Monthly outlook for Montezuma, CA: average high 91.6°, average low 61.9°. That is 3.5° 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 9 August (97°), the coolest 16 August (59.6°).
91.6°/61.9°
Average high / low
+3.5°
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
90.4°
86°
+2.4°
18 August – 27 August
93.6°
84.5°
+5.1°
28 August – 6 September
at normal
86.1°
—
August records over 66 years
107.6°16 August 2020All-time high
52.3°29 August 1980All-time low
Climate normals and records are computed from the nearest reference point — Antioch (9 mi).
Sun, 0997° / 64°0
97 °
Montezuma, Sunday, 9 August
Clear. High 97°, low 64°.
Pressure29.80 inHg
Wind5.3 mph W
Humidity18%
Visibility6.2 mi
Dew point44°
Mon, 1095° / 62°0
95 °
Montezuma, Monday, 10 August
Overcast. High 95°, low 62°.
Pressure29.83 inHg
Wind7.7 mph W
Humidity20%
Visibility6.2 mi
Dew point45°
Tue, 1195° / 61°0
95 °
Montezuma, Tuesday, 11 August
Clear. High 95°, low 61°.
Pressure29.88 inHg
Wind6.9 mph W
Humidity23%
Visibility6.2 mi
Dew point46°
Wed, 1293° / 62°0
93 °
Montezuma, Wednesday, 12 August
Mostly clear. High 93°, low 62°.
Pressure29.83 inHg
Wind4.9 mph W
Humidity24%
Visibility6.2 mi
Dew point47°
Thu, 1388° / 62°0
88 °
Montezuma, Thursday, 13 August
Partly cloudy. High 88°, low 62°.
Pressure29.80 inHg
Wind14.7 mph W
Humidity28%
Visibility—
Dew point48°
Fri, 1484° / 63°0
84 °
Montezuma, Friday, 14 August
Overcast. High 84°, low 63°.
Pressure29.88 inHg
Wind12 mph W
Humidity33%
Visibility—
Dew point49°
Sat, 1586° / 60°0
86 °
Montezuma, Saturday, 15 August
Clear. High 86°, low 60°.
Pressure29.97 inHg
Wind13.5 mph W
Humidity28%
Visibility—
Dew point46°
Sun, 1689° / 60°0
89 °
Montezuma, Sunday, 16 August
Overcast. High 89°, low 60°.
Pressure29.97 inHg
Wind12.6 mph W
Humidity21%
Visibility—
Dew point41°
Mon, 1787° / 63°0
87 °
Montezuma, Monday, 17 August
Overcast. High 87°, low 63°.
Pressure30.03 inHg
Wind12.2 mph W
Humidity23%
Visibility—
Dew point42°
Tue, 1894° / 61°0
94 °
Montezuma, Tuesday, 18 August
Clear. High 94°, low 61°.
Pressure29.97 inHg
Wind13.4 mph W
Humidity14%
Visibility—
Dew point35°
Wed, 1992° / 61°0
92 °
Montezuma, Wednesday, 19 August
Clear. High 92°, low 61°.
Pressure29.91 inHg
Wind14 mph SW
Humidity17%
Visibility—
Dew point38°
Thu, 2092° / 61°0
92 °
Montezuma, Thursday, 20 August
Clear. High 92°, low 61°.
Pressure29.88 inHg
Wind13.6 mph W
Humidity22%
Visibility—
Dew point45°
Fri, 2197° / 62°0
97 °
Montezuma, Friday, 21 August
Clear. High 97°, low 62°.
Pressure29.83 inHg
Wind12.1 mph W
Humidity20%
Visibility—
Dew point46°
Sat, 2297° / 66°0
97 °
Montezuma, Saturday, 22 August
Overcast. High 97°, low 66°.
Pressure29.80 inHg
Wind14.2 mph W
Humidity19%
Visibility—
Dew point45°
Sun, 2390° / 62°0
90 °
Montezuma, Sunday, 23 August
Partly cloudy. High 90°, low 62°.
Pressure29.80 inHg
Wind15.4 mph W
Humidity26%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 59°0
85 °
Montezuma, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2010)
Record low53° (1970)
Tue, 2585° / 59°0
85 °
Montezuma, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2010)
Record low54° (1960)
Wed, 2685° / 58°0
85 °
Montezuma, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2017)
Record low54° (1970)
Thu, 2786° / 59°0
86 °
Montezuma, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high103° (2017)
Record low53° (1960)
Fri, 2887° / 60°0
87 °
Montezuma, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high102° (2021)
Record low54° (1960)
Sat, 2985° / 59°0
85 °
Montezuma, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2009)
Record low52° (1980)
Sun, 3085° / 60°0
85 °
Montezuma, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low60°
Average precipitation0 in
Chance of precipitation3%
Record high99° (2025)
Record low53° (2010)
Mon, 3186° / 59°0
86 °
Montezuma, Monday, 31 August
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high100° (2025)
Record low53° (1970)
Tue, 0187° / 59°0
87 °
Montezuma, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2017)
Record low53° (1970)
Wed, 0286° / 60°0
86 °
Montezuma, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high86°
Average low60°
Average precipitation0 in
Chance of precipitation0%
Record high107° (2017)
Record low53° (1960)
Thu, 0386° / 59°0
86 °
Montezuma, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high102° (2017)
Record low52° (1970)
Fri, 0486° / 59°0
86 °
Montezuma, Friday, 4 September
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high102° (2022)
Record low52° (1960)
Sat, 0586° / 59°0
86 °
Montezuma, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation2%
Record high110° (2022)
Record low52° (2000)
Sun, 0686° / 59°0
86 °
Montezuma, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation2%
Record high113° (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 Montezuma, 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 Montezuma, 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.