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

Weather in Napoleon, Missouri

Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →

Napoleon, MO
Sunday, May 17 at 2:37 AM
79
°
Clear
Feels like
77°
Humidity
57%
Wind
15 mph
Sunrise
6:02 AM
Sunset
8:23 PM
Napoleon, MO
Hour by hour · 24h
68°
9p
67°
10p
68°
11p
70°
12a
68°
13%
1a
68°
2a
67°
3a
66°
4a
63°
5a
63°
6a
64°
7a
68°
8a
73°
9a
73°
10a
76°
11a
80°
12p
83°
1p
84°
2p
85°
3p
85°
4p
84°
5p
81°
6p
80°
7p
78°
8p
L 63°H 85°
Napoleon, MO
7-day forecast
  1. Today
    May 16
    Thunderstorm
    11%
    87°64°
  2. Sunday
    May 17
    Overcast
    12%
    88°69°
  3. Monday
    May 18
    Thunderstorm
    48%
    81°64°
  4. Tuesday
    May 19
    Light Showers
    69%
    77°51°
  5. Wednesday
    May 20
    Overcast
    10%
    64°46°
  6. Thursday
    May 21
    Overcast
    14%
    65°49°
  7. Friday
    May 22
    Overcast
    19%
    66°57°
Napoleon, MO
Anemometer · 24h winds · from true
NESW
From · True
S
172° · backing 6°
Direction
S
172°
Sustained
15
mph
Gust
22
mph
Peak 24h
27
avg 10
Beaufort · 4 · MOD 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 10 · pk 27 @ 6:00p
−24h−18h−12h−6hnow
A fresh breeze drives the s-bound air across the harbor.
Napoleon, MO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
973.9
-1.7 mb in 3h · steady · 28.76 inHg
Now
973.9
mb
3h
-1.7
mb
12h
-3.4
mb
24h
-1.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 973979
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Napoleon, MO
Air quality
43
AQI
Good
PM 2.5
5.6 μg/m³
PM 10
6.6 μg/m³
NO₂
5.3 μg/m³
Ozone
65.0 μg/m³
UV Index
0.0 Low
Napoleon, MO
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:33 AM
Sunrise
6:02 AM
Daylight
14h 21m
Sunset
8:23 PM
Civil dusk
1:54 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Napoleon, MO
The moon
New Moon
0% illuminated
Moonrise
11:09 AM
Moonset
1:53 AM
In sign
♊︎ Gemini
Napoleon, MO
Microseason · 28 of 72
May 16–20

Roses open on the Piedmont edge

insect
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Napoleon at a glance

  • Today vs. normal: 6°F above the seasonal normal for this latitude
  • Last frost: April 11 (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

Warm-season window is open

As of May 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.

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.