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

Weather in Williamstown, Missouri

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

Williamstown, MO
Sunday, May 17 at 3:45 AM
68
°
Overcast
Feels like
69°
Humidity
89%
Wind
9 mph
Sunrise
5:49 AM
Sunset
8:17 PM
Williamstown, MO
Hour by hour · 24h
67°
10p
66°
11p
65°
12a
65°
1a
63°
27%
2a
61°
32%
3a
59°
32%
4a
58°
10%
5a
56°
6a
56°
7a
60°
8a
62°
9a
66°
10a
70°
11a
74°
12p
77°
1p
81°
2p
83°
3p
85°
4p
85°
5p
85°
6p
84°
7p
81°
8p
77°
9p
L 56°H 85°
Williamstown, MO
7-day forecast
  1. Today
    May 16
    Drizzle
    60%
    81°65°
  2. Sunday
    May 17
    Drizzle
    77%
    89°64°
  3. Monday
    May 18
    Rain
    81%
    80°67°
  4. Tuesday
    May 19
    Showers
    72%
    72°52°
  5. Wednesday
    May 20
    Overcast
    62°43°
  6. Thursday
    May 21
    Overcast
    10%
    62°47°
  7. Friday
    May 22
    Overcast
    18%
    67°54°
Williamstown, MO
Anemometer · 24h winds · from true
NESW
From · True
ENE
062° · veering 86°
Direction
ENE
062°
Sustained
9
mph
Gust
17
mph
Peak 24h
31
avg 10
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 10 · pk 31 @ 4:00a
−24h−18h−12h−6hnow
Light breeze veering 86° from the ene.
Williamstown, MO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
983.6
-1.0 mb in 3h · falling · 29.05 inHg
Now
983.6
mb
3h
-1.0
mb
12h
-1.2
mb
24h
-0.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 982986
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Williamstown, MO
Air quality
39
AQI
Good
PM 2.5
4.7 μg/m³
PM 10
5.4 μg/m³
NO₂
6.7 μg/m³
Ozone
60.0 μg/m³
UV Index
0.0 Low
Williamstown, MO
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:20 AM
Sunrise
5:49 AM
Daylight
14h 28m
Sunset
8:17 PM
Civil dusk
1:48 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Williamstown, MO
The moon
New Moon
0% illuminated
Moonrise
10:55 AM
Moonset
1:48 AM
In sign
♊︎ Gemini
Williamstown, 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 →

Williamstown at a glance

  • Today vs. normal: 3°F below the seasonal normal for this latitude
  • Last frost: April 17 (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 Williamstown

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.