Monthly outlook for Hilmar-Irwin, CA: average high 105.2°, average low 68.1°. That is 6.3° 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 23 August (117.9°), the coolest 14 August (57.5°).
105.2°/68.1°
Average high / low
+6.3°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
99.6°
94.9°
+2.6°
19 August – 28 August
114.5°
92.7°
+12.1°
29 August – 7 September
at normal
92.9°
—
August records over 66 years
113.2°15 August 2020All-time high
53.6°23 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Turlock (7 mi).
Mon, 1098° / 69°0
98 °
Hilmar-Irwin, Monday, 10 August
Overcast. High 98°, low 69°.
Pressure29.80 inHg
Wind3.6 mph SW
Humidity9%
Visibility6.2 mi
Dew point34°
Tue, 11109° / 67°0
109 °
Hilmar-Irwin, Tuesday, 11 August
Clear. High 109°, low 67°.
Pressure29.85 inHg
Wind4.2 mph SW
Humidity11%
Visibility6.2 mi
Dew point37°
Wed, 12104° / 66°0
104 °
Hilmar-Irwin, Wednesday, 12 August
Clear. High 104°, low 66°.
Pressure29.77 inHg
Wind5.1 mph SW
Humidity14%
Visibility6.2 mi
Dew point40°
Thu, 1395° / 60°0
95 °
Hilmar-Irwin, Thursday, 13 August
Clear. High 95°, low 60°.
Pressure29.74 inHg
Wind12.9 mph SW
Humidity19%
Visibility—
Dew point42°
Fri, 1496° / 57°0
96 °
Hilmar-Irwin, Friday, 14 August
Clear. High 96°, low 57°.
Pressure29.83 inHg
Wind11.7 mph W
Humidity19%
Visibility—
Dew point42°
Sat, 1598° / 58°0
98 °
Hilmar-Irwin, Saturday, 15 August
Clear. High 98°, low 58°.
Pressure29.91 inHg
Wind10.8 mph W
Humidity17%
Visibility—
Dew point40°
Sun, 1688° / 66°0
88 °
Hilmar-Irwin, Sunday, 16 August
Overcast. High 88°, low 66°.
Pressure30.06 inHg
Wind6.4 mph NW
Humidity30%
Visibility—
Dew point46°
Mon, 17102° / 67°0
102 °
Hilmar-Irwin, Monday, 17 August
Overcast. High 102°, low 67°.
Pressure29.97 inHg
Wind11.6 mph NW
Humidity19%
Visibility—
Dew point46°
Tue, 18106° / 66°0
106 °
Hilmar-Irwin, Tuesday, 18 August
Clear. High 106°, low 66°.
Pressure29.91 inHg
Wind13 mph NW
Humidity12%
Visibility—
Dew point38°
Wed, 19109° / 68°0
109 °
Hilmar-Irwin, Wednesday, 19 August
Overcast. High 109°, low 68°.
Pressure29.85 inHg
Wind13 mph N
Humidity12%
Visibility—
Dew point40°
Thu, 20111° / 72°0
111 °
Hilmar-Irwin, Thursday, 20 August
Overcast. High 111°, low 72°.
Pressure29.80 inHg
Wind11.8 mph N
Humidity11%
Visibility—
Dew point39°
Fri, 21116° / 76°0
116 °
Hilmar-Irwin, Friday, 21 August
Clear. High 116°, low 76°.
Pressure29.71 inHg
Wind10.5 mph NW
Humidity9%
Visibility—
Dew point38°
Sat, 22117° / 77°0
117 °
Hilmar-Irwin, Saturday, 22 August
Overcast. High 117°, low 77°.
Pressure29.77 inHg
Wind12.8 mph NW
Humidity9%
Visibility—
Dew point40°
Sun, 23118° / 77°0
118 °
Hilmar-Irwin, Sunday, 23 August
Partly cloudy. High 118°, low 77°.
Pressure29.80 inHg
Wind12.5 mph N
Humidity8%
Visibility—
Dew point37°
Mon, 24117° / 78°0
117 °
Hilmar-Irwin, Monday, 24 August
Mostly clear. High 117°, low 78°.
Pressure29.77 inHg
Wind15.3 mph NW
Humidity7%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2593° / 64°0
93 °
Hilmar-Irwin, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high106° (2010)
Record low54° (1963)
Wed, 2693° / 64°0
93 °
Hilmar-Irwin, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high105° (2017)
Record low55° (1976)
Thu, 2794° / 64°0
94 °
Hilmar-Irwin, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high105° (2017)
Record low55° (1960)
Fri, 2894° / 64°0
94 °
Hilmar-Irwin, Friday, 28 August
Climate normal for this date — 60-year average.
Average high94°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2017)
Record low56° (1960)
Sat, 2994° / 65°0
94 °
Hilmar-Irwin, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high94°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2021)
Record low55° (2010)
Sun, 3093° / 64°0
93 °
Hilmar-Irwin, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high108° (2021)
Record low55° (2010)
Mon, 3193° / 63°0
93 °
Hilmar-Irwin, Monday, 31 August
Climate normal for this date — 60-year average.
Average high93°
Average low63°
Average precipitation0 in
Chance of precipitation0%
Record high104° (2025)
Record low56° (1975)
Tue, 0193° / 64°0
93 °
Hilmar-Irwin, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation3%
Record high108° (2022)
Record low52° (1964)
Wed, 0294° / 65°0
94 °
Hilmar-Irwin, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high94°
Average low65°
Average precipitation0 in
Chance of precipitation3%
Record high111° (2017)
Record low55° (1960)
Thu, 0393° / 64°0
93 °
Hilmar-Irwin, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high107° (2017)
Record low53° (1964)
Fri, 0493° / 64°0
93 °
Hilmar-Irwin, Friday, 4 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high110° (2022)
Record low53° (2000)
Sat, 0593° / 64°0.01
93 °
Hilmar-Irwin, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0.01 in
Chance of precipitation2%
Record high114° (2022)
Record low55° (1964)
Sun, 0693° / 64°0
93 °
Hilmar-Irwin, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high118° (2022)
Record low55° (1964)
Mon, 0793° / 64°0
93 °
Hilmar-Irwin, Monday, 7 September
Climate normal for this date — 60-year average.
Average high93°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high115° (2020)
Record low54° (1964)
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 Hilmar-Irwin, 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 Hilmar-Irwin, 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.