Merriam, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Merriam, a city in Johnson County, Kansas.
This Afternoon
67°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. High near 67, with temperatures falling to around 56 in the afternoon. West southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Merriam
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Chance Rain Showers | 14 mph WSW | 50% |
| Tonight | 48°F | Cloudy | 10 to 14 mph WNW | 11% |
| Wednesday | 57°F | Partly Sunny | 8 to 13 mph W | 4% |
| Wednesday Night | 43°F | Mostly Clear | 7 mph WSW | 4% |
| Thursday | 57°F | Mostly Sunny then Slight Chance Rain Showers | 6 to 9 mph WNW | 16% |
| Thursday Night | 43°F | Mostly Cloudy | 6 mph NNW | 2% |
| Friday | 56°F | Partly Sunny | 7 mph N | 6% |
| Friday Night | 41°F | Mostly Cloudy | 3 mph NNW | 0% |
| Saturday | 59°F | Partly Sunny | 3 mph W | 2% |
| Saturday Night | 41°F | Mostly Clear | 5 mph WSW | 6% |
| Sunday | 64°F | Sunny | 6 mph W | 6% |
| Sunday Night | 43°F | Mostly Clear | 6 mph SW | 0% |
| Monday | 68°F | Sunny | 7 to 10 mph SW | 0% |
| Monday Night | 47°F | Mostly Clear | 7 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Merriam (39.018, -94.694). Updated through the day.
Growing snapshot for Merriam
Last spring frost
Apr 4
First fall frost
Nov 2
Growing season
211 days
Hardiness zone
6b
More local growing data for Merriam: nearby ZIP 66203 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Bonner Springs
De Soto
Edgerton
Fairway
Gardner
Lake Quivira
Leawood
Lenexa
Mission
Mission Hills
Olathe
Overland Park
Prairie Village
Roeland Park
Shawnee
Westwood
Climate data from the nearest NOAA station, Kansas City Downtown Ap, Mo (9.1 mi from Merriam). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.