Monthly outlook for West Branch, MI: average high 79°, average low 57.1°. That is 1.2° above the climate normal for August. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 17 August (87°), the coolest 13 August (50.2°).
79°/57.1°
Average high / low
+1.2°
Above normal
4 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
79.9°
77.3°
+1.4°
18 August – 27 August
77.5°
76.4°
+0.7°
28 August – 6 September
at normal
74.8°
—
August records over 66 years
97.5°8 August 2001All-time high
43°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Skidway Lake (11 mi).
Sun, 0982° / 64°0.12
82 °
West Branch, Sunday, 9 August
Rain. High 82°, low 64°.
Pressure29.97 inHg
Wind8.3 mph S
Humidity42%
Visibility6.2 mi
Dew point54°
Mon, 1085° / 65°0
85 °
West Branch, Monday, 10 August
Partly cloudy. High 85°, low 65°.
Pressure29.88 inHg
Wind9.1 mph W
Humidity54%
Visibility6.2 mi
Dew point61°
Tue, 1177° / 60°0.02
77 °
West Branch, Tuesday, 11 August
Light rain. High 77°, low 60°.
Pressure29.85 inHg
Wind9.6 mph SE
Humidity46%
Visibility6.2 mi
Dew point55°
Wed, 1282° / 58°0
82 °
West Branch, Wednesday, 12 August
Mostly clear. High 82°, low 58°.
Pressure29.77 inHg
Wind8.3 mph NW
Humidity42%
Visibility6.2 mi
Dew point54°
Thu, 1369° / 50°0
69 °
West Branch, Thursday, 13 August
Overcast. High 69°, low 50°.
Pressure30.00 inHg
Wind10.7 mph NW
Humidity46%
Visibility—
Dew point44°
Fri, 1477° / 52°0
77 °
West Branch, Friday, 14 August
Mostly clear. High 77°, low 52°.
Pressure30.06 inHg
Wind13.3 mph NW
Humidity33%
Visibility—
Dew point42°
Sat, 1576° / 51°0
76 °
West Branch, Saturday, 15 August
Overcast. High 76°, low 51°.
Pressure30.27 inHg
Wind4.9 mph N
Humidity34%
Visibility—
Dew point43°
Sun, 1683° / 52°0
83 °
West Branch, Sunday, 16 August
Overcast. High 83°, low 52°.
Pressure30.12 inHg
Wind5.7 mph NW
Humidity27%
Visibility—
Dew point41°
Mon, 1787° / 62°0.01
87 °
West Branch, Monday, 17 August
Light rain. High 87°, low 62°.
Pressure29.97 inHg
Wind5.8 mph W
Humidity31%
Visibility—
Dew point48°
Tue, 1887° / 62°0.13
87 °
West Branch, Tuesday, 18 August
Rain. High 87°, low 62°.
Pressure29.91 inHg
Wind11.5 mph SW
Humidity39%
Visibility—
Dew point55°
Wed, 1974° / 58°0.24
74 °
West Branch, Wednesday, 19 August
Rain. High 74°, low 58°.
Pressure29.71 inHg
Wind18.1 mph NW
Humidity51%
Visibility—
Dew point54°
Thu, 2074° / 56°0
74 °
West Branch, Thursday, 20 August
Overcast. High 74°, low 56°.
Pressure29.91 inHg
Wind14.3 mph NW
Humidity27%
Visibility—
Dew point36°
Fri, 2175° / 50°0
75 °
West Branch, Friday, 21 August
Partly cloudy. High 75°, low 50°.
Pressure30.06 inHg
Wind8.6 mph N
Humidity33%
Visibility—
Dew point40°
Sat, 2274° / 52°0.02
74 °
West Branch, Saturday, 22 August
Light rain. High 74°, low 52°.
Pressure29.94 inHg
Wind8.6 mph S
Humidity30%
Visibility—
Dew point38°
Sun, 2381° / 56°0.06
81 °
West Branch, Sunday, 23 August
Light rain. High 81°, low 56°.
Pressure29.71 inHg
Wind17.3 mph W
Humidity33%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2476° / 60°0.08
76 °
West Branch, Monday, 24 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.08 in
Chance of precipitation25%
Record high90° (2021)
Record low47° (1971)
Tue, 2577° / 61°0.09
77 °
West Branch, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation22%
Record high90° (2021)
Record low46° (1977)
Wed, 2677° / 61°0.14
77 °
West Branch, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.14 in
Chance of precipitation35%
Record high91° (2024)
Record low49° (2025)
Thu, 2777° / 61°0.13
77 °
West Branch, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.13 in
Chance of precipitation42%
Record high94° (1973)
Record low48° (2025)
Fri, 2876° / 60°0.09
76 °
West Branch, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation35%
Record high92° (1973)
Record low44° (1986)
Sat, 2976° / 59°0.13
76 °
West Branch, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.13 in
Chance of precipitation45%
Record high91° (1991)
Record low43° (1982)
Sun, 3075° / 59°0.09
75 °
West Branch, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.09 in
Chance of precipitation33%
Record high89° (1973)
Record low44° (1976)
Mon, 3175° / 58°0.04
75 °
West Branch, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low58°
Average precipitation0.04 in
Chance of precipitation20%
Record high88° (2010)
Record low44° (2009)
Tue, 0175° / 58°0.08
75 °
West Branch, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high75°
Average low58°
Average precipitation0.08 in
Chance of precipitation30%
Record high87° (1973)
Record low46° (2009)
Wed, 0274° / 58°0.07
74 °
West Branch, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0.07 in
Chance of precipitation28%
Record high91° (2011)
Record low46° (1976)
Thu, 0375° / 58°0.13
75 °
West Branch, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low58°
Average precipitation0.13 in
Chance of precipitation27%
Record high87° (1973)
Record low46° (1974)
Fri, 0474° / 57°0.08
74 °
West Branch, Friday, 4 September
Climate normal for this date — 60-year average.
Average high74°
Average low57°
Average precipitation0.08 in
Chance of precipitation28%
Record high90° (2023)
Record low44° (1974)
Sat, 0574° / 57°0.09
74 °
West Branch, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low57°
Average precipitation0.09 in
Chance of precipitation25%
Record high89° (2023)
Record low45° (1984)
Sun, 0674° / 58°0.06
74 °
West Branch, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0.06 in
Chance of precipitation32%
Record high86° (1998)
Record low44° (1988)
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 West Branch, 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 West Branch, 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.