Temperature
Warm by day, brisk at night.
81°Ftypical September high
Typical range
September climate
September in Atchison
United States · North America
Warm days and plenty of sun.
One of the best months here
Late
Daytime high
81°F
Lows around 60°F
Rain
Several rainy days
Sun
10.5 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days, mostly brief and on-and-off. About 7 wet days, fewer than in most months.
23%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
10.3 hSeptember sunshine
Heat & humidity by month
Warm days with mostly dry air.
LowSeptember Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 76° and nights feel near 61°.
FrigidFreezingVery coldColdCoolComfortableWarmHotNight hours
Clear sky
Mostly clear skies this month.
61%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
8 mphSeptember Light breeze
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 78°F, easing to about 75°F in early evening.
Avg temp Typical range
Morning68°F
Rain9%
Cloud41%
Humid airLow
Sun intensityLow
Best windowMidday77°F
Rain10%
Cloud42%
Humid airModerate
Sun intensityStrong
Late afternoon78°F
Rain10%
Cloud43%
Humid airModerate
Sun intensityModerate
Early evening75°F
Rain8%
Cloud38%
Humid airModerate
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 39 | 22 | 1.3 | 5 | 6.7 | 70 |
| Feb | 44 | 25 | 1.6 | 6 | 7.7 | 68 |
| Mar | 56 | 36 | 3.0 | 9 | 8.3 | 65 |
| Apr | 67 | 46 | 4.3 | 10 | 9.2 | 62 |
| May | 76 | 57 | 5.6 | 13 | 10.2 | 68 |
| Jun | 86 | 67 | 4.8 | 11 | 12.2 | 68 |
| Jul | 89 | 71 | 3.6 | 9 | 12.4 | 69 |
| Aug | 88 | 69 | 3.6 | 9 | 11.5 | 70 |
| Sep | 81 | 60 | 3.0 | 7 | 10.3 | 69 |
| Oct | 69 | 48 | 3.4 | 8 | 8.3 | 66 |
| Nov | 55 | 37 | 2.1 | 6 | 7.2 | 67 |
| Dec | 44 | 26 | 1.6 | 5 | 6.6 | 71 |
Similar climates
Similar
Similar travel styleAdrianUnited StatesSimilar travel styleAkronUnited StatesSimilar travel styleAlbiaUnited StatesSimilar travel styleAlexandriaUnited States
Want a side-by-side climate view? Compare Atchison with Adrian.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology