Weather in River Sioux, Iowa
Roses Bloom Along the Shelter Rows. Day 58 of spring. Read this microseason across nine climate regions →
River Sioux, IA
Saturday, May 16 at 11:54 PM
81
°
Overcast
Feels like
78°
Humidity
44%
Wind
14 mph
Sunrise
6:02 AM
Sunset
8:38 PM
River Sioux, IA
Hour by hour · 24h
81°
6p
81°
7p
78°
8p
75°
9p
72°
10p
69°
11p
67°
12a
65°
1a
63°
2a
61°
3a
59°
4a
58°
5a
56°
6a
57°
7a
64°
8a
69°
9a
75°
10a
79°
11a
83°
12p
87°
1p
89°
2p
91°
3p
90°
4p
89°
10%
5p
River Sioux, IA
7-day forecast
- TodayMay 16Overcast18%83°55°
- SundayMay 17Thunderstorm71%85°62°
- MondayMay 18Light Showers91%65°55°
- TuesdayMay 19Drizzle91%61°45°
- WednesdayMay 20Overcast—64°42°
- ThursdayMay 21Overcast10%67°48°
- FridayMay 22Heavy Drizzle15%63°56°
River Sioux, IA
Next 24 hours · Warm now
River Sioux, IA
Anemometer · 24h winds · from true
From · True
ENE
058° · veering 55°
Direction
ENE
058°
Sustained
14
mph
Gust
20
mph
Peak 24h
29
avg 12
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
−24h−18h−12h−6hnow
River Sioux, IA
Air quality
49
AQI
Good
- PM 2.5
- 3.3 μg/m³
- PM 10
- 4.4 μg/m³
- NO₂
- 1.1 μg/m³
- Ozone
- 115.0 μg/m³
- UV Index
- 0.8 Low
River Sioux, IA
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
10:32 AM
Sunrise
6:02 AM
Daylight
14h 36m
Sunset
8:38 PM
Civil dusk
2:11 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
River Sioux, IA
The moon
New Moon
0% illuminated
- Moonrise
- 10:25 AM
- Moonset
- 12:53 AM
- In sign
- ♉︎ Taurus
River Sioux, IA
Microseason · 28 of 72
May 16–20
Roses Bloom Along the Shelter Rows
weather
River Sioux at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 27 (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 16, 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.