Monthly outlook for Devereaux, MI: average high 83.7°, average low 61.8°. That is 3° above the climate normal for August. Precipitation is expected on 3 days (about 2.1 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 23 August (101.1°), the coolest 15 August (52.6°).
83.7°/61.8°
Average high / low
+3°
Above normal
3 / 5
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
80.4°
78.6°
+1°
19 August – 28 August
89.3°
78.2°
+6.2°
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 (13 mi).
Mon, 1087° / 69°0.37
87 °
Devereaux, Monday, 10 August
Rain. High 87°, low 69°.
Pressure29.88 inHg
Wind10.2 mph W
Humidity74%
Visibility6.2 mi
Dew point71°
Tue, 1185° / 62°1.6
85 °
Devereaux, Tuesday, 11 August
Heavy rain. High 85°, low 62°.
Pressure29.85 inHg
Wind13.5 mph SE
Humidity42%
Visibility6.2 mi
Dew point60°
Wed, 1284° / 64°0
84 °
Devereaux, Wednesday, 12 August
Partly cloudy. High 84°, low 64°.
Pressure29.77 inHg
Wind6.5 mph NW
Humidity62%
Visibility6.2 mi
Dew point65°
Thu, 1374° / 57°0
74 °
Devereaux, Thursday, 13 August
Overcast. High 74°, low 57°.
Pressure30.00 inHg
Wind10.4 mph NW
Humidity40%
Visibility—
Dew point45°
Fri, 1475° / 53°0
75 °
Devereaux, Friday, 14 August
Mostly clear. High 75°, low 53°.
Pressure30.15 inHg
Wind8.3 mph NW
Humidity44%
Visibility—
Dew point47°
Sat, 1576° / 53°0
76 °
Devereaux, Saturday, 15 August
Overcast. High 76°, low 53°.
Pressure30.27 inHg
Wind8.8 mph E
Humidity41%
Visibility—
Dew point47°
Sun, 1673° / 58°0.01
73 °
Devereaux, Sunday, 16 August
Light rain. High 73°, low 58°.
Pressure30.12 inHg
Wind7.4 mph SW
Humidity51%
Visibility—
Dew point52°
Mon, 1782° / 62°0
82 °
Devereaux, Monday, 17 August
Partly cloudy. High 82°, low 62°.
Pressure30.03 inHg
Wind9.9 mph NW
Humidity41%
Visibility—
Dew point52°
Tue, 1882° / 59°0
82 °
Devereaux, Tuesday, 18 August
Partly cloudy. High 82°, low 59°.
Pressure30.03 inHg
Wind8.9 mph SW
Humidity45%
Visibility—
Dew point56°
Wed, 1981° / 62°0.02
81 °
Devereaux, Wednesday, 19 August
Light rain. High 81°, low 62°.
Pressure30.00 inHg
Wind11.3 mph SW
Humidity56%
Visibility—
Dew point60°
Thu, 2092° / 68°0
92 °
Devereaux, Thursday, 20 August
Partly cloudy. High 92°, low 68°.
Pressure29.80 inHg
Wind11.5 mph S
Humidity46%
Visibility—
Dew point65°
Fri, 2195° / 72°0
95 °
Devereaux, Friday, 21 August
Clear. High 95°, low 72°.
Pressure29.88 inHg
Wind9.8 mph NE
Humidity33%
Visibility—
Dew point57°
Sat, 2291° / 64°0
91 °
Devereaux, Saturday, 22 August
Mostly clear. High 91°, low 64°.
Pressure29.94 inHg
Wind12.5 mph S
Humidity41%
Visibility—
Dew point60°
Sun, 23101° / 67°0
101 °
Devereaux, Sunday, 23 August
Light rain. High 101°, low 67°.
Pressure29.80 inHg
Wind14.9 mph W
Humidity33%
Visibility—
Dew point63°
Mon, 2476° / 63°0.09
76 °
Devereaux, Monday, 24 August
Light rain. High 76°, low 63°.
Pressure30.06 inHg
Wind8.4 mph NE
Humidity87%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2579° / 62°0.04
79 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 °
Devereaux, 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 Devereaux, 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 Devereaux, 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.