Hourly Weather | Tomorrow Thursday, August 13, 2026
Active Weather Warnings
Helena, Montana
12 AM
Cloudy Weather
61°
Feels Like 59°
19
Humidity: 71%
UV Index: 0
Wind: 9 mph
1 AM
Cloudy Night
61°
Feels Like 57°
19
Humidity: 73%
UV Index: 0
Wind: 8 mph
2 AM
Cloudy Night
59°
Feels Like 57°
20
Humidity: 74%
UV Index: 0
Wind: 8 mph
3 AM
Cloudy Weather
59°
Feels Like 57°
20
Humidity: 76%
UV Index: 0
Wind: 7 mph
4 AM
Cloudy Weather
59°
Feels Like 57°
20
Humidity: 76%
UV Index: 0
Wind: 7 mph
5 AM
Cloudy Weather
59°
Feels Like 57°
20
Humidity: 78%
UV Index: 0
Wind: 7 mph
6 AM
Cloudy Weather
59°
Feels Like 57°
20
Humidity: 78%
UV Index: 0
Wind: 7 mph
7 AM
Cloudy Weather
59°
Feels Like 57°
20
Humidity: 81%
UV Index: 0
Wind: 6 mph
8 AM
Cloudy Weather
57°
Feels Like 57°
19
Humidity: 83%
UV Index: 1
Wind: 6 mph
9 AM
Cloudy Weather
59°
Feels Like 61°
19
Humidity: 77%
UV Index: 1
Wind: 6 mph
10 AM
Cloudy Weather
61°
Feels Like 63°
24
Humidity: 75%
UV Index: 2
Wind: 6 mph
11 AM
Cloudy Weather
61°
Feels Like 64°
47
Humidity: 72%
UV Index: 2
Wind: 6 mph
12 PM
Sunny with a Chance of Thunderstorms
63°
Feels Like 63°
51
Humidity: 72%
UV Index: 3
Wind: 6 mph
1 PM
Cloudy Weather
64°
Feels Like 68°
43
Humidity: 66%
UV Index: 4
Wind: 7 mph
2 PM
Sunny with a Chance of Thunderstorms
64°
Feels Like 63°
51
Humidity: 67%
UV Index: 3
Wind: 8 mph
3 PM
Cloudy Weather
66°
Feels Like 68°
47
Humidity: 61%
UV Index: 3
Wind: 9 mph
4 PM
Cloudy Weather
68°
Feels Like 68°
40
Humidity: 59%
UV Index: 2
Wind: 11 mph
5 PM
Cloudy Weather
68°
Feels Like 66°
33
Humidity: 55%
UV Index: 2
Wind: 11 mph
6 PM
Cloudy Weather
70°
Feels Like 68°
33
Humidity: 50%
UV Index: 1
Wind: 11 mph
7 PM
Cloudy Weather
68°
Feels Like 64°
39
Humidity: 55%
UV Index: 0
Wind: 9 mph
8 PM
Stormy Weather
64°
Feels Like 59°
51
Humidity: 65%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Weather
63°
Feels Like 61°
47
Humidity: 72%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Weather
61°
Feels Like 59°
40
Humidity: 74%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Weather
59°
Feels Like 55°
34
Humidity: 78%
UV Index: 0
Wind: 8 mph

Weather Alerts and Warnings for Helena

Severe Future Possible

Flash Flood Watch

Flash Flood Watch issued August 12 at 3:50AM MDT until August 13 at 4:00AM MDT by NWS Great Falls MT
Aug 12, 4:00 PM Aug 13, 4:00 AM
WHAT: Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch burn scar.

WHERE: A portion of central Montana, including the following
areas, Horse Gulch burn scar, including Riverside Campground.

WHEN: From this afternoon through late tonight.

IMPACTS: Heavy rainfall over the Horse Gulch burn scar is expected
up to and during the period of the watch. Residents near the Horse
Gulch burn scar should prepare for potential debris flow. Be sure
to stay up to date with information from local authorities. Heavy
rainfall could trigger flash flooding of low-lying areas, urbanized
street flooding, and debris flows in and near recent wildfire burn
scars.

ADDITIONAL DETAILS:
- National Weather Service Meteorologists are forecasting heavy
rainfall over the Horse Gulch burn scar, which may lead to flash
flooding and debris flows. Additional heavy rainfall is possible
Thursday and Friday, and additional flood statements might be
needed for those days as well.
- Some locations that may experience flash flooding include...
Horse Gulch burn scar and Riverside Campground.
- For flood safety, go to this web page.
http://www.weather.gov/safety/flood
+ Read More
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Updated: Aug 12, 4:47 AM Source: NWS Alert