Monthly outlook for Winters, CA: average high 99.1°, average low 62.8°. That is 5.6° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 10 August (105.7°), the coolest 15 August (59.4°).
99.1°/62.8°
Average high / low
+5.6°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
96.8°
90°
+3.8°
18 August – 27 August
102.9°
88°
+8.2°
28 August – 6 September
at normal
89.6°
—
August records over 66 years
111°17 August 2020All-time high
52°23 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Vacaville (12 mi).
Sun, 0998° / 63°0
98 °
Winters, Sunday, 9 August
Clear. High 98°, low 63°.
Pressure29.77 inHg
Wind3.3 mph NE
Humidity13%
Visibility6.2 mi
Dew point41°
Mon, 10106° / 60°0
106 °
Winters, Monday, 10 August
Clear. High 106°, low 60°.
Pressure29.80 inHg
Wind6.2 mph SE
Humidity14%
Visibility6.2 mi
Dew point40°
Tue, 11104° / 62°0
104 °
Winters, Tuesday, 11 August
Clear. High 104°, low 62°.
Pressure29.88 inHg
Wind4.5 mph SE
Humidity16%
Visibility6.2 mi
Dew point42°
Wed, 1299° / 62°0
99 °
Winters, Wednesday, 12 August
Overcast. High 99°, low 62°.
Pressure29.80 inHg
Wind6.5 mph SE
Humidity17%
Visibility6.2 mi
Dew point42°
Thu, 1395° / 62°0
95 °
Winters, Thursday, 13 August
Partly cloudy. High 95°, low 62°.
Pressure29.77 inHg
Wind9.5 mph S
Humidity19%
Visibility—
Dew point43°
Fri, 1488° / 64°0
88 °
Winters, Friday, 14 August
Overcast. High 88°, low 64°.
Pressure29.85 inHg
Wind8.4 mph SW
Humidity26%
Visibility—
Dew point47°
Sat, 1595° / 59°0
95 °
Winters, Saturday, 15 August
Clear. High 95°, low 59°.
Pressure29.91 inHg
Wind10.2 mph SW
Humidity18%
Visibility—
Dew point42°
Sun, 1697° / 60°0
97 °
Winters, Sunday, 16 August
Overcast. High 97°, low 60°.
Pressure29.94 inHg
Wind9.7 mph SW
Humidity14%
Visibility—
Dew point36°
Mon, 1795° / 65°0
95 °
Winters, Monday, 17 August
Overcast. High 95°, low 65°.
Pressure30.00 inHg
Wind8.5 mph SW
Humidity11%
Visibility—
Dew point29°
Tue, 18100° / 62°0
100 °
Winters, Tuesday, 18 August
Clear. High 100°, low 62°.
Pressure29.94 inHg
Wind9.6 mph SW
Humidity10%
Visibility—
Dew point30°
Wed, 19102° / 62°0
102 °
Winters, Wednesday, 19 August
Clear. High 102°, low 62°.
Pressure29.85 inHg
Wind10.6 mph SW
Humidity10%
Visibility—
Dew point32°
Thu, 20101° / 62°0
101 °
Winters, Thursday, 20 August
Clear. High 101°, low 62°.
Pressure29.85 inHg
Wind7.7 mph S
Humidity13%
Visibility—
Dew point37°
Fri, 21104° / 65°0
104 °
Winters, Friday, 21 August
Clear. High 104°, low 65°.
Pressure29.83 inHg
Wind7.3 mph S
Humidity15%
Visibility—
Dew point43°
Sat, 22106° / 69°0
106 °
Winters, Saturday, 22 August
Overcast. High 106°, low 69°.
Pressure29.77 inHg
Wind8.6 mph SW
Humidity13%
Visibility—
Dew point42°
Sun, 23105° / 65°0
105 °
Winters, Sunday, 23 August
Mostly clear. High 105°, low 65°.
Pressure29.77 inHg
Wind9.2 mph SW
Humidity12%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2489° / 60°0
89 °
Winters, Monday, 24 August
Climate normal for this date — 60-year average.
Average high89°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2010)
Record low53° (2021)
Tue, 2588° / 59°0
88 °
Winters, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high106° (1972)
Record low54° (2021)
Wed, 2689° / 59°0
89 °
Winters, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high89°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high104° (1988)
Record low54° (1970)
Thu, 2790° / 60°0
90 °
Winters, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high90°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2017)
Record low53° (2012)
Fri, 2891° / 60°0
91 °
Winters, Friday, 28 August
Climate normal for this date — 60-year average.
Average high91°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high106° (2008)
Record low55° (1995)
Sat, 2989° / 60°0
89 °
Winters, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high89°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high103° (1977)
Record low53° (1980)
Sun, 3089° / 60°0
89 °
Winters, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high89°
Average low60°
Average precipitation0 in
Chance of precipitation3%
Record high103° (2023)
Record low54° (2010)
Mon, 3189° / 60°0
89 °
Winters, Monday, 31 August
Climate normal for this date — 60-year average.
Average high89°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high101° (1998)
Record low54° (1970)
Tue, 0190° / 60°0
90 °
Winters, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high90°
Average low60°
Average precipitation0 in
Chance of precipitation2%
Record high109° (2017)
Record low54° (1964)
Wed, 0290° / 60°0
90 °
Winters, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high90°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high107° (2017)
Record low53° (2021)
Thu, 0390° / 60°0
90 °
Winters, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high90°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high102° (1988)
Record low51° (2000)
Fri, 0490° / 60°0
90 °
Winters, Friday, 4 September
Climate normal for this date — 60-year average.
Average high90°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high107° (2022)
Record low51° (2000)
Sat, 0590° / 60°0
90 °
Winters, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high90°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high115° (2022)
Record low53° (1965)
Sun, 0689° / 60°0
89 °
Winters, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high89°
Average low60°
Average precipitation0 in
Chance of precipitation2%
Record high117° (2022)
Record low53° (1973)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Winters, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Winters, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.