Weather in Alta, Wyoming
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Alta, WY
Sunday, May 17 at 3:55 AM
40
°
Clear
Feels like
29°
Humidity
39%
Wind
13 mph
Sunrise
5:57 AM
Sunset
8:43 PM
Alta, WY
Hour by hour · 24h
50°
9p
48°
10p
48°
11p
47°
12a
46°
1a
45°
2a
43°
3a
42°
4a
41°
5a
41°
6a
43°
7a
48°
8a
51°
9a
53°
10a
55°
11a
57°
12p
59°
1p
60°
2p
60°
3p
60°
4p
60°
5p
58°
6p
56°
7p
53°
8p
Alta, WY
7-day forecast
- TodayMay 16Overcast—54°38°
- SundayMay 17Overcast13%48°30°
- MondayMay 18Overcast14%48°28°
- TuesdayMay 19Overcast—54°30°
- WednesdayMay 20Light Snow Shwrs25%54°37°
- ThursdayMay 21Partly Cloudy14%58°33°
- FridayMay 22Overcast25%66°43°
Alta, WY
Next 24 hours · Cold now
Alta, WY
Anemometer · 24h winds · from true
From · True
SSW
193° · veering 35°
Direction
SSW
193°
Sustained
13
mph
Gust
22
mph
Peak 24h
27
avg 11
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
Alta, WY
Air quality
51
AQI
Moderate
- PM 2.5
- 2.3 μg/m³
- PM 10
- 7.1 μg/m³
- NO₂
- 0.7 μg/m³
- Ozone
- 113.0 μg/m³
- UV Index
- 0.0 Low
Alta, WY
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:25 AM
Sunrise
5:57 AM
Daylight
14h 46m
Sunset
8:43 PM
Civil dusk
3:18 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Alta, WY
The moon
New Moon
0% illuminated
- Moonrise
- 12:00 PM
- Moonset
- 3:22 AM
- In sign
- ♊︎ Gemini
Alta, WY
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Alta at a glance
- Today vs. normal: 28°F below the seasonal normal for this latitude
- Last frost: May 9 (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).