Weather in Jefferson City, Montana
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
Jefferson City, MT
Sunday, May 17 at 4:10 AM
37
°
Overcast
Feels like
29°
Humidity
55%
Wind
6 mph
Sunrise
5:53 AM
Sunset
8:56 PM
Jefferson City, MT
Hour by hour · 24h
51°
10p
49°
11p
47°
12a
46°
1a
45°
2a
44°
3a
42°
4a
41°
5a
40°
6a
43°
7a
47°
8a
49°
9a
51°
10a
53°
11a
56°
12p
58°
1p
60°
2p
60°
3p
60°
4p
60°
5p
59°
6p
57°
7p
55°
8p
51°
9p
Jefferson City, MT
7-day forecast
- TodayMay 16Light Drizzle47%47°34°
- SundayMay 17Heavy Snow33%41°29°
- MondayMay 18Light Drizzle11%51°33°
- TuesdayMay 19Overcast—61°35°
- WednesdayMay 20Light Snow Shwrs47%50°38°
- ThursdayMay 21Light Drizzle22%64°36°
- FridayMay 22Overcast35%71°46°
Jefferson City, MT
Next 24 hours · Cool now
Jefferson City, MT
Anemometer · 24h winds · from true
From · True
SSE
148° · veering 81°
Direction
SSE
148°
Sustained
6
mph
Gust
18
mph
Peak 24h
23
avg 6
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
−24h−18h−12h−6hnow
Jefferson City, MT
Air quality
41
AQI
Good
- PM 2.5
- 1.4 μg/m³
- PM 10
- 1.7 μg/m³
- NO₂
- 1.4 μg/m³
- Ozone
- 80.0 μg/m³
- UV Index
- 0.0 Low
Jefferson City, MT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:19 AM
Sunrise
5:53 AM
Daylight
15h 03m
Sunset
8:56 PM
Civil dusk
3:32 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Jefferson City, MT
The moon
New Moon
0% illuminated
- Moonrise
- 11:52 AM
- Moonset
- 3:39 AM
- In sign
- ♊︎ Gemini
Jefferson City, MT
Microseason · 28 of 72
May 16–20
High country wildflowers peak
bird
Jefferson City at a glance
- Today vs. normal: 28°F below the seasonal normal for this latitude
- Last frost: May 24 (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).