Monthly outlook for Brownlee Park, MI: average high 83.6°, average low 62.3°. That is 3° above the climate normal for August. Precipitation is expected on 5 days (about 2.2 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 23 August (99.3°), the coolest 15 August (53.4°).
83.6°/62.3°
Average high / low
+3°
Above normal
5 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
80.5°
78.6°
+1.1°
19 August – 28 August
88.8°
78.2°
+5.9°
29 August – 7 September
at normal
76.6°
—
August records over 66 years
93.7°1 August 2007All-time high
43.5°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Marshall (10 mi).
Mon, 1086° / 70°1.63
86 °
Brownlee Park, Monday, 10 August
Heavy rain. High 86°, low 70°.
Pressure29.91 inHg
Wind11.3 mph SW
Humidity80%
Visibility6.2 mi
Dew point71°
Tue, 1185° / 61°0.23
85 °
Brownlee Park, Tuesday, 11 August
Rain. High 85°, low 61°.
Pressure29.94 inHg
Wind12 mph S
Humidity55%
Visibility6.2 mi
Dew point62°
Wed, 1285° / 63°0
85 °
Brownlee Park, Wednesday, 12 August
Mostly clear. High 85°, low 63°.
Pressure29.80 inHg
Wind6.8 mph N
Humidity57%
Visibility6.2 mi
Dew point63°
Thu, 1375° / 58°0
75 °
Brownlee Park, Thursday, 13 August
Overcast. High 75°, low 58°.
Pressure29.97 inHg
Wind6.9 mph N
Humidity50%
Visibility—
Dew point54°
Fri, 1475° / 56°0
75 °
Brownlee Park, Friday, 14 August
Clear. High 75°, low 56°.
Pressure30.15 inHg
Wind10.5 mph NE
Humidity44%
Visibility—
Dew point48°
Sat, 1576° / 53°0
76 °
Brownlee Park, Saturday, 15 August
Overcast. High 76°, low 53°.
Pressure30.27 inHg
Wind7.6 mph SE
Humidity44%
Visibility—
Dew point49°
Sun, 1673° / 56°0.03
73 °
Brownlee Park, Sunday, 16 August
Light rain. High 73°, low 56°.
Pressure30.12 inHg
Wind8 mph S
Humidity56%
Visibility—
Dew point54°
Mon, 1782° / 62°0
82 °
Brownlee Park, Monday, 17 August
Overcast. High 82°, low 62°.
Pressure30.03 inHg
Wind10.4 mph NW
Humidity44%
Visibility—
Dew point54°
Tue, 1881° / 58°0
81 °
Brownlee Park, Tuesday, 18 August
Partly cloudy. High 81°, low 58°.
Pressure30.03 inHg
Wind6.6 mph SW
Humidity45%
Visibility—
Dew point55°
Wed, 1981° / 63°0.05
81 °
Brownlee Park, Wednesday, 19 August
Light rain. High 81°, low 63°.
Pressure30.00 inHg
Wind10.5 mph S
Humidity59%
Visibility—
Dew point61°
Thu, 2093° / 69°0
93 °
Brownlee Park, Thursday, 20 August
Overcast. High 93°, low 69°.
Pressure29.80 inHg
Wind12.4 mph SW
Humidity48%
Visibility—
Dew point66°
Fri, 2195° / 71°0
95 °
Brownlee Park, Friday, 21 August
Clear. High 95°, low 71°.
Pressure29.88 inHg
Wind9.7 mph NE
Humidity34%
Visibility—
Dew point57°
Sat, 2289° / 65°0
89 °
Brownlee Park, Saturday, 22 August
Mostly clear. High 89°, low 65°.
Pressure29.94 inHg
Wind11.9 mph S
Humidity48%
Visibility—
Dew point63°
Sun, 2399° / 68°0
99 °
Brownlee Park, Sunday, 23 August
Partly cloudy. High 99°, low 68°.
Pressure29.80 inHg
Wind12.7 mph SW
Humidity30%
Visibility—
Dew point60°
Mon, 2476° / 64°0.17
76 °
Brownlee Park, Monday, 24 August
Rain. High 76°, low 64°.
Pressure30.06 inHg
Wind9.2 mph E
Humidity83%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2579° / 62°0.04
79 °
Brownlee Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.04 in
Chance of precipitation18%
Record high91° (2021)
Record low49° (2017)
Wed, 2679° / 62°0.11
79 °
Brownlee Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation33%
Record high91° (2024)
Record low49° (2017)
Thu, 2779° / 63°0.12
79 °
Brownlee Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.12 in
Chance of precipitation42%
Record high92° (2024)
Record low47° (2025)
Fri, 2878° / 63°0.15
78 °
Brownlee Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.15 in
Chance of precipitation37%
Record high91° (1973)
Record low45° (1986)
Sat, 2977° / 62°0.11
77 °
Brownlee Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.11 in
Chance of precipitation35%
Record high89° (1973)
Record low44° (1965)
Sun, 3078° / 61°0.07
78 °
Brownlee Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation27%
Record high89° (1970)
Record low46° (1986)
Mon, 3177° / 60°0.07
77 °
Brownlee Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.07 in
Chance of precipitation20%
Record high90° (2012)
Record low47° (2009)
Tue, 0176° / 60°0.12
76 °
Brownlee Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.12 in
Chance of precipitation33%
Record high90° (2011)
Record low46° (1967)
Wed, 0277° / 60°0.07
77 °
Brownlee Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.07 in
Chance of precipitation28%
Record high92° (2011)
Record low48° (1994)
Thu, 0377° / 60°0.07
77 °
Brownlee Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.07 in
Chance of precipitation30%
Record high91° (2011)
Record low45° (1974)
Fri, 0476° / 59°0.05
76 °
Brownlee Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.05 in
Chance of precipitation27%
Record high88° (1999)
Record low44° (1997)
Sat, 0576° / 59°0.06
76 °
Brownlee Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.06 in
Chance of precipitation23%
Record high89° (2023)
Record low46° (1974)
Sun, 0676° / 59°0.07
76 °
Brownlee Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.07 in
Chance of precipitation37%
Record high87° (1998)
Record low44° (1988)
Mon, 0776° / 59°0.08
76 °
Brownlee Park, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.08 in
Chance of precipitation37%
Record high89° (1960)
Record low44° (2025)
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 Brownlee Park, MI 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 Brownlee Park, MI 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.