Grinnell Weather Forecast 15 Days, Weather in Grinnell Today
Current weather conditions and 15 day weather forecast for Grinnell, Iowa, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Grinnell
| 20 June 2026 Saturday 22.2 ° C / 72°F  Sunny |
Feels Like : 24.6 ° C / 76.3°F Humidity : % 49 Pressure : 1017 mb Wind Speed : 9 kmph / 5.6 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Grinnell, IA, USA
Weather Forecast for next 15 Days for Grinnell including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Grinnell, Iowa state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 June 2026 Saturday | Sunny |
11.8 ° C (53.2°F) |
26.6 ° C (79.9°F) |
19.5 ° C (67.1°F) |
% 66 | 4% | 9.5 | Sunrise:05:36 AM Sunset: 08:48 PM |
Moonrise:11:48 AM Moonset: 12:19 AM Moon Phase ( First Quarter ) |
|
| 21 June 2026 Sunday |  Moderate rain |
13 ° C (55.5°F) |
17.1 ° C (62.8°F) |
15.5 ° C (60°F) |
% 90 | 89% | 1.7 | Sunrise:05:36 AM Sunset: 08:49 PM |
Moonrise:01:00 PM Moonset: 12:42 AM Moon Phase ( First Quarter ) |
|
| 22 June 2026 Monday | Sunny |
11.3 ° C (52.3°F) |
20.4 ° C (68.7°F) |
15.5 ° C (59.8°F) |
% 85 | 14% | 6.5 | Sunrise:05:36 AM Sunset: 08:49 PM |
Moonrise:02:11 PM Moonset: 01:04 AM Moon Phase ( First Quarter ) |
|
| 23 June 2026 Tuesday | Sunny |
13 ° C (55.4°F) |
22.6 ° C (72.7°F) |
17.9 ° C (64.2°F) |
% 77 | 9% | 4.2 | Sunrise:05:36 AM Sunset: 08:49 PM |
Moonrise:03:20 PM Moonset: 01:26 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 June 2026 Wednesday |  Patchy rain nearby |
15.2 ° C (59.3°F) |
24.8 ° C (76.6°F) |
20 ° C (68.1°F) |
% 77 | 57% | 0.4 | Sunrise:05:37 AM Sunset: 08:49 PM |
Moonrise:04:29 PM Moonset: 01:50 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 June 2026 Thursday | Sunny |
15.1 ° C (59.1°F) |
24.1 ° C (75.4°F) |
19.1 ° C (66.4°F) |
% 71 | 8% | 5 | Sunrise:05:37 AM Sunset: 08:49 PM |
Moonrise:05:37 PM Moonset: 02:17 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 June 2026 Friday | Patchy rain nearby |
16.1 ° C (61°F) |
19.1 ° C (66.3°F) |
17.5 ° C (63.4°F) |
% 91 | 57% | 4 | Sunrise:05:37 AM Sunset: 08:49 PM |
Moonrise:06:43 PM Moonset: 02:49 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 June 2026 Saturday | Patchy rain nearby |
15.4 ° C (59.8°F) |
20.7 ° C (69.2°F) |
18.4 ° C (65.2°F) |
% 89 | 65% | 4 | Sunrise:05:38 AM Sunset: 08:49 PM |
Moonrise:07:44 PM Moonset: 03:28 AM Moon Phase ( Full Moon ) |
|
| 28 June 2026 Sunday | Patchy rain nearby |
14.9 ° C (58.9°F) |
27.4 ° C (81.2°F) |
20.1 ° C (68.1°F) |
% 92 | 79% | 5 | Sunrise:05:38 AM Sunset: 08:49 PM |
Moonrise:08:38 PM Moonset: 04:15 AM Moon Phase ( Full Moon ) |
|
| 29 June 2026 Monday | Patchy rain nearby |
15.2 ° C (59.3°F) |
24.8 ° C (76.6°F) |
20 ° C (68°F) |
% 90 | 73% | 5 | Sunrise:05:39 AM Sunset: 08:49 PM |
Moonrise:09:22 PM Moonset: 05:10 AM Moon Phase ( Full Moon ) |
|
| 30 June 2026 Tuesday | Moderate rain |
18.9 ° C (66°F) |
24 ° C (75.2°F) |
20.9 ° C (69.6°F) |
% 93 | 91% | 5 | Sunrise:05:39 AM Sunset: 08:49 PM |
Moonrise:09:59 PM Moonset: 06:10 AM Moon Phase ( Full Moon ) |
|
| 01 July 2026 Wednesday | Patchy rain nearby |
15.3 ° C (59.6°F) |
24.2 ° C (75.5°F) |
19.5 ° C (67.1°F) |
% 81 | 25% | 4 | Sunrise:05:40 AM Sunset: 08:49 PM |
Moonrise:10:29 PM Moonset: 07:13 AM Moon Phase ( Waning Gibbous ) |
|
| 02 July 2026 Thursday | Patchy rain nearby |
15.9 ° C (60.6°F) |
25.6 ° C (78°F) |
20.7 ° C (69.2°F) |
% 79 | 21% | 5 | Sunrise:05:40 AM Sunset: 08:49 PM |
Moonrise:10:54 PM Moonset: 08:16 AM Moon Phase ( Waning Gibbous ) |
|
| 03 July 2026 Friday | Patchy rain nearby |
17.2 ° C (63°F) |
26.4 ° C (79.6°F) |
21.4 ° C (70.5°F) |
% 78 | 46% | 5 | Sunrise:05:41 AM Sunset: 08:49 PM |
Moonrise:11:15 PM Moonset: 09:19 AM Moon Phase ( Waning Gibbous ) |
|
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