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

Helena West Side, Montana Weather

Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →

Helena West Side weather forecast — hour by hour, 7-day outlook, NOAA radar

Helena West Side, MT
Saturday, July 4 at 6:39 PM
85
°
Clear
Feels like
78°
Humidity
24%
Wind
12 mph
Sunrise
11:41 PM
Sunset
3:24 PM
Helena West Side, MT
Hour by hour · 24h
24-Hour ForecastHelena West Side, MT: 24-hour forecast. Temperatures range from 62 to 86 degrees Fahrenheit.
L 62°H 86°
Helena West Side, MT
7-day forecast
  1. Today
    Jul 4
    Overcast
    86°53°
  2. Sunday
    Jul 5
    Overcast
    11%
    86°62°
  3. Monday
    Jul 6
    Light Showers
    60%
    0.06″
    76°53°-10°
  4. Tuesday
    Jul 7
    Overcast
    60%
    86°55°+10°
  5. Wednesday
    Jul 8
    Rain
    32%
    0.22″
    91°60°+5°
  6. Thursday
    Jul 9
    Overcast
    14%
    83°54°-8°
  7. Friday
    Jul 10
    Clear
    91°58°+8°
Helena West Side, MT
Anemometer · 24h winds · from true
NESW
From · True
W
276° · backing 15°
Direction
W
276°
Sustained
12
mph
Gust
23
mph
Peak 24h
23
avg 7
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
avg 7 · pk 23
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2614SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 15° from the w.
Helena West Side, MT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
877.8
-0.7 mb in 3h · falling · 25.92 inHg
Now
877.8
mb
3h
-0.7
mb
12h
+3.9
mb
24h
+0.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 874879
865870875880885-21h-18h-15h-12h-9h-6h-3h-24hNOW879.2873.9878.0
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Helena West Side, MT
Air quality
44
AQI
Good
+15 in 6h

AQI 44 (Good), driven by Ozone. AQI up 15 in the last 6 hours — air quality is degrading. Ozone at AQI 47 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

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

PM 2.5Good
1.2μg/m³
PM 10Good
2μg/m³
NO₂Good
0μg/m³
OzoneDRIVERModerate
99μg/m³
UV IndexLow
2.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 47 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 47
UV peak
1.6 at earlier today
Sky at peak
clear
Projected peak
AQI 47
Helena West Side, MT
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
158.4mi
UNLIMITED
163 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
00:39 UTC · Helena West Side, 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
00:39 UTC · Helena West Side, MT · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Helena West Side, MT
Satellite · infrared · animated
Helena West Side, MT
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Helena West Side, MT
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:03 AM
Sunrise
11:41 PM
Daylight
15h 43m
Sunset
3:24 PM
Civil dusk
10:04 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Helena West Side, MT
The moon
Waning Gibbous
77% illuminated
Moonrise
11:52 PM
Moonset
11:43 AM
In sign
♓︎ Pisces
Helena West Side, MT
Microseason
Jul 1–5

Monsoon storms drench the south

insect
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Helena West Side at a glance

  • Today vs. normal: 20°F above the seasonal normal for this latitude
  • Last frost: May 26 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — Helena West Side

  1. Sat86°53°2%
  2. Sun86°62°11%
  3. Mon76°53°60%
  4. Tue86°55°60%
  5. Wed91°60°32%
  6. Thu83°54°14%
  7. Fri91°58°2%
  8. Sat101°63°3%
  9. Sun99°68°6%
  10. Mon101°69°12%
  11. Tue103°66°19%
  12. Wed101°68°27%
  13. Thu97°64°29%
  14. Fri99°63°16%
  15. Sat94°63°15%
  16. Sun94°64°16%

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

Right now in the garden

Peak growing season

As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Helena West Side

SPC includes Helena West Side in the general thunderstorm area tomorrow — no severe risk, but storms are possible.

  • TODAYNONENo severe risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Helena West Side

  • 59636
  • 59601
  • 59602

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.