Monthly outlook for Mountain View, CO: average high 91.8°, average low 69.6°. That is 5.3° above the climate normal for August. Precipitation is expected on 6 days (about 2.1 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 11 August (99.5°), the coolest 10 August (61.8°).
91.8°/69.6°
Average high / low
+5.3°
Above normal
6 / 4
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
93.3°
82.5°
+6°
18 August – 27 August
89.5°
82°
+4.1°
28 August – 6 September
at normal
81°
—
August records over 66 years
100.9°4 August 2024All-time high
41°28 August 2004All-time low
Sun, 0995° / 65°0
95 °
Mountain View, Sunday, 9 August
Overcast. High 95°, low 65°.
Pressure29.77 inHg
Wind6.4 mph SE
Humidity10%
Visibility6.2 mi
Dew point30°
Mon, 1098° / 62°0.02
98 °
Mountain View, Monday, 10 August
Light rain. High 98°, low 62°.
Pressure29.80 inHg
Wind8.1 mph E
Humidity15%
Visibility6.2 mi
Dew point38°
Tue, 1199° / 76°0.01
99 °
Mountain View, Tuesday, 11 August
Light rain. High 99°, low 76°.
Pressure29.80 inHg
Wind5.8 mph E
Humidity13%
Visibility6.2 mi
Dew point37°
Wed, 1299° / 75°0.02
99 °
Mountain View, Wednesday, 12 August
Light rain. High 99°, low 75°.
Pressure29.77 inHg
Wind3.8 mph E
Humidity17%
Visibility6.2 mi
Dew point41°
Thu, 1388° / 71°0.29
88 °
Mountain View, Thursday, 13 August
Rain. High 88°, low 71°.
Pressure29.91 inHg
Wind10.5 mph SW
Humidity39%
Visibility—
Dew point52°
Fri, 1483° / 67°0.71
83 °
Mountain View, Friday, 14 August
Heavy rain. High 83°, low 67°.
Pressure29.94 inHg
Wind12 mph NW
Humidity40%
Visibility—
Dew point53°
Sat, 1588° / 68°0.22
88 °
Mountain View, Saturday, 15 August
Rain. High 88°, low 68°.
Pressure30.00 inHg
Wind8.1 mph S
Humidity31%
Visibility—
Dew point49°
Sun, 1694° / 71°0.06
94 °
Mountain View, Sunday, 16 August
Light rain. High 94°, low 71°.
Pressure30.00 inHg
Wind18.6 mph SW
Humidity23%
Visibility—
Dew point45°
Mon, 1791° / 72°0.02
91 °
Mountain View, Monday, 17 August
Light rain. High 91°, low 72°.
Pressure30.00 inHg
Wind16.8 mph W
Humidity24%
Visibility—
Dew point45°
Tue, 1892° / 71°0.02
92 °
Mountain View, Tuesday, 18 August
Light rain. High 92°, low 71°.
Pressure30.00 inHg
Wind10.7 mph SW
Humidity25%
Visibility—
Dew point45°
Wed, 1989° / 71°0.13
89 °
Mountain View, Wednesday, 19 August
Light rain. High 89°, low 71°.
Pressure29.88 inHg
Wind8.6 mph W
Humidity23%
Visibility—
Dew point45°
Thu, 2087° / 68°0.56
87 °
Mountain View, Thursday, 20 August
Heavy rain. High 87°, low 68°.
Pressure29.97 inHg
Wind7.5 mph NE
Humidity39%
Visibility—
Dew point53°
Fri, 2191° / 68°0
91 °
Mountain View, Friday, 21 August
Clear. High 91°, low 68°.
Pressure29.94 inHg
Wind6 mph NE
Humidity31%
Visibility—
Dew point49°
Sat, 2289° / 74°0.01
89 °
Mountain View, Saturday, 22 August
Light rain. High 89°, low 74°.
Pressure29.88 inHg
Wind9.1 mph NE
Humidity24%
Visibility—
Dew point46°
Sun, 2388° / 68°0.01
88 °
Mountain View, Sunday, 23 August
Light rain. High 88°, low 68°.
Pressure30.00 inHg
Wind12.7 mph NE
Humidity35%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 56°0.06
82 °
Mountain View, Monday, 24 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.06 in
Chance of precipitation17%
Record high98° (2020)
Record low45° (1968)
Tue, 2582° / 56°0.04
82 °
Mountain View, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.04 in
Chance of precipitation17%
Record high96° (2020)
Record low46° (1972)
Wed, 2682° / 56°0.06
82 °
Mountain View, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.06 in
Chance of precipitation25%
Record high93° (2020)
Record low47° (1992)
Thu, 2781° / 56°0.04
81 °
Mountain View, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low56°
Average precipitation0.04 in
Chance of precipitation15%
Record high95° (2020)
Record low42° (1992)
Fri, 2881° / 55°0.03
81 °
Mountain View, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low55°
Average precipitation0.03 in
Chance of precipitation20%
Record high93° (2024)
Record low41° (2004)
Sat, 2982° / 55°0.02
82 °
Mountain View, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.02 in
Chance of precipitation17%
Record high92° (2012)
Record low46° (2004)
Sun, 3082° / 55°0.04
82 °
Mountain View, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.04 in
Chance of precipitation18%
Record high93° (2023)
Record low44° (1964)
Mon, 3181° / 55°0.03
81 °
Mountain View, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low55°
Average precipitation0.03 in
Chance of precipitation17%
Record high95° (2023)
Record low44° (1968)
Tue, 0181° / 54°0.05
81 °
Mountain View, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low54°
Average precipitation0.05 in
Chance of precipitation23%
Record high96° (2023)
Record low43° (1965)
Wed, 0281° / 54°0.04
81 °
Mountain View, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low54°
Average precipitation0.04 in
Chance of precipitation18%
Record high97° (2019)
Record low40° (1974)
Thu, 0381° / 54°0.02
81 °
Mountain View, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low54°
Average precipitation0.02 in
Chance of precipitation18%
Record high93° (2017)
Record low36° (1961)
Fri, 0481° / 53°0.03
81 °
Mountain View, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low53°
Average precipitation0.03 in
Chance of precipitation13%
Record high94° (2022)
Record low39° (1961)
Sat, 0581° / 53°0.02
81 °
Mountain View, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low53°
Average precipitation0.02 in
Chance of precipitation13%
Record high99° (2020)
Record low42° (1968)
Sun, 0681° / 53°0.02
81 °
Mountain View, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low53°
Average precipitation0.02 in
Chance of precipitation17%
Record high98° (2022)
Record low43° (1968)
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 Mountain View, CO 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 Mountain View, CO 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.