Grass Lake Hourly Weather Forecast
Next 48 Hours
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Sunny skies giving way to Clear conditions by evening. Warming trend from 62°F to 77°. Light winds, shifting from E to SE at 5.7 mph, as humidity ranges 37% to 94%, and an avg barometric pressure of 30 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
10 AM
63°F
64°F
86%
4.7 E
30.06
59°F
1.9
13%
11 AM
70°F
70°F
69%
5.1 E
30.06
60°F
3.6
5%
12 PM
74°F
73°F
54%
5.4 ESE
30.05
56°F
5.3
3%
1 PM
73°F
70°F
42%
5.1 ESE
30.03
49°F
6.4
1%
2 PM
75°F
72°F
40%
5.1 SE
30.02
49°F
6.5
1%
3 PM
76°F
73°F
38%
4.7 SSE
30
49°F
5.6
1%
4 PM
76°F
73°F
37%
4.7 SSE
29.98
48°F
4
1%
5 PM
77°F
74°F
37%
4.3 S
29.97
49°F
2.3
1%
6 PM
76°F
73°F
41%
4.7 S
29.96
50°F
0.9
1%
7 PM
74°F
73°F
55%
6 SSE
29.96
57°F
0.2
3%
8 PM
68°F
66°F
68%
7.8 SSE
29.98
57°F
0
5%
9 PM
65°F
63°F
76%
7.2 SE
30
57°F
0
8%
10 PM
63°F
62°F
84%
7.4 SE
30
58°F
0
11%
11 PM
62°F
62°F
94%
7.2 SE
29.99
60°F
0
32%
Sat, Sep 12th 2026
Starting off Overcast conditions, turning Misty conditions later in the day. Warming trend from 62°F to 80°. Breezy wind, shifting from SE to WSW at 7.3 mph, while humidity ranges from 53% to 97%, and an avg barometric pressure of 29.93 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
12 AM
63°F
62°F
95%
6.9 SE
29.98
61°F
0
38%
1 AM
63°F
63°F
96%
6.7 SSE
29.98
62°F
0
39%
2 AM
63°F
64°F
96%
6.3 SSE
29.97
62°F
0
38%
3 AM
63°F
64°F
97%
6.5 SSE
29.96
62°F
0
36%
4 AM
63°F
64°F
96%
5.8 SSE
29.96
62°F
0
24%
5 AM
62°F
64°F
95%
4.5 S
29.96
61°F
0
19%
6 AM
62°F
64°F
95%
4.5 S
29.96
61°F
0
19%
7 AM
62°F
64°F
95%
3.6 S
29.95
61°F
0
19%
8 AM
64°F
66°F
94%
4.7 S
29.95
62°F
0.1
26%
9 AM
64°F
64°F
85%
5.4 S
29.95
59°F
0.3
27%
10 AM
68°F
67°F
76%
6.9 S
29.94
60°F
0.6
21%
11 AM
72°F
71°F
68%
7.8 S
29.93
61°F
1.4
5%
12 PM
76°F
75°F
62%
8.3 SSW
29.92
62°F
2.4
5%
1 PM
78°F
78°F
57%
8.9 SSW
29.91
62°F
4.5
6%
2 PM
80°F
80°F
54%
9.4 SW
29.89
62°F
5.8
13%
3 PM
79°F
79°F
55%
9.4 SW
29.88
61°F
5.6
12%
4 PM
79°F
79°F
53%
9.4 SW
29.87
61°F
4
9%
5 PM
79°F
79°F
55%
9.8 SSW
29.86
62°F
2.2
4%
6 PM
79°F
79°F
56%
10.5 SSW
29.87
62°F
0.9
12%
7 PM
76°F
75°F
67%
9.6 SSW
29.88
64°F
0.2
5%
8 PM
75°F
77°F
80%
8.3 SSW
29.89
68°F
0
9%
9 PM
73°F
75°F
85%
8.1 SW
29.91
68°F
0
11%
10 PM
72°F
74°F
86%
7.4 SW
29.92
68°F
0
12%
11 PM
71°F
73°F
88%
6.7 WSW
29.93
67°F
0
12%
Sun, Sep 13th 2026
Misty conditions early, becoming Clear conditions later. Temps range from 68° to 70°. Light winds, shifting from WSW to WNW at 6.9 mph, with humidity levels between 84% to 96%, and an avg barometric pressure of 29.94 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
12 AM
70°F
73°F
89%
6.7 WSW
29.93
67°F
0
12%
1 AM
70°F
72°F
89%
6.7 WSW
29.92
67°F
0
13%
2 AM
70°F
72°F
91%
7.4 SW
29.93
67°F
0
14%
3 AM
69°F
72°F
94%
7.2 SW
29.93
68°F
0
19%
4 AM
69°F
72°F
96%
6.7 WSW
29.93
68°F
0
38%
5 AM
69°F
72°F
96%
6.5 W
29.94
68°F
0
25%
6 AM
69°F
71°F
96%
6.3 W
29.95
67°F
0
25%
7 AM
68°F
71°F
96%
6.7 WSW
29.95
67°F
0
39%
8 AM
70°F
73°F
92%
6 W
29.97
67°F
0.1
16%
9 AM
69°F
69°F
84%
8.3 WNW
29.98
64°F
0.7
23%
This hour by hour weather report is valid for ZIP code 49240, accurately covering the area of Grass Lake, MI.
Currently
|
53°F |
30.06 inHg.
Barometer 92%
Humidity NE 4.3mph Wind |
| Sunny | ||
National Outlook
Stormy Skies and Sweltering Heat Ahead: Central U.S. to Mississippi Valley, 09-10 to 09-12
Thu Sep 10th 2026, 7:23am PDT
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