Weather tomorrow: Helena
Forecast for tomorrow, 29 September: overcast. The daily air temperature range is 6 to 21 °C. Chance of precipitation tomorrow according to the daily forecast: 4%. Forecast precipitation amount: 0 mm. Wind from the southwest at 5.3 m/s.
tuesday 29 september
Overcast
+21°
+6°
Sunset 19:12
G/m activity 2
Precipitation probability 4%
Precipitation 0.0 mm
Wind
5.3 m/s
Pressure 869.3 hPa
Index UV 4
Humidity 42%
Sunrise 07:24
Moon Waning Gibbous
Sunrise 07:24
Sunset 19:12
G/m activity 2
Moon Waning Gibbous
00:00
8°
SW
3.3 m/s01:00
8°
SW
3.3 m/s02:00
7°
SW
3.3 m/s03:00
7°
SW
3.6 m/s04:00
7°
SW
3.3 m/s05:00
7°
SW
3.1 m/s06:00
7°
SW
2.8 m/s07:00
7°
SW
2.5 m/s08:00
7°
SW
2.5 m/s09:00
11°
SW
1.7 m/s10:00
14°
W
0.8 m/s11:00
16°
NW
1.1 m/s12:00
18°
W
2.5 m/s13:00
19°
W
3.9 m/s14:00
19°
W
4.7 m/s15:00
20°
W
4.4 m/s16:00
20°
W
5.6 m/s17:00
19°
W
5.3 m/s18:00
18°
W
3.9 m/s19:00
14°
W
2.8 m/s20:00
13°
SW
3.3 m/s21:00
12°
SW
3.3 m/s22:00
12°
SW
3.1 m/s23:00
12°
SW
3.6 m/sWhat is the atmospheric pressure in Helena tomorrow?
Pressure adjusted for location elevation. Location elevation: 1225 m relative to sea level
Forecast for 29.09.2026 · Local time
Pressure: 869.3–870.6 hPa.
Minimum: 869.3 hPa02:00–08:00Also at other hours
Maximum: 870.6 hPa00:00–01:00Also at other hours
Largest change over 3 hours:
−1.3 hPa · 00:00–03:00
First of 8 intervals with the same change magnitude shown.
hPa · Change over the previous 3 hours
Colours show pressure relative to this day’s range
Lower · 869.3 Scale midpoint · 869.9 Higher · 870.6 Largest change over 3 hoursWhat is the chance of precipitation in Helena tomorrow?
Chance of precipitation tomorrow according to the daily forecast: 4%.
Precipitation for tomorrow
| 00:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 2% |
|---|---|---|
| 01:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 2% |
| 02:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 2% |
| 03:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 3% |
| 04:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 3% |
| 05:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 6% |
| 06:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 12% |
| 07:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 3% |
| 08:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 3% |
| 09:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 10:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 11:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 0% |
| 12:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 3% |
| 13:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 14:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 4% |
| 15:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 16:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 17:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 18:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 19:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 9% |
| 20:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 8% |
| 21:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 10% |
| 22:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 12% |
| 23:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 12% |
Helena weather tomorrow: morning, afternoon and evening
Morning: clear, +6 °C. Afternoon: overcast, +18 °C. Evening: overcast, +19 °C.
According to the hourly forecast, tomorrow's highest temperature is expected from 15:00 to 16:00, at around +20 °C. Times are local.
Tomorrow's strongest winds are expected at 16:00 (from the west). The lightest winds are expected at 10:00 (from the west). Times are local.
Temperature and wind for tomorrow
What geomagnetic activity is forecast for Helena tomorrow?
The highest forecast Kp index for tomorrow is 2.
