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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 8/28/26 4:16 PM 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 8/27/26 93.1   1.0 1355 57.0   5.3 0635 - - - - - - - 0.00 0.00 - - 10   10
Pope Valley (Weeks Lake) 8/27/26 97.5   0.6 1555 48.7   8.6 0640 46.6   5.0 90   10 12   5 1.9   0.6 15.8   5.3 1411 WSW | 237 0.00 0.00 0.196   0.001 505   59 0   0
Dollarhide Base 8/27/26 101.8   1.4 1359 57.0   6.6 0642 50.8   4.0 81   10 16   2 3.3   0.8 18.1   4.0 1744 SW | 226 0.00 0.00 0.233   0.005 539   80 0   0
Dollarhide 1AS Remote 8/27/26 102.9   0.8 1400 49.9   8.9 0609 48.9   5.0 86   3 16   3 2.6   0.9 16.5   2.3 1538 SSW | 199 - - - - 0   0
Dollarhide 16A Remote 8/27/26 101.5   1.2 1609 54.6   6.7 0656 51.1   4.3 85   6 15   3 - - - - - - - - 0   0
Dollarhide 18A Remote 8/27/26 100.9   1.3 1410 48.0   8.9 0600 49.0   4.8 88   4 15   2 - - - - - - - - 0   0
Hardin Rd (Eakle) 8/27/26 98.8   0.1 1343 52.6   8.1 0648 - - - - - - - - - - - 0   0
Angwin 8/27/26 91.0   0.7 1451 67.0   1.0 0634 40.3   7.6 39   4 14   5 3.1   0.4 13.7   0.9 1849 SE | 124 0.00 0.00 0.077   0.005 0   0 100   0
Lower Angwin (Pioneer) 8/27/26 91.5   0.6 1546 49.5   8.9 0544 - - - 1.7   0.2 12.8   1.5 1328 WSW | 245 - - - - 80   10
Las Posadas (Cal Fire) 8/27/26 94.4   0.1 1400 58.8   8.2 0407 47.5   2.5 64   19 19   4 6.6   0.2 23.4   2.3 1926 SSW | 208 0.00 0.00 0.250   0.006 475   75 -
Deer Park 8/27/26 99.1   0.6 1528 59.2   5.9 0649 50.8   4.2 79   2 15   6 3.4   0.5 17.7   4.8 1720 SW | 232 0.00 0.00 0.190   0.007 398   16 0   0
Lower Chiles Valley (Brown) 8/27/26 95.9   1.1 1429 49.5   7.7 0600 47.1   4.6 90   5 17   9 2.6   0.2 13.5   0.6 1920 WNW | 302 0.00 0.00 0.209   0.013 536   72 0   0
Moss Creek Vineyard/Reservior 8/27/26 101.0   0.2 1338 56.0   7.2 0703 48.2   5.6 80   6 10   5 - - - - 0.00 0.00 - - 0   0
Max   102.9 - 67.0 - 51.1 90 19 6.6 23.4 - - 0.00 0.00 0.250 539 -
Avg   - - - - 48.0 - - 3.1 - - - - - - - -
Min   91.0 - 48.0 - 40.3 39 10 1.7 12.8 - - 0.00 0.00 0.077 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 8/28/26 4:16 PM 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 8/27/26 98.7   2.1 1601 54.2   8.2 0622 53.4   4.8 89   5 23   10 - - - - 0.00 0.00 - - 0   0
Diamond Mtn (Schramsberg) 8/27/26 97.1   1.6 1351 61.0   6.6 0651 48.9   3.8 72   6 15   8 - - - - 0.00 0.00 - - 0   0
Diamond Mtn (McEachran) 8/27/26 95.8   1.3 1338 59.2   6.9 0651 49.2   5.0 78   4 17   8 - - - - - - - - 0   0
St. Helena-North 8/27/26 100.3   0.6 1318 55.7   7.6 0635 48.4   5.6 79   6 7   1 2.0 16.7   4.8 1323 SSE | 161 0.00 0.00 0.185   0.003 482   45 0   0
St. Helena (NVV Office) 8/27/26 100.8   0.9 1537 55.8   7.0 0647 - - - 1.3 10.4   2.1 1740 WNW | 295 0.00 0.00 - - 0   0
Tiara Fria (East St. Helena) 8/27/26 98.1   1.8 1552 53.4   7.2 0649 53.1   5.1 88   0 16   3 2.1 13.2   1.8 1800 E | 101 0.00 0.00 - - 0   0
Prisoner Winery 8/27/26 100.6   1.3 1543 52.7   6.9 0550 53.4   4.3 90   4 15   0 1.4 10.8   3.6 1655 SSW | 201 0.00 0.00 0.038   0.032 0   142 0   0
Rutherford Hill Estate 8/27/26 96.7   1.4 1417 58.3   6.3 0640 54.7   3.9 89   4 24   9 1.7 17.3   4.8 1418 SSW | 206 0.00 0.00 0.170   0.006 451   59 0   0
Rutherford-North (Mee Ln) 8/27/26 96.6   0.9 1715 51.5   8.1 0621 53.4   4.6 90   0 16   3 2.9 19.1   6.1 1856 SE | 124 0.00 0.00 0.195   0.002 462   43 0   0
Rutherford (STS) 8/27/26 98.1   0.0 1541 50.8   8.4 0639 56.6   4.6 92   1 21   1 2.0 13.9   0.8 1412 SSE | 149 0.00 0.00 0.199   0.010 537   69 0   0
Oakville-NE (Ranch 88) 8/27/26 95.9   0.2 1518 50.3   7.9 0626 51.9   4.8 81   4 24   6 2.3 18.6   6.9 1810 SSE | 163 0.00 0.00 0.187   0.001 466   51 80   10
OV561-East 8/27/26 96.6   1.4 1537 52.8   7.4 0700 - - - - - - - - - - - 0   0
Oakville 8/27/26 92.3   0.3 1519 51.6   7.9 0651 54.0   4.8 88   3 28   8 3.3 19.8   6.0 1427 ESE | 114 0.00 0.00 0.206   0.009 518   68 70   10
OV518-West 8/27/26 92.4   0.4 1504 52.5   8.0 0643 - - - - - - - - - - - 70   10
To Kalon Remote (TKKE) 8/27/26 96.7   0.5 1602 52.3   8.0 0628 - - - - - - - - - - - 0   0
To Kalon 8/27/26 95.6   1.5 1601 52.7   7.0 0648 55.3   4.7 92   1 21   1 3.0 16.3   4.2 1849 SE | 125 0.00 0.00 0.199   0.009 503   52 60   10
To Kalon Remote (TKN5) 8/27/26 97.0   0.2 1506 52.6   7.3 0640 - - - - - - - - - - - 0   0
Yountville (Ranch 67) 8/27/26 90.6   0.9 1511 51.0   7.3 0634 53.0   4.1 88   3 30   9 3.1 17.4   1.4 1724 E | 91 0.00 0.00 0.205   0.008 567   74 70   10
Stags Leap Dist (Silverado Vineyards) 8/27/26 91.6   1.3 1509 51.9   7.6 0610 53.4   4.4 92   0 29   10 2.5 16.7   2.9 1353 SE | 139 0.00 0.00 0.198   0.016 531   62 80   10
Borreo (Soda Canyon) 8/27/26 89.1   2.0 1459 52.6   7.1 0634 52.6   4.6 92   4 30   7 1.8 13.4   2.7 1730 SSW | 194 0.00 0.00 0.168   0.033 485   130 80   10
Wappo Hill Floor 8/27/26 92.3   0.2 1432 51.2   7.8 0639 54.5   4.4 91   9 31   12 2.5 15.4   3.0 1728 ESE | 118 0.00 0.00 0.184   0.019 484   92 70   10
Stags Leap Dist (Chimney Rock) 8/27/26 90.2   0.8 1452 51.0   7.5 0536 56.8   4.1 98   0 38   9 2.4 14.5   2.9 1703 E | 83 0.00 0.00 0.169   0.014 458   76 70   10
Yountville-South (Ranch 87) 8/27/26 92.7   0.8 1432 52.1   7.2 0515 55.3   4.0 94   1 26   7 1.7 13.2   2.8 1814 S | 178 0.00 0.00 0.166   0.016 452   89 0   0
Yountville-SE (Ranch 85) 8/27/26 90.1   0.3 1456 51.8   6.8 0644 55.5   3.6 92   3 35   10 2.5 18.4   5.7 1730 SSE | 164 0.00 0.00 - 0   0 70   10
Oak Knoll-East (Ranch 53) 8/27/26 90.1   2.8 1452 52.8   7.1 0637 54.0   3.9 88   0 25   9 2.0 13.6   0.9 1725 SE | 130 0.00 0.00 0.183   0.020 514   97 70   10
Napa-NW (Ranch 54) 8/27/26 94.1   1.1 1551 53.1   6.1 0610 53.4   3.2 86   0 19   4 0.8 13.3   6.4 1651 SSW | 202 0.00 0.00 - 0   0 70   10
Napa-North (Ranch 29) 8/27/26 88.7   1.5 1455 53.4   6.5 0700 55.7   3.1 100   0 36   7 1.5 13.0   1.4 1404 S | 178 0.00 0.00 0.109   0.019 270   80 80   10
Max   100.8 - 61.0 - 56.8 100 38 3.3 19.8 - - 0.00 0.00 0.206 567 -
Avg   - - - - 53.5 - - 2.1 - - - - - - - -
Min   88.7 - 50.3 - 48.4 72 7 0.8 10.4 - - 0.00 0.00 0.038 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 8/28/26 4:16 PM 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 8/27/26 92.9   0.9 1343 64.8   3.7 0418 44.6   2.8 56   2 12   3 1.8 12.1   3.2 1417 SSE | 166 0.00 0.00 0.230   0.011 699   6 100   0
Mount George (Napa East) 8/27/26 88.0   0.9 1455 51.8   3.7 0637 52.8   1.1 91   5 31   5 1.2 10.4   2.4 1321 SW | 227 0.00 0.00 0.165   0.023 499   93 70   10
Napa-East (Palmaz 300') 8/27/26 94.6   0.8 1413 54.7   6.7 0700 54.3   3.5 100   0 26   5 0.6 11.0   0.6 1327 W | 268 0.00 0.00 0.134   0.028 389   83 40   10
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') 8/27/26 87.4   1.1 1334 54.3   2.8 0637 50.5   2.0 88   1 24   0 2.3 14.3   2.8 1738 SW | 225 0.00 0.03 0.170   0.026 481   103 80   10
Wooden Valley 8/27/26 91.6   1.5 1405 57.9   10.8 0610 48.5   3.5 77   11 18   3 3.3 15.3   0.9 1346 SSW | 193 0.00 0.00 0.195   0.027 471   126 30   10
Napa-West Upper (Truchard) 8/27/26 90.3   2.9 1427 57.7   6.0 0542 56.4   7.7 100   0 24   24 2.9 20.0   5.5 1631 SW | 216 0.00 0.00 0.197   0.019 517   84 70   10
Napa-West Lower (Truchard) 8/27/26 90.1   2.8 1454 50.2   7.6 0614 53.7   4.1 97   1 26   9 - - - - - - - - 70   10
Napa-South (Toyon Farms) 8/27/26 86.8   4.5 1419 57.6   6.7 0634 58.9   2.9 99   0 43   18 3.5 14.8   0.8 1409 SSE | 166 0.00 0.00 0.103   0.014 226   51 70   10
Toyon Remote 1 8/27/26 88.1   4.6 1544 54.1   8.5 0457 - - - - - - - - - - - -
Toyon Remote 2 8/27/26 86.2   4.7 1551 52.9   8.3 0453 - - - - - - - - - - - -
Toyon Remote 3 8/27/26 89.2   4.9 1547 53.2   8.1 0509 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 8/27/26 90.5   1.3 1447 54.6   8.2 0513 54.6   3.9 92   2 24   6 2.4 16.2   2.5 1347 SSE | 159 0.00 0.00 0.178   0.015 505   84 70   10
Carneros (Saintsbury) 8/27/26 85.6   4.7 1514 53.1   7.6 0647 55.0   3.1 98   2 38   21 3.8 15.3   1.3 1703 S | 184 0.00 0.00 - - 100   10
Suscol Lower (Ranch 35) 8/27/26 88.9   1.1 1446 56.2   7.0 0653 55.6   2.6 92   8 30   2 4.2 14.8   1.5 1558 SW | 214 0.00 0.00 0.178   0.016 472   84 80   10
Suscol Mtn (Ranch 93) 8/27/26 92.2   1.2 1443 59.3   6.3 0549 54.6   1.4 96   1 30   5 3.2 15.0   0.6 1533 WNW | 291 0.00 0.00 - - 80   10
Suscol Upper (Ranch 92) 8/27/26 88.8   0.1 1443 58.9   6.3 0550 41.7   3.8 100   0 0   0 1.9 14.2   3.2 1742 SSW | 203 0.00 0.00 - - 80   10
Stanly (Ranch 45) 8/25/26 85.3   8.1 1757 54.4   4.5 0409 53.8   0.8 92   2 26   22 4.4 15.5   0.3 1728 SSW | 205 0.00 0.00 0.196   0.004 578   61 100   0
Carneros Upper (Ranch 81) 8/27/26 89.2   0.2 1431 59.3   5.6 0523 54.4   2.7 - - 5.9 19.4   1.1 1559 SW | 231 - - - - 70   10
Carneros (Mitsuko) 8/27/26 87.4   3.2 1433 50.4   7.6 0539 - - - - - - - - - - - 100   20
Carneros Lower (Ranch 81) 8/27/26 89.2   3.6 1433 54.8   8.0 0453 54.5   3.8 100   0 0   0 2.0 14.0   1.8 1343 SSE | 161 0.00 0.00 0.036   0.007 0   1 70   10
Carneros (Milton Rd) 8/27/26 85.5   3.4 1355 53.1   8.5 0328 55.4   3.4 92   0 38   18 - - - - 0.00 0.00 - - 100   10
Max   94.6 - 64.8 - 58.9 100 43 5.9 20.0 - - 0.00 0.03 0.230 699 -
Avg   - - - - 52.8 - - 2.8 - - - - - - - -
Min   85.5 - 50.2 - 41.7 56 0 0.6 10.4 - - 0.00 0.00 0.036 0 -