10-day forecast for Grattan, MI: 37° to 76°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
67°
Best day: Wednesday, October 21
57° · 0.91 in
Worst day: Thursday, October 15
Tap any day below to see morning, afternoon, evening and overnight.
Wed, 1468° / 54°0.02
Morning57°feels 57°
Afternoon68°feels 67°
Evening57°feels 56°
Overnight56°feels 56°
68 °
Grattan, Wednesday, 14 October
Light rain. High 68°, low 54°.
Pressure30.09 inHg
Wind8.2 mph N
Humidity64%
Visibility6.2 mi
Dew point50°
Thu, 1557° / 49°0.91
Morning49°feels 45°
Afternoon55°feels 55°
Evening54°feels 54°
Overnight51°feels 50°
57 °
Grattan, Thursday, 15 October
Heavy rain. High 57°, low 49°.
Pressure30.15 inHg
Wind9.6 mph E
Humidity71%
Visibility6.2 mi
Dew point48°
Fri, 1656° / 44°0.31
Morning50°feels 46°
Afternoon53°feels 52°
Evening48°feels 41°
Overnight55°feels 55°
56 °
Grattan, Friday, 16 October
Rain. High 56°, low 44°.
Pressure29.85 inHg
Wind14.1 mph NW
Humidity96%
Visibility4.2 mi
Dew point48°
Sat, 1754° / 37°0
Morning37°feels 34°
Afternoon53°feels 50°
Evening45°feels 40°
Overnight41°feels 35°
54 °
Grattan, Saturday, 17 October
Clear. High 54°, low 37°.
Pressure30.45 inHg
Wind7.7 mph W
Humidity56%
Visibility6.2 mi
Dew point35°
Sun, 1858° / 45°0
Morning50°feels 45°
Afternoon58°feels 56°
Evening53°feels 51°
Overnight51°feels 48°
58 °
Grattan, Sunday, 18 October
Mostly clear. High 58°, low 45°.
Pressure30.27 inHg
Wind16.5 mph SW
Humidity56%
Visibility—
Dew point41°
Mon, 1957° / 47°0.03
Morning54°feels 53°
Afternoon54°feels 53°
Evening50°feels 49°
Overnight49°feels 48°
57 °
Grattan, Monday, 19 October
Light rain. High 57°, low 47°.
Pressure30.15 inHg
Wind12.5 mph SW
Humidity86%
Visibility—
Dew point50°
Tue, 2062° / 43°0
Morning48°feels 45°
Afternoon60°feels 59°
Evening54°feels 53°
Overnight51°feels 50°
62 °
Grattan, Tuesday, 20 October
Overcast. High 62°, low 43°.
Pressure30.33 inHg
Wind8.5 mph E
Humidity60%
Visibility—
Dew point45°
Wed, 2167° / 50°0
Morning57°feels 56°
Afternoon66°feels 66°
Evening60°feels 60°
Overnight60°feels 60°
67 °
Grattan, Wednesday, 21 October
Overcast. High 67°, low 50°.
Pressure30.27 inHg
Wind8.5 mph S
Humidity64%
Visibility—
Dew point53°
Thu, 2265° / 60°0.52
Morning61°feels 61°
Afternoon62°feels 62°
Evening63°feels 64°
Overnight65°feels 65°
65 °
Grattan, Thursday, 22 October
Rain. High 65°, low 60°.
Pressure30.09 inHg
Wind14.7 mph S
Humidity91%
Visibility—
Dew point59°
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.