Weather in Casper Mountain, Wyoming
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Casper Mountain, WY
Sunday, May 17 at 5:03 AM
44
°
Overcast
Feels like
34°
Humidity
62%
Wind
13 mph
Sunrise
5:41 AM
Sunset
8:22 PM
Casper Mountain, WY
Hour by hour · 24h
47°
11p
45°
12a
45°
1a
44°
2a
43°
3a
42°
4a
41°
5a
41°
6a
45°
7a
48°
8a
50°
9a
53°
10a
56°
11a
58°
12p
59°
1p
61°
2p
61°
3p
63°
4p
63°
5p
61°
6p
60°
7p
56°
8p
50°
9p
47°
10p
Casper Mountain, WY
7-day forecast
- TodayMay 16Overcast14%62°33°
- SundayMay 17Heavy Snow58%46°27°
- MondayMay 18Heavy Snow100%27°15°
- TuesdayMay 19Foggy54%33°12°
- WednesdayMay 20Overcast—50°23°
- ThursdayMay 21Drizzle24%48°32°
- FridayMay 22Overcast19%58°34°
Casper Mountain, WY
Next 24 hours · Cold now
Casper Mountain, WY
Anemometer · 24h winds · from true
From · True
SW
217° · veering 20°
Direction
SW
217°
Sustained
13
mph
Gust
24
mph
Peak 24h
30
avg 10
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
Casper Mountain, WY
Air quality
66
AQI
Moderate
- PM 2.5
- 4.1 μg/m³
- PM 10
- 6.2 μg/m³
- NO₂
- 1.6 μg/m³
- Ozone
- 102.0 μg/m³
- UV Index
- 0.0 Low
Casper Mountain, WY
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:10 AM
Sunrise
5:41 AM
Daylight
14h 41m
Sunset
8:22 PM
Civil dusk
2:55 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Casper Mountain, WY
The moon
New Moon
0% illuminated
- Moonrise
- 11:46 AM
- Moonset
- 2:59 AM
- In sign
- ♊︎ Gemini
Casper Mountain, WY
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Casper Mountain at a glance
- Today vs. normal: 25°F below the seasonal normal for this latitude
- Last frost: May 2 (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).