Eagle Weather in September
Average highs run from 84°F on September 1 to 73°F on September 30, and lows from 55°F to 44°F. Normal precipitation for the month is 2.17 in over about 8 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 79°F
- Average low
- 50°F
- Precipitation
- 2.17 in
- Record high
- 97°FSep 6, 2020
- Record low
- 24°FSep 13, 1929
- Chance of a freeze
- 8%
- Days of 90°F or more
- 2.6
- Daylight
- 13 h 02 min to 11 h 48 min
- Cloud cover
- 48%
- Humidity
- 49%
- Dew point
- 30°F
- Wind
- 4.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 84°F | 55°F | 93°F 2019 | 42°F 1932 | 28% |
| Sep 2 | 84°F | 55°F | 95°F 2019 | 42°F 1928 | 28% |
| Sep 3 | 84°F | 55°F | 95°F 2019 | 43°F 1929 | 28% |
| Sep 4 | 83°F | 54°F | 96°F 2017 | 40°F 1929 | 28% |
| Sep 5 | 83°F | 54°F | 95°F 2020 | 38°F 1929 | 28% |
| Sep 6 | 83°F | 54°F | 97°F 2020 | 40°F 1921 | 28% |
| Sep 7 | 83°F | 53°F | 97°F 2022 | 38°F 1929 | 28% |
| Sep 8 | 82°F | 53°F | 96°F 2022 | 38°F 1929 | 28% |
| Sep 9 | 82°F | 53°F | 95°F 2022 | 25°F 1929 | 28% |
| Sep 10 | 82°F | 53°F | 93°F 2021 | 30°F 1929 | 28% |
| Sep 11 | 81°F | 52°F | 94°F 2021 | 34°F 1929 | 28% |
| Sep 12 | 81°F | 52°F | 88°F 1971 | 30°F 1929 | 28% |
| Sep 13 | 81°F | 52°F | 89°F 1937 | 24°F 1929 | 28% |
| Sep 14 | 80°F | 51°F | 89°F 1946 | 35°F 1929 | 27% |
| Sep 15 | 80°F | 51°F | 90°F 2018 | 37°F 1912 | 27% |
| Sep 16 | 79°F | 51°F | 91°F 2018 | 33°F 1912 | 27% |
| Sep 17 | 79°F | 50°F | 89°F 2018 | 34°F 1971 | 27% |
| Sep 18 | 79°F | 50°F | 94°F 1937 | 34°F 1971 | 27% |
| Sep 19 | 78°F | 49°F | 94°F 1937 | 30°F 1971 | 26% |
| Sep 20 | 78°F | 49°F | 91°F 1938 | 34°F 1971 | 26% |
| Sep 21 | 77°F | 48°F | 86°F 1944 | 30°F 1921 | 26% |
| Sep 22 | 77°F | 48°F | 85°F 1935 | 29°F 1921 | 26% |
| Sep 23 | 76°F | 48°F | 88°F 1938 | 32°F 1912 | 25% |
| Sep 24 | 76°F | 47°F | 83°F 1947 | 33°F 1920 | 25% |
| Sep 25 | 75°F | 47°F | 85°F 2020 | 32°F 1920 | 25% |
| Sep 26 | 75°F | 46°F | 93°F 1914 | 32°F 1912 | 25% |
| Sep 27 | 75°F | 46°F | 87°F 1938 | 32°F 1912 | 25% |
| Sep 28 | 74°F | 45°F | 88°F 1944 | 32°F 1912 | 25% |
| Sep 29 | 74°F | 45°F | 88°F 1938 | 32°F 1912 | 25% |
| Sep 30 | 73°F | 44°F | 87°F 2024 | 30°F 1921 | 25% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:36 AM, sunset 7:38 PM
- September 30
- sunrise 7:03 AM, sunset 6:51 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00057618 (Shoshone), public domain. Records: NOAA GHCN-Daily, station USC00057618, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.