Omaha weather in August: Omaha, Nebraska: normal highs, lows, rain and records for August
Omaha in August has a normal high of 86°F and a normal low of 66°F, a daily mean of 76°F, falling from 88°F on the 1st to 84°F by the 31st. Measurable precipitation falls on 9 days in a normal August, 4.60 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 19°C, 117 mm of precipitation in August.
- NOAA stationOmaha Eppley Airfield
- Station IDUSW00014942
- Location41.31°N 95.90°W
- Elevation982 ft (299 m)
- From the center9 miles
- Population489,265
- Jan 34° 15°
- Feb 39° 19°
- Mar 52° 30°
- Apr 64° 41°
- May 75° 53°
- Jun 84° 63°
- Jul 88° 68°
- Aug 86° 66°
- Sep 79° 56°
- Oct 66° 43°
- Nov 50° 30°
- Dec 38° 20°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Omaha in August?
The normal high is 86°F and the normal low 66°F, for a daily mean of 75.7°F. August is 2.4°F cooler than July and 8.1°F warmer than September. August is the 2nd warmest month of the year in Omaha and the 2nd wettest. Across the month the normal high falls 4°F, from 88°F on August 1 to 84°F on August 31. From one year to the next August's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 73°F and 78°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 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 88°F | 68°F | 30% | 19% |
| August 8 | 87°F | 67°F | 30% | 19% |
| August 15 | 86°F | 66°F | 29% | 18% |
| August 22 | 85°F | 65°F | 28% | 18% |
| August 31 | 84°F | 62°F | 27% | 17% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 88°F | 68°F | 30% | 19% | 14 h 20 min |
| August 2 | 88°F | 68°F | 30% | 19% | 14 h 20 min |
| August 3 | 88°F | 68°F | 30% | 19% | 14 h 20 min |
| August 4 | 87°F | 68°F | 30% | 19% | 14 h 20 min |
| August 5 | 87°F | 68°F | 30% | 19% | 14 h 20 min |
| August 6 | 87°F | 68°F | 30% | 19% | 14 h 10 min |
| August 7 | 87°F | 68°F | 30% | 19% | 14 h 10 min |
| August 8 | 87°F | 67°F | 30% | 19% | 14 h 10 min |
| August 9 | 87°F | 67°F | 30% | 19% | 14 h 10 min |
| August 10 | 87°F | 67°F | 30% | 19% | 14 h |
| August 11 | 87°F | 67°F | 29% | 19% | 14 h |
| August 12 | 86°F | 67°F | 29% | 19% | 14 h |
| August 13 | 86°F | 67°F | 29% | 19% | 14 h |
| August 14 | 86°F | 66°F | 29% | 18% | 14 h |
| August 15 | 86°F | 66°F | 29% | 18% | 13 h 50 min |
| August 16 | 86°F | 66°F | 29% | 18% | 13 h 50 min |
| August 17 | 86°F | 66°F | 29% | 18% | 13 h 50 min |
| August 18 | 86°F | 66°F | 29% | 18% | 13 h 50 min |
| August 19 | 86°F | 65°F | 28% | 18% | 13 h 40 min |
| August 20 | 85°F | 65°F | 28% | 18% | 13 h 40 min |
| August 21 | 85°F | 65°F | 28% | 18% | 13 h 40 min |
| August 22 | 85°F | 65°F | 28% | 18% | 13 h 40 min |
| August 23 | 85°F | 64°F | 28% | 18% | 13 h 30 min |
| August 24 | 85°F | 64°F | 28% | 18% | 13 h 30 min |
| August 25 | 85°F | 64°F | 28% | 18% | 13 h 30 min |
| August 26 | 84°F | 63°F | 28% | 18% | 13 h 30 min |
| August 27 | 84°F | 63°F | 28% | 17% | 13 h 20 min |
| August 28 | 84°F | 63°F | 28% | 17% | 13 h 20 min |
| August 29 | 84°F | 63°F | 27% | 17% | 13 h 20 min |
| August 30 | 84°F | 62°F | 27% | 17% | 13 h 20 min |
| August 31 | 84°F | 62°F | 27% | 17% | 13 h 10 min |
- Normal high
- 86°FAugust average
- Normal low
- 66°FAugust average
- Precipitation
- 4.60 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 8
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 25
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014942; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Omaha in August?
On a given August day the chance of 0.01 inch or more is 29% on average, highest around August 1 (30%). In all, 4.60 in falls on 9 days of a normal August, 2 of them with an inch or more.
In a normal August in Omaha, 8 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014942.
How humid and windy is Omaha in August?
At 3 p.m. the normal temperature is 82°F with 51% relative humidity and a dew point of 62°F; at 6 a.m. it is 65°F with 87% humidity. The wind averages 8.5 mph, most often from the south-southeast in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 65°F | 61°F | 87% | 6.8 mph | 53% |
| 9 a.m. | 72°F | 63°F | 73% | 8.8 mph | 62% |
| noon | 79°F | 63°F | 57% | 10.6 mph | 52% |
| 3 p.m. | 82°F | 62°F | 51% | 11.2 mph | 55% |
| 6 p.m. | 80°F | 63°F | 57% | 9.9 mph | 58% |
| 9 p.m. | 72°F | 63°F | 75% | 7.2 mph | 73% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014942. 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 August in Omaha?
The warmest August temperature on Omaha's official record (since 1871) is 111°F, on August 3, 1930; the coldest is 43°F, on August 20, 1950. The wettest August brought 12.50 in (1903).
The August mean against the 1991-2020 normal of 75.7°F: 2021 78.0°F (+2.3), 2022 76.7°F (+1.0), 2023 76.5°F (+0.8), 2024 75.2°F (−0.5), 2025 74.3°F (−1.4), 2026 76.5°F (+0.8). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 78.0°F | +2.3°F | 5.31 in |
| 2022 | 76.7°F | +1.0°F | 2.67 in |
| 2023 | 76.5°F | +0.8°F | 3.55 in |
| 2024 | 75.2°F | −0.5°F | 3.00 in |
| 2025 | 74.3°F | −1.4°F | 3.15 in |
| 2026 | 76.5°F | +0.8°F | 5.90 in |
Source: records: ACIS, NWS threaded record OMAthr; recent months: ACIS, station USW00014942. Records and recent months use complete months only.
How does August in Omaha compare across Nebraska?
Across the 137 places PlainClimate covers in Nebraska, August normal highs run from 81°F in Oakdale to 90°F in Beaver City; Omaha's is 86°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.