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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 8/31/26 5:42 PM PDT
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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 8/30/26 84.7   0.9 1254 50.7   2.2 0229 - - - - - - - 0.00 0.00 - - 70   20
Pope Valley (Weeks Lake) 8/30/26 89.6   2.6 1557 42.6   3.1 0645 46.9   0.7 100   0 18   2 1.6   0.1 12.9   0.4 1207 SE | 125 0.00 0.00 0.184   0.001 537   6 0   10
Dollarhide Base 8/30/26 93.1   3.3 1402 50.7   1.7 0655 52.3   0.3 96   2 21   6 2.8   0.1 14.2   0.5 1151 ENE | 74 0.00 0.00 0.215   0.002 589   7 0   10
Dollarhide 1AS Remote 8/30/26 93.6   2.8 1600 43.8   3.0 0614 49.8   0.1 90   2 22   5 2.4   0.3 14.7   2.2 1736 SW | 229 - - - - 0   10
Dollarhide 16A Remote 8/30/26 92.5   4.3 1521 49.0   2.3 0635 51.8   0.1 95   3 22   9 - - - - - - - - 0   10
Dollarhide 18A Remote 8/30/26 90.8   4.3 1544 41.8   3.4 0624 49.0   0.2 95   4 22   1 - - - - - - - - 0   10
Hardin Rd (Eakle) 8/30/26 90.9   2.2 1607 46.5   1.9 0643 - - - - - - - - - - - 0   10
Angwin 8/30/26 81.4   1.4 1604 60.1   0.7 0142 45.1   3.5 54   1 22   2 3.8   1.1 15.1   1.7 0911 NNW | 332 0.00 0.00 0.064   0.012 0   0 100   0
Lower Angwin (Pioneer) 8/30/26 82.7   2.2 1547 42.0   1.8 0616 - - - 1.9   0.1 11.1   0.4 0948 NE | 40 - - - - 100   10
Las Posadas (Cal Fire) 8/30/26 84.4   1.7 1553 48.2   0.8 0642 50.8   0.2 92   8 28   4 7.6   0.5 18.1   0.1 1900 SW | 230 0.00 0.00 0.204   0.002 537   4 -
Deer Park 8/30/26 85.1   1.1 1608 52.8   0.1 0515 52.2   0.9 92   6 33   2 3.8   0.7 10.7   2.9 1730 SSE | 153 0.00 0.00 0.145   0.002 375   5 60   20
Lower Chiles Valley (Brown) 8/30/26 86.8   2.1 1617 47.5   1.6 0518 51.0   0.3 93   7 26   0 4.0   0.8 13.8   0.5 1501 W | 275 0.00 0.01 0.188   0.008 579   10 30   10
Moss Creek Vineyard/Reservior 8/30/26 90.8   0.6 1551 48.2   1.6 0625 49.5   0.2 94   3 21   1 - - - - 0.00 0.00 - - 0   10
Max   93.6 - 60.1 - 52.3 100 33 7.6 18.1 - - 0.00 0.01 0.215 589 -
Avg   - - - - 49.8 - - 3.5 - - - - - - - -
Min   81.4 - 41.8 - 45.1 54 18 1.6 10.7 - - 0.00 0.00 0.064 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 8/31/26 5:42 PM PDT
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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 8/30/26 92.5   2.2 1443 46.2   0.9 0631 52.9   0.7 96   2 31   5 - - - - 0.00 0.00 - - 0   10
Diamond Mtn (Schramsberg) 8/30/26 84.2   1.4 1600 52.0   0.6 0644 51.8   0.3 100   0 32   14 - - - - 0.00 0.00 - - 60   20
Diamond Mtn (McEachran) 8/30/26 85.8   1.8 1712 51.7   0.5 0652 51.4   0.0 92   4 32   14 - - - - - - - - 30   20
St. Helena-North 8/30/26 86.1   1.6 1525 48.2   2.2 0651 50.3   0.1 89   2 30   4 3.8 13.6   0.2 1104 SE | 146 0.00 0.00 0.176   0.001 486   0 0   10
St. Helena (NVV Office) 8/30/26 84.5   1.3 1611 49.1   1.0 0642 - - - 1.5 13.2   3.2 1535 E | 84 0.00 0.00 - - 30   20
Tiara Fria (East St. Helena) 8/30/26 83.2   0.9 1618 46.8   0.3 0606 51.7   0.2 92   4 37   1 2.2 10.5   2.3 1701 E | 98 0.00 0.00 - - 60   20
Prisoner Winery 8/30/26 87.1   1.4 1510 45.2   1.5 0645 52.1   0.8 98   0 33   0 1.3 8.8   0.5 1445 E | 90 0.00 0.00 0.026   0.001 0   0 0   10
Rutherford Hill Estate 8/30/26 84.2   0.9 1600 51.2   2.0 0638 53.2   1.1 93   7 35   1 1.7 11.2   2.8 1416 S | 183 0.00 0.00 0.152   0.004 489   23 60   20
Rutherford-North (Mee Ln) 8/30/26 82.4   1.6 1557 42.8   0.9 0629 50.5   0.7 93   2 37   0 3.0 15.3   0.7 1745 ESE | 123 0.00 0.00 0.159   0.004 461   26 60   20
Rutherford (STS) 8/30/26 84.2   1.8 1526 43.2   1.5 0624 52.9   0.8 91   0 41   0 2.1 13.2   1.4 1639 SE | 124 0.00 0.00 0.176   0.005 552   29 60   20
Oakville-NE (Ranch 88) 8/30/26 82.4   1.6 1537 43.3   1.1 0634 49.6   1.0 96   4 35   1 2.5 15.2   2.4 1455 S | 172 0.00 0.00 0.164   0.003 480   26 100   0
OV561-East 8/30/26 83.6   0.5 1558 45.8   1.2 0547 - - - - - - - - - - - 60   20
Oakville 8/30/26 79.3   1.8 1539 43.9   1.0 0600 50.8   1.0 91   4 41   1 3.9 17.2   3.2 1445 SE | 133 0.00 0.00 0.175   0.003 539   29 100   20
OV518-West 8/30/26 79.4   1.8 1547 44.3   1.8 0638 - - - - - - - - - - - 100   20
To Kalon Remote (TKKE) 8/30/26 83.3   1.2 1529 45.0   1.2 0545 - - - - - - - - - - - 60   20
To Kalon 8/30/26 80.6   1.6 1546 46.0   1.0 0633 52.6   0.9 96   2 41   2 3.7 15.6   2.5 1727 SE | 136 0.00 0.00 0.168   0.003 498   24 90   20
To Kalon Remote (TKN5) 8/30/26 83.9   0.2 1536 45.5   1.3 0552 - - - - - - - - - - - 60   20
Yountville (Ranch 67) 8/30/26 77.8   2.5 1520 43.4   1.8 0609 50.2   0.9 91   2 41   0 3.9 15.9   2.0 1543 SSE | 168 0.00 0.00 0.172   0.004 589   6 100   20
Stags Leap Dist (Silverado Vineyards) 8/30/26 78.6   2.0 1537 43.5   2.0 0537 50.4   0.8 92   1 40   1 3.1 17.3   0.9 1622 S | 183 0.00 0.00 0.166   0.007 512   21 80   20
Borreo (Soda Canyon) 8/30/26 78.2   0.1 1547 46.2   0.7 0525 50.7   0.4 94   2 38   3 1.8 9.4   1.9 1612 S | 177 0.00 0.00 0.156   0.003 530   6 80   20
Wappo Hill Floor 8/30/26 79.7   2.1 1531 43.4   0.8 0542 51.6   0.8 100   0 41   0 2.9 14.9   1.4 1732 ESE | 118 0.00 0.00 0.165   0.003 521   7 100   0
Stags Leap Dist (Chimney Rock) 8/30/26 78.8   1.5 1554 42.8   2.4 0543 53.1   0.5 98   0 48   1 2.6 12.1   2.1 1424 SSE | 151 0.00 0.00 0.145   0.002 472   9 100   20
Yountville-South (Ranch 87) 8/30/26 81.6   1.5 1526 44.5   0.9 0544 52.0   0.8 100   0 38   7 1.8 11.1   1.6 1729 S | 186 0.00 0.00 0.158   0.003 511   5 60   20
Yountville-SE (Ranch 85) 8/30/26 77.6   2.0 1522 45.2   0.9 0539 52.6   0.6 94   6 45   1 2.8 13.0   0.7 1740 S | 177 0.00 0.00 - 0   0 100   20
Oak Knoll-East (Ranch 53) 8/30/26 79.1   1.9 1516 46.1   0.9 0516 51.6   0.4 91   3 39   1 2.3 13.4   1.2 1716 SSE | 147 0.00 0.00 0.162   0.000 534   17 100   0
Napa-NW (Ranch 54) 8/30/26 80.7   3.6 1518 47.0   0.2 0523 51.8   0.5 92   2 39   10 0.6 6.7   3.1 1237 ESE | 118 0.00 0.00 - 0   0 100   0
Napa-North (Ranch 29) 8/30/26 76.9   0.8 1530 46.7   0.0 0516 52.9   0.5 100   0 45   1 1.7 13.5   0.7 1644 S | 172 0.00 0.00 0.111   0.004 344   4 100   10
Max   92.5 - 52.0 - 53.2 100 48 3.9 17.3 - - 0.00 0.00 0.176 589 -
Avg   - - - - 51.7 - - 2.5 - - - - - - - -
Min   76.9 - 42.8 - 49.6 89 30 0.6 6.7 - - 0.00 0.00 0.026 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 8/31/26 5:42 PM PDT
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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 8/30/26 79.1   1.2 1633 51.7   2.8 0804 51.2   1.2 95   7 39   6 1.5 10.3   2.8 1422 SSE | 157 0.00 0.00 0.159   0.004 562   14 100   0
Mount George (Napa East) 8/30/26 76.6   0.8 1533 49.6   5.0 0509 52.0   0.7 96   1 41   1 1.6 10.0   0.3 1551 W | 270 0.00 0.00 0.150   0.000 521   13 70   10
Napa-East (Palmaz 300') 8/30/26 81.6   0.9 1448 51.9   4.4 0245 52.8   0.3 100   0 36   1 0.4 10.7   0.2 1257 SSW | 210 0.00 0.00 0.133   0.012 442   4 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') 8/30/26 74.9   0.7 1604 50.4   2.7 0253 52.6   0.4 100   0 45   2 2.8 12.4   1.2 1349 SW | 231 0.00 0.03 0.151   0.004 530   12 80   10
Wooden Valley 8/30/26 81.0   0.3 1625 54.1   4.3 0641 50.7   0.1 88   5 34   2 4.4 13.4   1.7 1038 W | 277 0.00 0.00 0.181   0.009 580   14 60   20
Napa-West Upper (Truchard) 8/30/26 78.8   2.3 1515 51.4   1.3 0411 54.4   35.4 100   0 41   41 3.0 12.4   4.2 1531 SSE | 147 0.00 0.00 0.165   0.006 525   8 100   20
Napa-West Lower (Truchard) 8/30/26 78.5   2.0 1503 42.5   0.8 0357 50.6   0.5 94   0 41   3 - - - - - - - - 100   20
Napa-South (Toyon Farms) 8/30/26 75.4   3.4 1459 51.0   0.4 0454 55.3   0.5 98   2 52   3 3.1 13.3   2.7 1836 S | 173 0.00 0.00 0.089   0.011 282   4 70   10
Toyon Remote 1 8/30/26 75.7   3.1 1440 46.0   0.3 0248 - - - - - - - - - - - -
Toyon Remote 2 8/30/26 75.7   2.1 1504 46.0   1.7 0302 - - - - - - - - - - - -
Toyon Remote 3 8/30/26 76.8   3.5 1500 45.9   1.9 0338 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 8/30/26 75.9   4.3 1630 48.5   1.1 0352 51.9   0.6 92   4 45   8 2.6 14.4   2.3 1616 SE | 137 0.00 0.00 0.155   0.002 523   4 100   20
Carneros (Saintsbury) 8/30/26 74.6   3.5 1450 46.1   2.8 0422 51.8   0.6 100   0 47   6 - 14.7   3.3 1632 S | 174 0.00 0.00 - - 90   10
Suscol Lower (Ranch 35) 8/30/26 75.2   2.1 1455 51.5   2.6 0445 52.6   0.4 92   8 43   1 4.8 14.0   3.9 1647 SSW | 206 0.00 0.00 0.145   0.005 467   14 80   10
Suscol Mtn (Ranch 93) 8/30/26 78.8   0.2 1516 53.7   1.3 0428 53.6   0.2 97   3 44   0 4.2 15.1   4.0 1302 WNW | 303 0.00 0.00 - - 80   10
Suscol Upper (Ranch 92) 8/30/26 75.1   1.8 1513 53.8   1.3 0415 38.2   26.7 100   0 0   0 2.2 12.4   3.5 1210 SW | 233 0.00 0.00 - - 50   10
Stanly (Ranch 45) 8/30/26 73.6   2.0 1554 46.1   1.6 0400 52.5   0.3 94   2 48   1 5.4 14.1   3.9 1008 WNW | 287 0.00 0.00 0.169   0.004 568   15 90   10
Carneros Upper (Ranch 81) 8/30/26 77.4   0.9 1455 54.6   2.9 0055 51.8   19.1 - - 4.0 16.7   4.6 1246 SSW | 198 - - - - 70   10
Carneros (Mitsuko) 8/30/26 74.4   5.2 1605 44.3   3.0 0214 - - - - - - - - - - - 90   10
Carneros Lower (Ranch 81) 8/30/26 76.7   3.2 1435 47.7   0.9 0340 51.9   9.5 100   0 45   45 2.0 11.8   3.3 1158 SSE | 158 0.00 0.00 0.024   0.003 0   1 70   10
Carneros (Milton Rd) 8/30/26 74.2   1.4 1532 46.4   2.4 0342 52.4   0.9 92   2 48   1 - - - - 0.00 0.00 - - 90   10
Max   81.6 - 54.6 - 55.3 100 52 5.4 16.7 - - 0.00 0.03 0.181 580 -
Avg   - - - - 51.5 - - 3.0 - - - - - - - -
Min   73.6 - 42.5 - 38.2 88 0 0.4 10.0 - - 0.00 0.00 0.024 0 -