6 1533 54.4   5.8 0534 52.6   0.1 94   6 36   15 2.5   0.0 11.4   1.7 1424 SE | 146 0.00 0.00 0.030   0.012 0   0 70   10
Lower Angwin (Pioneer) 8/15/26 78.4   4.6 1629 43.7   8.2 0059 - - - 1.7   0.5 10.2   0.3 1429 WSW | 240 - - - - 60   20
Las Posadas (Cal Fire) 8/15/26 81.5   6.8 1602 51.9   1.0 0644 54.5   0.5 100   0 33   18 7.1   0.4 18.6   0.6 2036 SW | 234 0.00 0.00 0.186   0.049 559   111 -
Deer Park 8/15/26 84.5   6.0 1639 54.9   0.2 0622 54.7   0.8 95   3 36   9 2.5   0.8 13.9   0.5 1552 WNW | 294 0.00 0.00 0.126   0.022 342   49 20   20
Lower Chiles Valley (Brown) 8/15/26 83.4   6.5 1612 53.9   0.2 0116 54.2   0.5 96   2 30   15 3.2   0.4 14.2   1.6 1437 W | 280 0.00 0.00 0.181   0.030 576   63 20   20
Moss Creek Vineyard/Reservior 8/14/26 80.0   4.3 1608 55.2   0.9 0048 53.6   0.6 94   4 40   4 - - - - 0.00 0.00 - - 0   0
Max   91.0 - 55.2 - 56.9 100 40 7.1 18.6 - - 0.00 0.00 0.205 591 -
Avg   - - - - 54.6 - - 3.1 - - - - - - - -
Min   76.5 - 43.7 - 52.0 93 26 1.7 10.2 - - 0.00 0.00 0.030 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 8/16/26 1:15 AM PDT
Station Date Daily Max Temp (°F) Time of Max Temp Daily Min Temp (°F) Time of Min Temp Dew Pt (°F) Daily Max RH (%) Daily Min RH (%) Wind Spd (mph) Daily Max Wind (mph) Time of Max Wind Max Wind Dir (°) Daily Rain (In) Season Precip (In) Daily ETo (in) Daily Solar Rad (Cal/cm2) Powdery Mildew Stress (pts)
Calistoga-North 8/15/26 84.9   1.2 1414 52.9   0.6 0129 56.2   0.4 95   1 43   1 - - - - 0.00 0.00 - - 80   20
Diamond Mtn (Schramsberg) 8/15/26 83.3   7.5 1602 53.4   0.7 0650 54.6   1.3 100   6 39   9 - - - - 0.00 0.00 - - 20   20
Diamond Mtn (McEachran) 8/15/26 82.4   3.5 1621 54.4   0.1 0107 54.6   0.6 94   5 41   3 - - - - - - - - 50   20
St. Helena-North 8/15/26 87.4   7.7 1604 53.8   0.0 0101 53.1   0.8 84   0 32   8 1.7 13.2   1.1 1829 SSE | 166 0.00 0.00 0.154   0.015 468   50 30   10
St. Helena (NVV Office) 8/15/26 88.1   7.7 1604 57.2   0.0 0101 - - - 1.4 8.6   2.4 1658 SE | 135 0.00 0.00 - - 30   10
Tiara Fria (East St. Helena) 8/15/26 85.1   7.4 1547 54.4   1.3 0059 55.2   0.9 86   2 36   11 2.0 12.3   0.8 1656 SE | 136 0.00 0.00 - - 60   20
Prisoner Winery 8/15/26 87.8   6.1 1552 51.6   0.5 0115 55.2   0.9 97   1 35   7 1.3 8.9   1.6 1658 SSE | 167 0.00 0.00 0.121   0.006 332   45 30   10
Rutherford Hill Estate 8/15/26 85.1   6.4 1523 54.4   0.1 0058 55.3   0.9 93   0 38   8 1.3 13.2   2.2 1703 ESE | 117 0.00 0.00 0.146   0.023 462   61 40   20
Rutherford-North (Mee Ln) 8/15/26 84.2   6.2 1538 50.1   0.2 0103 54.6   0.8 92   1 39   9 2.7 15.6   2.2 1755 SSE | 153 0.00 0.00 0.154   0.030 446   82 60   20
Rutherford (STS) 8/15/26 86.2   6.8 1510 49.8   0.7 0109 57.1   0.7 92   0 42   9 2.0 13.2   1.9 1718 NE | 47 0.00 0.00 0.170   0.042 531   122 0   10
Oakville-NE (Ranch 88) 8/15/26 85.1   7.2 1518 50.7   0.0 0101 53.5   0.6 86   2 35   9 2.1 14.9   3.1 1647 S | 172 0.00 0.00 0.159   0.039 469   120 100   0
OV561-East 8/15/26 85.2   5.3 1619 53.8   0.4 0132 - - - - - - - - - - - 90   20
Oakville 8/15/26 81.9   6.2 1521 52.6   0.4 0117 54.7   0.7 92   2 41   9 3.2 16.5   2.2 1728 SE | 132 0.00 0.00 0.172   0.047 530   142 100   20
OV518-West 8/15/26 81.8   6.8 1508 53.4   0.5 0106 - - - - - - - - - - - 100   20
To Kalon Remote (TKKE) 8/15/26 84.4   6.0 1513 51.4   0.9 0124 - - - - - - - - - - - 90   20
To Kalon 8/15/26 82.6   6.1 1525 52.0   1.0 0128 55.6   0.7 94   2 42   9 3.0 13.8   3.1 1736 SE | 141 0.00 0.00 0.163   0.047 486   140 60   20
To Kalon Remote (TKN5) 8/15/26 85.2   6.4 1507 52.5   1.4 0130 - - - - - - - - - - - 90   20
Yountville (Ranch 67) 8/15/26 80.4   6.5 1455 53.4   2.6 0059 54.0   0.6 89   2 42   8 3.3 17.0   0.0 1631 E | 88 0.00 0.00 0.167   0.040 552   120 100   20
Stags Leap Dist (Silverado Vineyards) 8/15/26 81.1   6.4 1505 53.5   2.1 0048 54.0   0.5 91   2 42   8 2.5 17.4   0.2 1834 SSE | 154 0.00 0.00 0.153   0.042 466   132 80   10
Borreo (Soda Canyon) 8/14/26 73.2   2.2 1548 51.4   1.6 2343 53.2   0.1 94   1 51   1 2.1 10.6   3.8 1716 E | 89 0.00 0.00 0.106   0.012 357   49 90   10
Wappo Hill Floor 8/15/26 82.0   6.0 1448 54.4   1.0 0139 55.3   0.7 100   10 43   5 2.8 16.5   2.8 1748 SE | 125 0.00 0.00 0.161   0.044 495   135 90   20
Stags Leap Dist (Chimney Rock) 8/15/26 80.1   5.1 1508 55.1   1.9 0101 56.9   0.6 93   1 51   7 2.6 12.8   0.1 1522 SE | 133 0.00 0.00 0.138   0.038 437   118 100   20
Yountville-South (Ranch 87) 8/15/26 82.7   5.5 1447 50.2   2.1 0207 55.2   0.2 97   2 41   8 1.7 11.3   1.4 1647 SSW | 204 0.00 0.00 0.151   0.043 484   140 100   0
Yountville-SE (Ranch 85) 8/15/26 80.1   6.0 1449 53.4   3.2 0211 55.8   0.4 94   2 46   8 2.5 14.4   2.0 1530 SSE | 154 0.00 0.00 - 0   0 100   20
Oak Knoll-East (Ranch 53) 8/15/26 80.2   5.6 1424 51.5   1.5 0144 54.5   0.4 91   0 43   8 2.3 13.3   0.5 1636 SE | 143 0.00 0.00 0.157   0.041 498   122 90   20
Napa-NW (Ranch 54) 8/15/26 82.4   5.6 1558 51.2   1.2 0129 54.5   0.3 92   2 41   8 0.6 8.6   0.1 1423 SW | 227 0.00 0.00 - 0   0 100   0
Napa-North (Ranch 29) 8/15/26 78.0   5.0 1555 55.1   2.5 0058 56.3   1.1 100   10 51   3 1.9 16.1   2.0 1504 SSW | 194 0.00 0.00 0.120   0.023 383   74 100   20
Max   88.1 - 57.2 - 57.1 100 51 3.3 17.4 - - 0.00 0.00 0.172 552 -
Avg   - - - - 55.0 - - 2.1 - - - - - - - -
Min   73.2 - 49.8 - 53.1 84 32 0.6 8.6 - - 0.00 0.00 0.106 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 8/16/26 1:15 AM PDT
Station Date Daily Max Temp (°F) Time of Max Temp Daily Min Temp (°F) Time of Min Temp Dew Pt (°F) Daily Max RH (%) Daily Min RH (%) Wind Spd (mph) Daily Max Wind (mph) Time of Max Wind Max Wind Dir (°) Daily Rain (In) Season Precip (In) Daily ETo (in) Daily Solar Rad (Cal/cm2) Powdery Mildew Stress (pts)
Mt. Veeder 8/15/26 77.8   5.9 1541 50.0   1.7 0627 54.0   0.4 100   0 45   9 1.5 13.5   2.2 1516 SSE | 160 0.00 0.00 0.185   0.030 741   17 40   10
Mount George (Napa East) 8/15/26 76.2   4.4 1547 53.1   5.2 2333 55.2   1.9 94   0 51   5 1.7 10.8   1.8 1434 WSW | 247 0.00 0.00 0.140   0.035 468   119 70   10
Napa-East (Palmaz 300') 8/15/26 82.2   6.5 1649 53.8   3.6 2330 55.7   0.8 96   5 43   6 1.2 10.9   2.0 1559 W | 264 0.00 0.00 0.137   0.035 434   106 70   20
Napa-East (Palmaz 1200') 7/3/26 79.0   6.0 1616 49.0   3.8 0539 47.1   0.2 100   0 45   38 2.0 12.7   4.5 1533 NW | 313 - - 0.192   0.009 656   3 30   20
Napa-East (Palmaz 1400') 8/15/26 74.3   5.9 1538 53.5   1.0 0347 55.3   0.6 100   0 55   9 3.0 12.9   1.2 1511 SW | 218 0.01 0.03 0.132   0.045 473   141 70   10
Wooden Valley 8/15/26 78.6   5.8 1651 55.4   0.0 0425 54.0   0.8 92   2 42   9 4.2 13.1   0.1 1455 WSW | 252 0.00 0.00 0.170   0.054 560   167 60   20
Napa-West Upper (Truchard) 8/15/26 79.5   4.2 1544 52.3   3.3 0037 50.6   2.2 100   0 0   0 3.6 14.8   1.7 1556 SSE | 163 0.00 0.00 0.162   0.034 495   104 100   20
Napa-West Lower (Truchard) 8/15/26 79.4   4.5 1351 47.6   5.3 0047 54.6   0.0 94   3 45   5 - - - - - - - - 100   20
Napa-South (Toyon Farms) 8/15/26 76.6   3.5 1339 54.0   2.9 2358 57.2   0.4 99   4 56   4 4.1 14.8   3.0 1425 SSE | 153 0.00 0.00 0.092   0.015 289   40 100   20
Toyon Remote 1 8/15/26 79.0   5.3 1328 53.9   2.8 2350 - - - - - - - - - - - -
Toyon Remote 2 8/15/26 76.7   3.8 1319 54.9   2.7 0006 - - - - - - - - - - - -
Toyon Remote 3 8/15/26 78.0   3.8 1804 53.0   2.9 2352 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 8/15/26 77.8   4.8 1647 54.5   3.1 2352 54.8   0.2 95   5 46   7 2.5 13.7   5.3 1423 SE | 145 0.00 0.00 0.152   0.027 497   80 100   20
Carneros (Saintsbury) 8/15/26 75.5   4.0 1452 51.9   4.0 0057 54.4   0.2 100   9 52   4 4.8 15.3   7.5 1422 SSE | 162 0.00 0.00 - - 70   20
Suscol Lower (Ranch 35) 8/15/26 76.0   3.0 1631 53.5   4.1 2334 54.8   0.3 92   4 50   2 4.1 15.3   5.3 1433 S | 182 0.00 0.00 0.145   0.016 454   52 60   10
Suscol Mtn (Ranch 93) 8/15/26 79.0   5.5 1508 54.3   0.0 0049 55.6   1.0 99   0 52   6 5.5 16.6   2.7 1532 WNW | 303 0.00 0.00 - - 100   20
Suscol Upper (Ranch 92) 8/15/26 74.5   5.6 1638 54.8   0.2 0057 11.9   19.8 100   0 0   0 3.5 15.3   4.5 1349 SSW | 194 0.00 0.00 - - 40   10
Stanly (Ranch 45) 8/15/26 75.0   3.0 1516 52.6   4.5 2339 54.8   0.2 91   4 53   3 4.5 17.2   3.5 1552 S | 178 0.00 0.00 0.161   0.016 519   45 100   20
Carneros Upper (Ranch 81) 8/15/26 77.5   4.9 1513 54.8   2.1 2242 45.3   9.3 - - 7.6 23.4   0.7 1905 W | 272 - - - - 70   10
Carneros (Mitsuko) 8/15/26 76.0   3.1 1719 55.3   2.6 2305 - - - - - - - - - - - 100   20
Carneros Lower (Ranch 81) 8/15/26 78.5   5.0 1427 55.8   1.8 2259 55.7   0.3 92   2 49   4 1.3 13.2   2.4 1439 SSE | 166 0.00 0.00 0.143   0.026 463   81 100   20
Carneros (Milton Rd) 8/15/26 75.2   3.1 1636 54.1   3.8 2328 55.0   0.1 92   4 53   2 - - - - 0.00 0.00 - - 80   20
Max   82.2 - 55.8 - 57.2 100 56 7.6 23.4 - - 0.01 0.03 0.185 741 -
Avg   - - - - 51.7 - - 3.5 - - - - - - - -
Min   74.3 - 47.6 - 11.9 91 0 1.2 10.8 - - 0.00 0.00 0.092 289 -