Weather in Riverton, Wyoming
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Riverton, WY
Sunday, May 17 at 3:59 AM
57
°
Overcast
Feels like
47°
Humidity
25%
Wind
12 mph
Sunrise
5:48 AM
Sunset
8:31 PM
Riverton, WY
Hour by hour · 24h
63°
9p
60°
10p
57°
11p
54°
12a
53°
1a
51°
2a
51°
3a
50°
4a
49°
5a
49°
6a
49°
7a
55°
8a
61°
9a
65°
10a
68°
11a
70°
12p
73°
1p
73°
2p
74°
3p
76°
4p
75°
5p
75°
6p
73°
7p
69°
8p
Riverton, WY
7-day forecast
- TodayMay 16Overcast—72°41°
- SundayMay 17Overcast36%56°39°
- MondayMay 18Snow98%45°31°
- TuesdayMay 19Overcast—56°31°
- WednesdayMay 20Light Drizzle—65°41°
- ThursdayMay 21Overcast17%63°41°
- FridayMay 22Overcast12%72°46°
Riverton, WY
Next 24 hours · Cool now
Riverton, WY
Anemometer · 24h winds · from true
From · True
NNW
330° · veering 65°
Direction
NNW
330°
Sustained
12
mph
Gust
24
mph
Peak 24h
32
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
−24h−18h−12h−6hnow
Riverton, WY
Air quality
65
AQI
Moderate
- PM 2.5
- 6.4 μg/m³
- PM 10
- 30.6 μg/m³
- NO₂
- 0.8 μg/m³
- Ozone
- 105.0 μg/m³
- UV Index
- 0.0 Low
Riverton, WY
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:17 AM
Sunrise
5:48 AM
Daylight
14h 43m
Sunset
8:31 PM
Civil dusk
3:04 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Riverton, WY
The moon
New Moon
0% illuminated
- Moonrise
- 11:53 AM
- Moonset
- 3:09 AM
- In sign
- ♊︎ Gemini
Riverton, WY
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Riverton at a glance
- Today vs. normal: 12°F below the seasonal normal for this latitude
- Last frost: May 4 (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 17, 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).