Weather tomorrow: Great Falls
Forecast for tomorrow, 29 September: overcast. The daily air temperature range is 12 to 21 °C. Chance of precipitation tomorrow according to the daily forecast: 5%. Forecast precipitation amount: 0 mm. Wind from the southwest at 11.1 m/s.
tuesday 29 september
Overcast
+21°
+12°
Sunset 19:08
G/m activity 2
Precipitation probability 5%
Precipitation 0.0 mm
Wind
11.1 m/s
Pressure 878.6 hPa
Index UV 4
Humidity 30%
Sunrise 07:22
Moon Waning Gibbous
Sunrise 07:22
Sunset 19:08
G/m activity 2
Moon Waning Gibbous
00:00
11°
SW
3.3 m/s01:00
11°
SW
3.6 m/s02:00
11°
SW
4.2 m/s03:00
11°
SW
5 m/s04:00
13°
SW
5.8 m/s05:00
13°
SW
5.8 m/s06:00
13°
SW
6.4 m/s07:00
13°
SW
7.5 m/s08:00
14°
SW
8.3 m/s09:00
16°
SW
8.6 m/s10:00
18°
SW
10.6 m/s11:00
19°
SW
10.8 m/s12:00
21°
SW
10.3 m/s13:00
22°
SW
10.8 m/s14:00
22°
W
10.8 m/s15:00
22°
W
9.7 m/s16:00
22°
W
7.8 m/s17:00
22°
W
9.2 m/s18:00
21°
SW
9.4 m/s19:00
19°
SW
8.6 m/s20:00
19°
W
10 m/s21:00
18°
W
9.2 m/s22:00
18°
W
9.2 m/s23:00
17°
SW
11.1 m/sWhat is the atmospheric pressure in Great Falls tomorrow?
Pressure adjusted for location elevation. Location elevation: 1113 m relative to sea level
Forecast for 29.09.2026 · Local time
Pressure: 878.6–881.3 hPa.
Minimum: 878.6 hPa05:00–06:00
Maximum: 881.3 hPa10:00–12:00
Largest change over 3 hours:
−1.3 hPa · 02:00–05:00
First of 10 intervals with the same change magnitude shown.
hPa · Change over the previous 3 hours
Colours show pressure relative to this day’s range
Lower · 878.6 Scale midpoint · 879.9 Higher · 881.3 Largest change over 3 hoursWhat is the chance of precipitation in Great Falls tomorrow?
Chance of precipitation tomorrow according to the daily forecast: 5%.
Precipitation for tomorrow
| 00:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
|---|---|---|
| 01:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 02:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 03:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 8% |
| 04:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 4% |
| 05:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 2% |
| 06:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 07:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 08:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 8% |
| 09:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 0% |
| 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 (%): 1% |
| 12:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 1% |
| 13:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 0% |
| 14:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 0% |
| 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 (%): 4% |
| 19:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 10% |
| 20:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 10% |
| 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 (%): 10% |
| 23:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 10% |
Great Falls weather tomorrow: morning, afternoon and evening
Morning: clear, +14 °C. Afternoon: overcast, +19 °C. Evening: overcast, +21 °C.
According to the hourly forecast, tomorrow's highest temperature is expected from 13:00 to 17:00, at around +22 °C. Times are local.
Tomorrow's strongest winds are expected at 23:00 (from the southwest). The lightest winds are expected at 00:00 (from the southwest). Times are local.
Temperature and wind for tomorrow
What geomagnetic activity is forecast for Great Falls tomorrow?
The highest forecast Kp index for tomorrow is 2.
