10-day forecast for Grattan, MI: 51° to 88°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
83°
Best day: Wednesday, August 12
74° · 0.77 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0981° / 65°0.09
Morning66°feels 66°
Afternoon76°feels 75°
Evening73°feels 73°
Overnight67°feels 67°
81 °
Grattan, Sunday, 9 August
Rain. High 81°, low 65°.
Pressure29.97 inHg
Wind11.9 mph SW
Humidity40%
Visibility6.2 mi
Dew point55°
Mon, 1088° / 68°0.48
Morning73°feels 74°
Afternoon87°feels 90°
Evening73°feels 74°
Overnight72°feels 74°
88 °
Grattan, Monday, 10 August
Rain. High 88°, low 68°.
Pressure29.88 inHg
Wind3.1 mph W
Humidity88%
Visibility6.2 mi
Dew point71°
Tue, 1174° / 64°0.77
Morning67°feels 68°
Afternoon68°feels 70°
Evening70°feels 71°
Overnight67°feels 68°
74 °
Grattan, Tuesday, 11 August
Heavy rain. High 74°, low 64°.
Pressure29.85 inHg
Wind11.3 mph NE
Humidity98%
Visibility3.2 mi
Dew point68°
Wed, 1283° / 61°0
Morning65°feels 65°
Afternoon83°feels 84°
Evening72°feels 72°
Overnight62°feels 62°
83 °
Grattan, Wednesday, 12 August
Clear. High 83°, low 61°.
Pressure29.83 inHg
Wind5.7 mph NW
Humidity60%
Visibility6.2 mi
Dew point64°
Thu, 1375° / 57°0.14
Morning61°feels 61°
Afternoon73°feels 71°
Evening66°feels 65°
Overnight57°feels 56°
75 °
Grattan, Thursday, 13 August
Light rain. High 75°, low 57°.
Pressure29.94 inHg
Wind11.1 mph NE
Humidity42%
Visibility—
Dew point47°
Fri, 1475° / 51°0
Morning58°feels 57°
Afternoon71°feels 70°
Evening65°feels 64°
Overnight57°feels 56°
75 °
Grattan, Friday, 14 August
Clear. High 75°, low 51°.
Pressure30.15 inHg
Wind10.8 mph N
Humidity39%
Visibility—
Dew point43°
Sat, 1575° / 53°0
Morning60°feels 59°
Afternoon69°feels 69°
Evening65°feels 65°
Overnight58°feels 58°
75 °
Grattan, Saturday, 15 August
Overcast. High 75°, low 53°.
Pressure30.30 inHg
Wind9.3 mph W
Humidity50%
Visibility—
Dew point49°
Sun, 1680° / 55°0
Morning64°feels 63°
Afternoon77°feels 76°
Evening69°feels 69°
Overnight61°feels 61°
80 °
Grattan, Sunday, 16 August
Overcast. High 80°, low 55°.
Pressure30.21 inHg
Wind10.9 mph SW
Humidity42%
Visibility—
Dew point50°
Mon, 1774° / 60°0.02
Morning64°feels 64°
Afternoon67°feels 67°
Evening72°feels 73°
Overnight67°feels 68°
74 °
Grattan, Monday, 17 August
Light rain. High 74°, low 60°.
Pressure30.03 inHg
Wind8.7 mph SW
Humidity90%
Visibility—
Dew point62°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Grattan, MI around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.