Helena Valley, Montana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for 2 Miles N East Helena MT
National Weather Service Forecast for:
2 Miles N East Helena MT
Issued by: National Weather Service Great Falls, MT |
Updated: 2:11 pm MDT Jul 26, 2025 |
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This Afternoon
 Showers Likely
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Tonight
 Chance T-storms
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Sunday
 Sunny then Chance T-storms
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Sunday Night
 Chance T-storms then Mostly Cloudy
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Monday
 Sunny then Chance T-storms
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Monday Night
 Slight Chance T-storms then Partly Cloudy
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Tuesday
 Sunny then Chance T-storms
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Tuesday Night
 Chance T-storms then Mostly Cloudy
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Wednesday
 Mostly Sunny then Chance T-storms
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Hi 88 °F |
Lo 53 °F |
Hi 86 °F |
Lo 54 °F |
Hi 85 °F |
Lo 54 °F |
Hi 84 °F |
Lo 55 °F |
Hi 83 °F |
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This Afternoon
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A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Widespread haze before 4pm. Partly sunny, with a high near 88. Southeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. |
Tonight
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A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after midnight. Cloudy, then gradually becoming partly cloudy, with a low around 53. South wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 40%. |
Sunday
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A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 86. Calm wind becoming west southwest 5 to 7 mph in the afternoon. |
Sunday Night
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A 30 percent chance of showers and thunderstorms before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 54. North northeast wind 5 to 7 mph becoming calm after midnight. |
Monday
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A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. Calm wind becoming north 5 to 7 mph in the afternoon. |
Monday Night
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A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. North wind 5 to 8 mph becoming calm after midnight. |
Tuesday
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A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Calm wind becoming north northeast 5 to 8 mph in the afternoon. |
Tuesday Night
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A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. North wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 18 mph. |
Wednesday
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A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. |
Wednesday Night
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A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 57. |
Thursday
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A chance of showers and thunderstorms. Partly sunny, with a high near 86. |
Thursday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. |
Friday
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A chance of showers and thunderstorms. Mostly sunny, with a high near 85. |
Friday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. |
Saturday
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A chance of showers and thunderstorms. Mostly sunny, with a high near 84. |
Forecast from NOAA-NWS
for 2 Miles N East Helena MT.
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Weather Forecast Discussion
057
FXUS65 KTFX 261927
AFDTFX
Area Forecast Discussion
National Weather Service Great Falls MT
127 PM MDT Sat Jul 26 2025
.KEY MESSAGES...
- Daily rounds of showers and thunderstorms through the upcoming
week, most focused on the afternoon and early evening.
- The risk for stronger thunderstorms will be around most days, with
gusty winds being the greatest threat most days.
- As better moisture works in toward the middle of the week,
concerns for localized heavy rain from thunderstorms will
increase.
&&
.DISCUSSION...
- Meteorological Overview:
Southwesterly flow aloft will persist across the Northern Rockies
over the upcoming week, which will promote daily afternoon and
evening showers and thunderstorms. Convective initiation most days
looks to be over terrain in Central and Southwest Montana, with
resulting showers and thunderstorms moving northeastward with time.
Looking toward the work week, better precipitable water eventually
works in, which will help the more robust thunderstorms produce
higher rainfall rates/amounts, though storm motion does not appear
to be overly slow any specific day.
The main threat with thunderstorms that form appears to be gusty
winds most days, with a lesser concern for hail. Today is no
exception - as thunderstorms develop across portions of Southwest
Montana and shift northeastward, the risk for strong to severe wind
gusts will increase. This risk continues onto the plains this
evening, eventually waning after sunset. -AM
- Forecast Confidence & Scenarios:
Confidence in the areas with the best chance for stronger
thunderstorm decreases step by step Sunday onward. These details
will become more clear once convective details from the prior day
play out.
EFI suggests as we get deeper into the work week, convective energy
increases in magnitude, becoming unusually high by Wednesday (EFI
pushing above 0.9 with a SoT between 1 and 2). While a much lesser
signal, QPF SoT over a similar timeframe does show pockets of 0,
indicating a low end chance for anomalously high precipitation
associated with the thunderstorms that are forecast to develop. -AM
&&
.AVIATION...
26/18Z TAF Period
VFR conditions will prevail throughout much of the 2618/2718 TAF
period, but periods of MVFR conditions due to reduced VIS from
precipitation and/or low CIGS beneath thunderstorms will be
possible. Shower and thunderstorms are expected to develop along
the Continental Divide between 19-20z, with this activity then
spreading east to northeast over the surrounding mountains,
valleys, and plains. Main window for any thunderstorm to impact a
given terminal exists between 26/20z and 27/04z, with the primary
hazard from any thunderstorm(s) that do impact a given terminal
being gusty and erratic winds of upwards of 40kts. Local mountain
obscuration is possible this afternoon and evening, but widespread
obscuration is not expected. - Moldan
Refer to weather.gov/zlc for more detailed regional aviation
weather and hazard information.
&&
.PRELIMINARY POINT TEMPS/POPS...
GTF 57 84 56 83 / 60 20 30 20
CTB 51 76 52 75 / 20 20 20 30
HLN 56 86 56 86 / 40 30 30 30
BZN 51 90 51 88 / 20 20 20 20
WYS 39 81 40 83 / 10 0 0 20
DLN 47 85 48 84 / 20 30 20 20
HVR 56 84 57 83 / 40 10 30 60
LWT 54 82 52 77 / 50 20 40 50
&&
.TFX WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
http://www.weather.gov/greatfalls
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