SEVERE WEATHER WARNING: Severe Thunderstorm Watch in Effect for MT.  More Info >>
Home / Local Weather & Traffic / Montana / Helena / Weather Forecast

Helena, MT Weather Tomorrow

Weather conditions can change quickly, so check tomorrow's Helena forecast and the complete 5 day outlook with daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Helena area.
Updated: Wed Sep 2nd 2026 4:45 PM MDT
Helena, MT Weather – 9-2 – Overcast
84° / 52°
Overcast
Daytime highs will reach 84°F with lows dropping to 52°F in Helena, where skies will be overcast. Rainfall predicted to have a 65% chance with an estimated 0.22in. Winds will be strong at speeds peaking at 22mph and gusts of 31.3mph at 5 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 52% at 11 PM and 32% being its lowest at 6 PM. Barometric pressure is its highest of 29.74inHg at 10 PM, a lowest point of 29.66inHg at 6 PM with an avg 29.7inHg.
Helena, MT Weather – 9-3 – Overcast
72° / 50°

Weather Tomorrow

Overcast
Skies will be overcast in Helena, with a high of 72°F and a low of 50°F. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 15mph on average and gusts of 22.8mph at 7 AM. Humidity levels should be comfortable, sitting around 36% on average, the maximum being 52% at 12 AM and 21% being its lowest at 5 PM. Barometric pressure is its highest of 29.73inHg at 10 PM, a lowest point of 29.62inHg at 5 PM with an avg 29.7inHg.
Helena, MT Weather – 9-4 – Sunny
76° / 47°
Sunny
In Helena, sunshine is likely with a high near 76°F and a low around 47°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 14mph on average and gusts of 22.9mph at 5 PM. Humidity levels should be comfortable, sitting around 41% on average, the maximum being 61% at 11 PM and 19% being its lowest at 2 PM. Barometric pressure is its highest of 29.88inHg at 11 PM, a lowest point of 29.62inHg at 2 PM with an avg 29.71inHg.
Helena, MT Weather – 9-5 – Scattered Showers
75° / 49°
Scattered Showers
Daytime highs will reach 75°F with lows dropping to 49°F in Helena, where on and off showers are set to occur. Rainfall predicted to have a 57% chance with an estimated 0.06in. Winds will be light at 9mph and gusts of 19mph at 4 PM. Humidity levels should be comfortable, sitting around 56% on average, the maximum being 81% at 7 AM and 22% being its lowest at 4 PM. Barometric pressure is its highest of 30inHg at 11 PM, a lowest point of 29.8inHg at 5 PM with an avg 29.91inHg.
Helena, MT Weather – 9-6 – Partly Cloudy
61° / 46°
Partly Cloudy
In Helena, overcast conditions are likely with a high near 61°F and a low around 46°F. Rainfall predicted to have a 61% chance with an estimated 0.07in. Wind will be moderate, blowing around 12mph on average and gusts of 19.9mph at 2 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 94% at 5 AM and 53% being its lowest at 3 PM. Barometric pressure is its highest of 30.08inHg at 10 PM, a lowest point of 29.95inHg at 4 PM with an avg 30.03inHg.
Helena, MT Weather – 9-7 – Light Rain Shower
52° / 45°
Light Rain Shower
Helena may see rain, with daytime highs of 52°F and overnight lows near 45°F. The chance of rain is 91% with an estimated 1.12in. Winds will be light at 5mph and gusts of 10.3mph at 1 AM. High humidity with average of 91% is anticipated, the maximum being 97% at 5 AM and 78% being its lowest at 6 PM. Barometric pressure is its highest of 30.06inHg at 12 AM, a lowest point of 29.95inHg at 6 PM with an avg 29.99inHg.

Currently

Overcast 69°F
29.64 inHg.
Barometer
38%
Humidity
W 29.5 mph
Wind
Overcast

5 Day Forecast Nearby

More Local Information

Bookmark and Share

Get the LocalConditions.com App on Google Play
Sign up for a membership to go Ad free

Helena Community Weather Reports

Write your own Helena, MT report, forecast, or traffic update:


Will not be posted, shared or used for marketing!

Please note by clicking on "Post" you acknowledge that you have read our Privacy Policy and Terms of Service and the Helena, MT report and/or forecast you are posting is in compliance with such terms. If you are under 18, do not submit this form. Be respectful! Inappropriate content will be removed by a moderator.