Weather in Ballwin, Missouri
Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →
Ballwin, MO
Sunday, May 17 at 3:55 AM
72
°
Mostly Clear
Feels like
74°
Humidity
71%
Wind
6 mph
Sunrise
5:49 AM
Sunset
8:08 PM
Ballwin, MO
Hour by hour · 24h
66°
10p
65°
11p
65°
12a
63°
1a
62°
2a
62°
3a
61°
4a
61°
5a
63°
13%
6a
63°
15%
7a
64°
15%
8a
67°
15%
9a
69°
10a
73°
11a
77°
12p
80°
1p
82°
2p
82°
3p
81°
4p
81°
5p
80°
6p
79°
7p
77°
8p
76°
9p
Ballwin, MO
7-day forecast
- TodayMay 16Light Showers62%77°71°
- SundayMay 17Overcast—87°67°
- MondayMay 18Light Showers47%79°66°
- TuesdayMay 19Light Showers85%81°59°
- WednesdayMay 20Overcast62%69°52°
- ThursdayMay 21Drizzle13%63°55°
- FridayMay 22Foggy21%64°55°
Ballwin, MO
Next 24 hours · Mild now
Ballwin, MO
Anemometer · 24h winds · from true
From · True
SSE
153° · backing 62°
Direction
SSE
153°
Sustained
6
mph
Gust
13
mph
Peak 24h
20
avg 6
Beaufort · 2 · LIGHT 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
−24h−18h−12h−6hnow
Ballwin, MO
Air quality
32
AQI
Good
- PM 2.5
- 6.7 μg/m³
- PM 10
- 7.2 μg/m³
- NO₂
- 8.6 μg/m³
- Ozone
- 65.0 μg/m³
- UV Index
- 0.0 Low
Ballwin, MO
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:21 AM
Sunrise
5:49 AM
Daylight
14h 19m
Sunset
8:08 PM
Civil dusk
1:38 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Ballwin, MO
The moon
New Moon
0% illuminated
- Moonrise
- 10:56 AM
- Moonset
- 1:36 AM
- In sign
- ♊︎ Gemini
Ballwin, MO
Microseason · 28 of 72
May 16–20
Roses open on the Piedmont edge
insect
Ballwin at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 8 (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.