Weather in Hays, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Hays, MT
Sunday, May 17 at 2:43 AM
41
°
Overcast
Feels like
33°
Humidity
75%
Wind
10 mph
Sunrise
5:34 AM
Sunset
8:48 PM
Hays, MT
Hour by hour · 24h
54°
8p
51°
9p
50°
10p
48°
11p
47°
12a
47°
1a
45°
2a
45°
3a
44°
4a
44°
5a
45°
6a
45°
7a
45°
11%
8a
48°
9a
51°
10a
53°
11a
54°
12p
55°
1p
57°
2p
58°
3p
59°
4p
59°
5p
58°
6p
56°
7p
Hays, MT
7-day forecast
- TodayMay 16Drizzle64%50°38°
- SundayMay 17Snow45%39°30°
- MondayMay 18Snow37%46°29°
- TuesdayMay 19Light Drizzle—60°33°
- WednesdayMay 20Drizzle45%57°46°
- ThursdayMay 21Overcast17%61°41°
- FridayMay 22Overcast28%66°46°
Hays, MT
Next 24 hours · Cool now
Hays, MT
Anemometer · 24h winds · from true
From · True
ESE
123° · backing 110°
Direction
ESE
123°
Sustained
10
mph
Gust
10
mph
Peak 24h
16
avg 6
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
Hays, MT
Air quality
41
AQI
Good
- PM 2.5
- 3.8 μg/m³
- PM 10
- 4.8 μg/m³
- NO₂
- 0.8 μg/m³
- Ozone
- 79.0 μg/m³
- UV Index
- 0.0 Low
Hays, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:58 AM
Sunrise
5:34 AM
Daylight
15h 14m
Sunset
8:48 PM
Civil dusk
3:26 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Hays, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:30 AM
- Moonset
- 3:33 AM
- In sign
- ♊︎ Gemini
Hays, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Hays at a glance
- Today vs. normal: 23°F below the seasonal normal for this latitude
- Last frost: June 3 (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).