Grinnell, KS Weather Forecast
Local 7-day forecast
Chance Rain Showers then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grinnell, KS in one place.
A chance of rain showers and patchy fog before 10am. Partly sunny. High near 84, with temperatures falling to around 82 in the afternoon. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Local Weather Overview
This forecast page for Grinnell, KS is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 15, 2026 2:08 PM CDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Grinnell, KS.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 2:08 PM CDT
- Forecast office
- GLD
- Source
- NOAA / NWS
Daily Outlook
This Week in Grinnell
Thursday looks like the warmest upcoming period in Grinnell at 91 degrees F.
Monday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Thursday at about 5 to 20 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 2:08 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- GLD
- Radar station
- KGLD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 65. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.
A chance of rain showers before 7am. Mostly sunny, with a high near 91. South wind 5 to 20 mph. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 64. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75. Chance of precipitation is 30%.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 53. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 74.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Chance Rain Showers then Partly Sunny
|
84°F |
5 to 10 mph
SE
|
|
Wednesday Night
Sep 16
|
Chance Showers And Thunderstorms
|
65°F |
5 to 10 mph
SE
|
|
Thursday
Sep 17
|
Chance Rain Showers then Mostly Sunny
|
91°F |
5 to 20 mph
S
|
|
Thursday Night
Sep 17
|
Slight Chance Showers And Thunderstorms
|
67°F |
15 mph
S
|
|
Friday
Sep 18
|
Slight Chance Rain Showers then Mostly Sunny
|
90°F |
10 to 15 mph
S
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms
|
64°F |
5 to 10 mph
SW
|
|
Saturday
Sep 19
|
Slight Chance Showers And Thunderstorms
|
80°F |
5 to 10 mph
N
|
|
Saturday Night
Sep 19
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
57°F |
5 to 10 mph
NE
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
75°F |
5 mph
NE
|
|
Sunday Night
Sep 20
|
Partly Cloudy then Slight Chance Rain Showers
|
53°F |
5 mph
E
|
|
Monday
Sep 21
|
Slight Chance Rain Showers then Mostly Sunny
|
74°F |
5 to 10 mph
SE
|
|
Monday Night
Sep 21
|
Partly Cloudy then Slight Chance Rain Showers
|
52°F |
5 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grinnell.