Topeka, Kansas Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Topeka weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 9:22 AM CDT · Open-Meteo
- TodaySep 21Light Drizzle later——71°63°—
- TuesdaySep 22Clear——69°59°-2°
- WednesdaySep 23Overcast——77°54°+8°
- ThursdaySep 24Overcast16%—79°58°+2°
- FridaySep 25Light Drizzle49%—78°63°-1°
- SaturdaySep 26Drizzle49%—89°66°+11°
- SundaySep 27Clear32%—82°65°-7°
Air quality now AQI 12 · Good
AQI 12 (Good), driven by Ozone. AQI projected to climb to 31 over the next 6 hours.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 PM.
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:53 PM
- Moonset
- 1:48 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Topeka at a glance
- Today vs. normal: Today averages 67°F (high 71°F, low 63°F), about the 67°F normal for Sep 21
- Last frost: April 16 (1991–2020 median, NOAA station 7 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Topeka
- Mon71°63°5%
- Tue69°59°2%
- Wed77°54°2%
- Thu79°58°16%
- Fri78°63°49%
- Sat89°66°49%
- Sun82°65°32%
- Mon84°62°33%
- Tue79°62°39%
- Wed78°56°12%
- Thu88°60°10%
- Fri89°70°27%
- Sat76°58°20%
- Sun63°49°13%
- Mon65°45°19%
- Tue65°48°20%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Topeka
Interactive wind and temperature map centered on Topeka — it loads in your browser. Open the full weather map.
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 22) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Topeka
Topeka sits in Shawnee County, where the year’s longest day runs 14h 55m of daylight and its shortest just 9h 25m — a swing of +5h 29m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Wichita, the state’s largest city, lies about 129 miles to the SW. The nearest town Topeka tracks is Olathe, roughly 48 miles to the ESE.
Air quality in Topeka
Air quality in Topeka’s county has held roughly steady since 2020; its cleanest year on record was 2020 (median AQI 44). See the full air-quality history for Topeka.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, beans, summer squash |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
July is Topeka's warmest stretch (~80°F) and January its coldest (~30°F); precipitation crests in May at 5.2 inches and ebbs in January to 0.9 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 30° | 0.9″ | 6 |
| February | 35° | 1.3″ | 6 |
| March | 46° | 2.3″ | 8 |
| April | 56° | 3.8″ | 10 |
| May | 66° | 5.2″ | 12 |
| June | 76° | 4.9″ | 11 |
| July | 80° | 4.0″ | 9 |
| August | 78° | 4.5″ | 9 |
| September | 69° | 3.5″ | 8 |
| October | 57° | 2.9″ | 8 |
| November | 44° | 1.8″ | 6 |
| December | 34° | 1.5″ | 6 |
Regional context
Similar climates Tecumseh, KS, Grantville, KS, Silver Lake, KS
In Topeka, NOAA NCEI 1991-2020 normals put January near 30°F and July near 80°F — a 50°F seasonal arc — with about 36.5 inches of precipitation over 98 rainy or snowy days.
Precipitation in Topeka runs summer-dominant: May averages 5.2 inches across 11.9 days of warm-season storms, while January drops to 0.9 inches over 5.9 rainy days of drier cool air. Topeka shares that warm-season-wet pattern with places like Tecumseh, KS, Grantville, KS and Silver Lake, KS.
Around April 16, Topeka sheds its freezing nights — peas, lettuce, spinach, and radishes go into Topeka's beds. Topeka's heat-lovers — tomatoes, peppers, squash — hold off until Topeka's frost risk clears, 10-14 days on. By October 22, frost is back in Topeka — protect or harvest anything tender. Open lawns in Topeka whiten first when frost returns.
Similar climates: Tecumseh, KS, Grantville, KS, Silver Lake, KS, Wakarusa, KS, Auburn, KS.
Frequently asked
- When does it freeze in Topeka?
- Frost typically leaves Topeka by April 16 and returns to Topeka near October 22.
- What is the rainy season in Topeka?
- May is the wettest month in Topeka, about 5.2 inches on average; the year totals roughly 37 inches.
- What is the warmest month in Topeka?
- July is Topeka's warmest month, averaging about 80°F.
- What is the coldest month in Topeka?
- Topeka bottoms out in January, with a mean near 30°F.
- When can I start a vegetable garden in Topeka?
- Topeka's last frost (April 16) cues hardy greens; in Topeka, hold heat-lovers two weeks past.
- How many rainy days does Topeka get?
- Topeka averages about 98 days with measurable rain or snow each year.
- What hardiness zone is Topeka?
- Topeka sits in the USDA zone set by January lows near 30°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Topeka?
- Topeka's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Topeka?
- See this week's day-by-day rain chances for Topeka in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Topeka?
- Current conditions for Topeka and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Topeka forecast updated?
- The Topeka forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Topeka?
- Today's sunrise and sunset times for Topeka are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Topeka?
- The next few days in Topeka's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Topeka sits at 39.0°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Topeka
- 66601
- 66603
- 66604
- 66605
- 66606
- 66607
- 66608
- 66609
- 66610
- 66611
- 66612
- 66614
- 66615
- 66616
- 66617
- 66618
- 66619
- 66621
- 66622
- 66624
- 66625
- 66626
- 66629
- 66636
- 66647
- 66667
- 66675
- 66683
- 66699