Great Falls weather in July: Great Falls, Montana: normal highs, lows, rain and records for July
Great Falls in July has a normal high of 84°F and a normal low of 51°F, a daily mean of 68°F, rising from 79°F on the 1st to 87°F by the 31st. Measurable precipitation falls on 7 days in a normal July, 1.23 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 11°C, 31 mm of precipitation in July.
- NOAA stationGreat Falls Airport
- Station IDUSW00024143
- Location47.47°N 111.38°W
- Elevation3,664 ft (1,117 m)
- From the center4 miles
- Population60,013
- Jan 35° 15°
- Feb 37° 15°
- Mar 46° 22°
- Apr 55° 30°
- May 65° 38°
- Jun 73° 46°
- Jul 84° 51°
- Aug 83° 50°
- Sep 72° 43°
- Oct 57° 33°
- Nov 44° 24°
- Dec 36° 16°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Great Falls in July?
The normal high is 84°F and the normal low 51°F, for a daily mean of 67.9°F. July is 8.5°F warmer than June and 1.2°F warmer than August. July is the warmest month of the year in Great Falls and the 5th wettest. Across the month the normal high rises 8°F, from 79°F on July 1 to 87°F on July 31. From one year to the next July's mean temperature typically moves about 3.8°F either way (NOAA's standard deviation), so roughly two Julys in three average between 64°F and 72°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 79°F | 49°F | 31% | 15% |
| July 8 | 82°F | 50°F | 28% | 12% |
| July 15 | 85°F | 52°F | 24% | 11% |
| July 22 | 87°F | 53°F | 22% | 10% |
| July 31 | 87°F | 53°F | 21% | 9% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 28, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 79°F | 49°F | 31% | 15% | 15 h 50 min |
| July 2 | 79°F | 49°F | 31% | 14% | 15 h 50 min |
| July 3 | 80°F | 49°F | 30% | 14% | 15 h 50 min |
| July 4 | 80°F | 49°F | 30% | 14% | 15 h 50 min |
| July 5 | 81°F | 50°F | 29% | 13% | 15 h 50 min |
| July 6 | 81°F | 50°F | 29% | 13% | 15 h 50 min |
| July 7 | 81°F | 50°F | 28% | 13% | 15 h 50 min |
| July 8 | 82°F | 50°F | 28% | 12% | 15 h 50 min |
| July 9 | 82°F | 50°F | 27% | 12% | 15 h 50 min |
| July 10 | 83°F | 51°F | 27% | 12% | 15 h 50 min |
| July 11 | 83°F | 51°F | 26% | 12% | 15 h 40 min |
| July 12 | 84°F | 51°F | 26% | 12% | 15 h 40 min |
| July 13 | 84°F | 51°F | 25% | 11% | 15 h 40 min |
| July 14 | 84°F | 51°F | 25% | 11% | 15 h 40 min |
| July 15 | 85°F | 52°F | 24% | 11% | 15 h 40 min |
| July 16 | 85°F | 52°F | 24% | 11% | 15 h 40 min |
| July 17 | 85°F | 52°F | 24% | 11% | 15 h 30 min |
| July 18 | 86°F | 52°F | 23% | 10% | 15 h 30 min |
| July 19 | 86°F | 52°F | 23% | 10% | 15 h 30 min |
| July 20 | 86°F | 52°F | 23% | 10% | 15 h 30 min |
| July 21 | 87°F | 53°F | 22% | 10% | 15 h 30 min |
| July 22 | 87°F | 53°F | 22% | 10% | 15 h 20 min |
| July 23 | 87°F | 53°F | 22% | 10% | 15 h 20 min |
| July 24 | 87°F | 53°F | 22% | 10% | 15 h 20 min |
| July 25 | 87°F | 53°F | 22% | 10% | 15 h 20 min |
| July 26 | 87°F | 53°F | 21% | 10% | 15 h 10 min |
| July 27 | 87°F | 53°F | 21% | 10% | 15 h 10 min |
| July 28 | 87°F | 53°F | 21% | 10% | 15 h 10 min |
| July 29 | 87°F | 53°F | 21% | 9% | 15 h 10 min |
| July 30 | 87°F | 53°F | 21% | 9% | 15 h |
| July 31 | 87°F | 53°F | 21% | 9% | 15 h |
- Normal high
- 84°FJuly average
- Normal low
- 51°FJuly average
- Precipitation
- 1.23 inmonth total
- Days with precipitation
- 70.01 inch or more
- Days at 90°F or more
- 10
- Daylight
- 15 h 50 min to 15 hJuly 1 to July 31
- Days at 70°F or more
- 29
- Days at 80°F or more
- 22
- Sunshine
- 87%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024143; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Great Falls in July?
On a given July day the chance of 0.01 inch or more is 25% on average, highest around July 1 (31%). In all, 1.23 in falls on 7 days of a normal July.
In a normal July in Great Falls, 10 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024143.
How humid and windy is Great Falls in July?
At 3 p.m. the normal temperature is 84°F with 23% relative humidity and a dew point of 42°F; at 6 a.m. it is 58°F with 64% humidity. The wind averages 8.8 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 58°F | 46°F | 64% | 6.8 mph | 79% |
| 9 a.m. | 71°F | 46°F | 42% | 8.3 mph | 80% |
| noon | 80°F | 44°F | 28% | 9.3 mph | 80% |
| 3 p.m. | 84°F | 42°F | 23% | 10.4 mph | 73% |
| 6 p.m. | 81°F | 42°F | 25% | 11.1 mph | 71% |
| 9 p.m. | 69°F | 44°F | 40% | 9.1 mph | 75% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024143. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for July in Great Falls?
The warmest July temperature on Great Falls's official record (since 1891) is 107°F, on July 25, 1933; the coldest is 35°F, on July 1, 1894. The wettest July brought 5.45 in (1909).
The July mean against the 1991-2020 normal of 67.9°F: 2021 73.7°F (+5.8), 2022 71.1°F (+3.2), 2023 68.5°F (+0.6), 2024 70.5°F (+2.6), 2025 68.1°F (+0.2), 2026 72.0°F (+4.1). 6 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 73.7°F | +5.8°F | 0.32 in |
| 2022 | 71.1°F | +3.2°F | 1.45 in |
| 2023 | 68.5°F | +0.6°F | 0.62 in |
| 2024 | 70.5°F | +2.6°F | 1.00 in |
| 2025 | 68.1°F | +0.2°F | 1.75 in |
| 2026 | 72.0°F | +4.1°F | 0.27 in |
Source: records: ACIS, NWS threaded record GTFthr; recent months: ACIS, station USW00024143. Records and recent months use complete months only.
How does July in Great Falls compare across Montana?
Across the 141 places PlainClimate covers in Montana, July normal highs run from 73°F in St. Mary to 91°F in Broadus; Great Falls's is 84°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.