Monthly outlook for Lake Bruce, IN: average high 78.9°, average low 62.4°. That is 0.6° below the climate normal for August. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 10 August (89.2°), the coolest 21 August (53°).
78.9°/62.4°
Average high / low
−0.6°
Below normal
3 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
79.8°
80.2°
-0.2°
18 August – 27 August
77.5°
80.2°
-1.5°
28 August – 6 September
at normal
79.1°
—
August records over 66 years
95.7°17 August 1988All-time high
43.3°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Rochester (14 mi).
Sun, 0988° / 66°0.01
88 °
Lake Bruce, Sunday, 9 August
Light rain. High 88°, low 66°.
Pressure30.00 inHg
Wind12.2 mph S
Humidity75%
Visibility6.2 mi
Dew point72°
Mon, 1089° / 72°0.6
89 °
Lake Bruce, Monday, 10 August
Heavy rain. High 89°, low 72°.
Pressure29.94 inHg
Wind12 mph S
Humidity73%
Visibility6.2 mi
Dew point73°
Tue, 1183° / 70°0.44
83 °
Lake Bruce, Tuesday, 11 August
Rain. High 83°, low 70°.
Pressure29.85 inHg
Wind19 mph SW
Humidity78%
Visibility6.2 mi
Dew point72°
Wed, 1282° / 67°0.05
82 °
Lake Bruce, Wednesday, 12 August
Light rain. High 82°, low 67°.
Pressure29.83 inHg
Wind5.4 mph NE
Humidity71%
Visibility6.2 mi
Dew point68°
Thu, 1373° / 59°0
73 °
Lake Bruce, Thursday, 13 August
Partly cloudy. High 73°, low 59°.
Pressure30.03 inHg
Wind6.9 mph E
Humidity61%
Visibility—
Dew point57°
Fri, 1476° / 59°0
76 °
Lake Bruce, Friday, 14 August
Clear. High 76°, low 59°.
Pressure30.12 inHg
Wind7 mph NE
Humidity52%
Visibility—
Dew point54°
Sat, 1572° / 59°0
72 °
Lake Bruce, Saturday, 15 August
Overcast. High 72°, low 59°.
Pressure30.30 inHg
Wind7.4 mph NE
Humidity56%
Visibility—
Dew point54°
Sun, 1670° / 61°0
70 °
Lake Bruce, Sunday, 16 August
Overcast. High 70°, low 61°.
Pressure30.15 inHg
Wind4.9 mph SE
Humidity74%
Visibility—
Dew point60°
Mon, 1779° / 62°0
79 °
Lake Bruce, Monday, 17 August
Overcast. High 79°, low 62°.
Pressure30.06 inHg
Wind5.3 mph E
Humidity62%
Visibility—
Dew point61°
Tue, 1882° / 64°0
82 °
Lake Bruce, Tuesday, 18 August
Overcast. High 82°, low 64°.
Pressure30.00 inHg
Wind10.1 mph S
Humidity59%
Visibility—
Dew point64°
Wed, 1977° / 60°0.02
77 °
Lake Bruce, Wednesday, 19 August
Light rain. High 77°, low 60°.
Pressure29.88 inHg
Wind15.1 mph W
Humidity67%
Visibility—
Dew point64°
Thu, 2069° / 57°0
69 °
Lake Bruce, Thursday, 20 August
Light rain. High 69°, low 57°.
Pressure30.03 inHg
Wind18.3 mph N
Humidity60%
Visibility—
Dew point54°
Fri, 2174° / 53°0
74 °
Lake Bruce, Friday, 21 August
Mostly clear. High 74°, low 53°.
Pressure30.09 inHg
Wind9.1 mph N
Humidity51%
Visibility—
Dew point51°
Sat, 2274° / 53°0.02
74 °
Lake Bruce, Saturday, 22 August
Light rain. High 74°, low 53°.
Pressure29.91 inHg
Wind13.8 mph SE
Humidity74%
Visibility—
Dew point59°
Sun, 2389° / 65°0
89 °
Lake Bruce, Sunday, 23 August
Partly cloudy. High 89°, low 65°.
Pressure29.88 inHg
Wind17.7 mph W
Humidity42%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 63°0.09
80 °
Lake Bruce, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation25%
Record high93° (2023)
Record low53° (1987)
Tue, 2580° / 63°0.07
80 °
Lake Bruce, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation27%
Record high91° (2003)
Record low51° (2017)
Wed, 2681° / 64°0.11
81 °
Lake Bruce, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation30%
Record high92° (2020)
Record low52° (2025)
Thu, 2781° / 65°0.12
81 °
Lake Bruce, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation35%
Record high93° (2024)
Record low51° (2025)
Fri, 2880° / 64°0.13
80 °
Lake Bruce, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation38%
Record high90° (2022)
Record low47° (1986)
Sat, 2980° / 63°0.11
80 °
Lake Bruce, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation38%
Record high91° (1991)
Record low43° (1986)
Sun, 3079° / 63°0.07
79 °
Lake Bruce, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.07 in
Chance of precipitation37%
Record high91° (2024)
Record low47° (1986)
Mon, 3179° / 62°0.07
79 °
Lake Bruce, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation28%
Record high91° (2012)
Record low47° (2009)
Tue, 0179° / 62°0.15
79 °
Lake Bruce, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.15 in
Chance of precipitation25%
Record high95° (2011)
Record low47° (1967)
Wed, 0279° / 62°0.07
79 °
Lake Bruce, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high95° (2011)
Record low47° (1965)
Thu, 0379° / 62°0.08
79 °
Lake Bruce, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.08 in
Chance of precipitation27%
Record high93° (2011)
Record low47° (1974)
Fri, 0478° / 61°0.07
78 °
Lake Bruce, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation27%
Record high91° (1999)
Record low47° (1997)
Sat, 0578° / 61°0.04
78 °
Lake Bruce, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.04 in
Chance of precipitation27%
Record high91° (2007)
Record low47° (1974)
Sun, 0678° / 61°0.07
78 °
Lake Bruce, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (1990)
Record low47° (1962)
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 Lake Bruce, IN 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 Lake Bruce, IN 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.