Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Napoleon, Michigan

Roses open along the stoops. Day 58 of spring. Read this microseason across nine climate regions →

Napoleon, MI
Saturday, May 16 at 11:41 PM
77
°
Overcast
Feels like
75°
Humidity
47%
Wind
10 mph
Sunrise
6:14 AM
Sunset
8:52 PM
Napoleon, MI
Hour by hour · 24h
64°
7p
63°
8p
57°
9p
52°
10p
49°
11p
47°
12a
46°
1a
43°
2a
42°
3a
40°
4a
39°
5a
37°
6a
40°
7a
46°
8a
55°
9a
58°
10a
60°
11a
63°
12p
64°
1p
65°
2p
68°
3p
69°
4p
69°
5p
69°
6p
L 37°H 69°
Napoleon, MI
7-day forecast
  1. Today
    May 16
    Light Drizzle
    33%
    81°53°
  2. Sunday
    May 17
    Overcast
    16%
    85°60°
  3. Monday
    May 18
    Overcast
    37%
    83°62°
  4. Tuesday
    May 19
    Showers
    76%
    82°67°
  5. Wednesday
    May 20
    Overcast
    68%
    65°48°
  6. Thursday
    May 21
    Overcast
    58°43°
  7. Friday
    May 22
    Light Drizzle
    14%
    64°44°
Napoleon, MI
Anemometer · 24h winds · from true
NESW
From · True
WSW
255° · veering 78°
Direction
WSW
255°
Sustained
10
mph
Gust
20
mph
Peak 24h
28
avg 8
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 8 · pk 28 @ 9:00a
−24h−18h−12h−6hnow
Light breeze veering 78° from the wsw.
Napoleon, MI
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
977.2
-0.6 mb in 3h · steady · 28.86 inHg
Now
977.2
mb
3h
-0.6
mb
12h
+2.2
mb
24h
-0.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 975978
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Napoleon, MI
Air quality
49
AQI
Good
PM 2.5
4.6 μg/m³
PM 10
5.3 μg/m³
NO₂
1.7 μg/m³
Ozone
112.0 μg/m³
UV Index
0.5 Low
Napoleon, MI
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
9:44 AM
Sunrise
6:14 AM
Daylight
14h 38m
Sunset
8:52 PM
Civil dusk
1:25 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Napoleon, MI
The moon
New Moon
0% illuminated
Moonrise
9:35 AM
Moonset
12:04 AM
In sign
♉︎ Taurus
Napoleon, MI
Microseason · 28 of 72
May 16–20

Roses open along the stoops

weather
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Napoleon at a glance

  • Today vs. normal: 8°F above the seasonal normal for this latitude
  • Last frost: April 29 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Cool-season window is open

As of May 16, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).

ZIP codes in Napoleon

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.