Weather in Simms, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Simms, MT
Sunday, May 17 at 3:40 AM
46
°
Overcast
Feels like
35°
Humidity
34%
Wind
14 mph
Sunrise
5:48 AM
Sunset
8:59 PM
Simms, MT
Hour by hour · 24h
54°
9p
52°
10p
52°
11p
50°
12a
47°
1a
46°
2a
45°
3a
45°
4a
44°
5a
43°
13%
6a
46°
7a
50°
14%
8a
52°
9a
55°
10a
57°
11a
59°
12p
61°
1p
62°
2p
62°
3p
63°
4p
62°
5p
61°
6p
59°
7p
58°
8p
Simms, MT
7-day forecast
- TodayMay 16Overcast15%58°43°
- SundayMay 17Snow38%41°35°
- MondayMay 18Overcast—54°34°
- TuesdayMay 19Overcast19%65°37°
- WednesdayMay 20Light Rain37%54°42°
- ThursdayMay 21Overcast19%65°40°
- FridayMay 22Overcast31%73°48°
Simms, MT
Next 24 hours · Cool now
Simms, MT
Anemometer · 24h winds · from true
From · True
WNW
286° · backing 12°
Direction
WNW
286°
Sustained
14
mph
Gust
23
mph
Peak 24h
26
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
Simms, MT
Air quality
45
AQI
Good
- PM 2.5
- 0.5 μg/m³
- PM 10
- 0.7 μg/m³
- NO₂
- 0.6 μg/m³
- Ozone
- 88.0 μg/m³
- UV Index
- 0.0 Low
Simms, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:14 AM
Sunrise
5:48 AM
Daylight
15h 11m
Sunset
8:59 PM
Civil dusk
3:36 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Simms, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:46 AM
- Moonset
- 3:44 AM
- In sign
- ♊︎ Gemini
Simms, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Simms at a glance
- Today vs. normal: 18°F below the seasonal normal for this latitude
- Last frost: May 31 (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).