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

Little Bitterroot Lake, Montana Weather

Thunderheads build by noon. Day 90 of spring. Read this microseason across nine climate regions →

Little Bitterroot Lake weather forecast — hour by hour, 7-day outlook, NOAA radar

Little Bitterroot Lake, MT
Wednesday, June 17 at 12:24 AM
61
°
Clear
Feels like
56°
Humidity
37%
Wind
5 mph
Sunrise
11:38 PM
Sunset
3:41 PM
Little Bitterroot Lake, MT
Hour by hour · 24h
24-Hour ForecastLittle Bitterroot Lake, MT: 24-hour forecast. Temperatures range from 50 to 70 degrees Fahrenheit.
L 50°H 70°
Little Bitterroot Lake, MT
7-day forecast
  1. Today
    Jun 17
    Overcast
    70°50°
  2. Thursday
    Jun 18
    Overcast
    74°49°+4°
  3. Friday
    Jun 19
    Overcast
    77°45°+3°
  4. Saturday
    Jun 20
    Overcast
    82°50°+5°
  5. Sunday
    Jun 21
    Overcast
    14%
    80°49°-2°
  6. Monday
    Jun 22
    Partly Cloudy
    14%
    86°51°+6°
  7. Tuesday
    Jun 23
    Partly Cloudy
    85°55°-1°
Little Bitterroot Lake, MT
Anemometer · 24h winds · from true
NESW
From · True
NNW
327° · backing 153°
Direction
NNW
327°
Sustained
5
mph
Gust
23
mph
Peak 24h
38
avg 12
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 12 · pk 38 @ 7:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 245SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 153° from the nnw.
Little Bitterroot Lake, MT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
877.6
+2.3 mb in 3h · rising rapidly · 25.92 inHg
Now
877.6
mb
3h
+2.3
mb
12h
+0.3
mb
24h
-2.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 875880
870875880885-21h-18h-15h-12h-9h-6h-3h-24hNOW880.0875.3877.7
−24h−18h−12h−6hnow
The low is filling — pressure climbing out of storm territory.
Little Bitterroot Lake, MT
Air quality
48
AQI
Good
+2 in 6h

AQI 48 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 39 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12 around 1 PM.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5Good
2.1μg/m³
PM 10Good
2μg/m³
NO₂Good
2μg/m³
OzoneDRIVERModerate
83μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 39 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12 around 1 PM.

Present
AQI 39
UV peak
3.3 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 12
Little Bitterroot Lake, MT
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
107.8mi
UNLIMITED
161 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
06:24 UTC · Little Bitterroot Lake, MT · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
06:24 UTC · Little Bitterroot Lake, MT · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Little Bitterroot Lake, MT
Satellite · infrared · animated
Little Bitterroot Lake, MT
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Little Bitterroot Lake, MT
Almanac · Wednesday, June 17
A summer fog for fair, a winter fog for rain.
Civil dawn
4:58 AM
Sunrise
11:38 PM
Daylight
16h 03m
Sunset
3:41 PM
Civil dusk
10:23 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Little Bitterroot Lake, MT
The moon
Waxing Crescent
7% illuminated
Moonrise
8:12 AM
Moonset
11:53 PM
In sign
♋︎ Cancer
Little Bitterroot Lake, MT
Microseason
Jun 16–20

Thunderheads build by noon

plant
Jan 146% of the yearDec 31

Read this microseason across nine climate regions →

Little Bitterroot Lake at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: June 4 (climatological average for this latitude)
  • Microseason: Jun 16–20
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

15-Day Forecast — Little Bitterroot Lake

  1. Wed70°50°3%
  2. Thu74°49°2%
  3. Fri77°45°0%
  4. Sat82°50°2%
  5. Sun80°49°14%
  6. Mon86°51°14%
  7. Tue85°55°3%
  8. Wed67°51°10%
  9. Thu68°47°8%
  10. Fri77°48°8%
  11. Sat86°51°12%
  12. Sun90°57°19%
  13. Mon87°60°18%
  14. Tue82°49°23%
  15. Wed86°50°16%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Warm-season window is open

As of June 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 Little Bitterroot Lake

  • 59925

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.