Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Rock Springs, Wyoming

High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →

Rock Springs, WY
Sunday, May 17 at 3:46 AM
53
°
Overcast
Feels like
45°
Humidity
27%
Wind
7 mph
Sunrise
5:56 AM
Sunset
8:30 PM
Rock Springs, WY
Hour by hour · 24h
58°
9p
53°
10p
50°
11p
46°
12a
44°
1a
43°
2a
42°
3a
42°
4a
40°
5a
40°
6a
42°
7a
50°
8a
56°
9a
61°
10a
65°
11a
67°
12p
70°
1p
72°
2p
73°
3p
74°
4p
73°
5p
70°
6p
68°
7p
65°
8p
L 40°H 74°
Rock Springs, WY
7-day forecast
  1. Today
    May 16
    Overcast
    68°40°
  2. Sunday
    May 17
    Snow
    42%
    50°36°
  3. Monday
    May 18
    Heavy Snow
    99%
    37°27°
  4. Tuesday
    May 19
    Overcast
    53°29°
  5. Wednesday
    May 20
    Overcast
    60°39°
  6. Thursday
    May 21
    Overcast
    11%
    62°40°
  7. Friday
    May 22
    Overcast
    69°47°
Rock Springs, WY
Anemometer · 24h winds · from true
NESW
From · True
NW
316° · backing 97°
Direction
NW
316°
Sustained
7
mph
Gust
9
mph
Peak 24h
28
avg 9
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
avg 9 · pk 28 @ 11:00p
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Rock Springs, WY
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
801.6
-0.7 mb in 3h · falling · 23.67 inHg
Now
801.6
mb
3h
-0.7
mb
12h
-3.0
mb
24h
-0.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 801806
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Rock Springs, WY
Air quality
72
AQI
Moderate
PM 2.5
4.2 μg/m³
PM 10
9.4 μg/m³
NO₂
1.0 μg/m³
Ozone
114.0 μg/m³
UV Index
0.0 Low
Rock Springs, WY
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:26 AM
Sunrise
5:56 AM
Daylight
14h 34m
Sunset
8:30 PM
Civil dusk
3:03 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Rock Springs, WY
The moon
New Moon
0% illuminated
Moonrise
12:02 PM
Moonset
3:06 AM
In sign
♊︎ Gemini
Rock Springs, WY
Microseason · 28 of 72
May 16–20

High country wildflowers peak

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Rock Springs at a glance

  • Today vs. normal: 17°F below the seasonal normal for this latitude
  • Last frost: April 26 (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.

ZIP codes in Rock Springs

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.