Monthly outlook for Hollister, WI: average high 79.1°, average low 57.2°. That is 2.4° above the climate normal for August. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 20 August (93.9°), the coolest 14 August (48.2°).
79.1°/57.2°
Average high / low
+2.4°
Above normal
5 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
77.6°
75.2°
+1.3°
19 August – 28 August
81.6°
74.4°
+4°
29 August – 7 September
at normal
72.4°
—
August records over 66 years
94.8°16 August 1988All-time high
43°27 August 1968All-time low
Climate normals and records are computed from the nearest reference point — White Lake (6 mi).
Mon, 1084° / 61°0
84 °
Hollister, Monday, 10 August
Partly cloudy. High 84°, low 61°.
Pressure29.91 inHg
Wind4.6 mph NW
Humidity42%
Visibility6.2 mi
Dew point55°
Tue, 1182° / 59°0.21
82 °
Hollister, Tuesday, 11 August
Rain. High 82°, low 59°.
Pressure29.85 inHg
Wind4.8 mph S
Humidity80%
Visibility6.2 mi
Dew point65°
Wed, 1279° / 58°0
79 °
Hollister, Wednesday, 12 August
Overcast. High 79°, low 58°.
Pressure29.85 inHg
Wind8.3 mph NW
Humidity34%
Visibility6.2 mi
Dew point47°
Thu, 1374° / 50°0
74 °
Hollister, Thursday, 13 August
Overcast. High 74°, low 50°.
Pressure30.03 inHg
Wind5.7 mph NW
Humidity34%
Visibility—
Dew point39°
Fri, 1475° / 48°0
75 °
Hollister, Friday, 14 August
Overcast. High 75°, low 48°.
Pressure30.21 inHg
Wind4.3 mph E
Humidity36%
Visibility—
Dew point42°
Sat, 1576° / 51°0
76 °
Hollister, Saturday, 15 August
Overcast. High 76°, low 51°.
Pressure30.27 inHg
Wind5.3 mph SE
Humidity36%
Visibility—
Dew point43°
Sun, 1671° / 59°0.04
71 °
Hollister, Sunday, 16 August
Light rain. High 71°, low 59°.
Pressure30.09 inHg
Wind7.4 mph NW
Humidity98%
Visibility—
Dew point62°
Mon, 1776° / 55°0
76 °
Hollister, Monday, 17 August
Overcast. High 76°, low 55°.
Pressure30.12 inHg
Wind5.3 mph NW
Humidity39%
Visibility—
Dew point47°
Tue, 1881° / 54°0
81 °
Hollister, Tuesday, 18 August
Overcast. High 81°, low 54°.
Pressure30.00 inHg
Wind8.6 mph S
Humidity40%
Visibility—
Dew point49°
Wed, 1991° / 64°0
91 °
Hollister, Wednesday, 19 August
Overcast. High 91°, low 64°.
Pressure29.85 inHg
Wind9.3 mph SW
Humidity51%
Visibility—
Dew point64°
Thu, 2094° / 68°0.77
94 °
Hollister, Thursday, 20 August
Heavy rain. High 94°, low 68°.
Pressure29.77 inHg
Wind11.1 mph W
Humidity43%
Visibility—
Dew point63°
Fri, 2184° / 59°0
84 °
Hollister, Friday, 21 August
Partly cloudy. High 84°, low 59°.
Pressure29.97 inHg
Wind7.2 mph E
Humidity44%
Visibility—
Dew point54°
Sat, 2279° / 57°0.03
79 °
Hollister, Saturday, 22 August
Light rain. High 79°, low 57°.
Pressure29.94 inHg
Wind9.1 mph SE
Humidity52%
Visibility—
Dew point53°
Sun, 2368° / 59°0.5
68 °
Hollister, Sunday, 23 August
Rain. High 68°, low 59°.
Pressure30.00 inHg
Wind10.3 mph NE
Humidity75%
Visibility—
Dew point57°
Mon, 2473° / 53°0
73 °
Hollister, Monday, 24 August
Overcast. High 73°, low 53°.
Pressure30.12 inHg
Wind10.6 mph E
Humidity58%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 60°0.12
76 °
Hollister, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.12 in
Chance of precipitation27%
Record high91° (2013)
Record low46° (1977)
Wed, 2675° / 60°0.17
75 °
Hollister, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.17 in
Chance of precipitation48%
Record high89° (2020)
Record low47° (1968)
Thu, 2775° / 60°0.22
75 °
Hollister, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.22 in
Chance of precipitation38%
Record high91° (1976)
Record low43° (1968)
Fri, 2874° / 59°0.11
74 °
Hollister, Friday, 28 August
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.11 in
Chance of precipitation35%
Record high87° (1984)
Record low43° (1986)
Sat, 2974° / 58°0.07
74 °
Hollister, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0.07 in
Chance of precipitation32%
Record high87° (1969)
Record low43° (2025)
Sun, 3073° / 58°0.14
73 °
Hollister, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.14 in
Chance of precipitation30%
Record high91° (2012)
Record low46° (1976)
Mon, 3173° / 57°0.07
73 °
Hollister, Monday, 31 August
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0.07 in
Chance of precipitation23%
Record high87° (2000)
Record low44° (2009)
Tue, 0173° / 57°0.1
73 °
Hollister, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0.1 in
Chance of precipitation30%
Record high86° (2011)
Record low44° (1974)
Wed, 0273° / 58°0.12
73 °
Hollister, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.12 in
Chance of precipitation32%
Record high87° (2008)
Record low42° (1976)
Thu, 0372° / 57°0.1
72 °
Hollister, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0.1 in
Chance of precipitation28%
Record high91° (2023)
Record low41° (1974)
Fri, 0472° / 57°0.07
72 °
Hollister, Friday, 4 September
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (2023)
Record low40° (2025)
Sat, 0571° / 56°0.11
71 °
Hollister, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.11 in
Chance of precipitation30%
Record high86° (2007)
Record low43° (1962)
Sun, 0671° / 57°0.11
71 °
Hollister, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high71°
Average low57°
Average precipitation0.11 in
Chance of precipitation40%
Record high87° (1960)
Record low44° (1962)
Mon, 0771° / 56°0.12
71 °
Hollister, Monday, 7 September
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.12 in
Chance of precipitation40%
Record high88° (1976)
Record low43° (1986)
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 Hollister, WI 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 Hollister, WI 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.