Cosmo, NE Weather Forecast
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Cosmo Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
| Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of T-Storm | Partly Cloudy | Chance of T-Storm |
| Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C |
| POP: 30% | POP: 40% | POP: 30% | POP: 20% | POP: 20% | POP: 40% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 532 AM CDT Sat Sep 05 2026 

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Issued: 658 AM CDT Sat Sep 5 2026
Key Messages
- A Heat Advisory remains in effect for counties southeast of a line from Harlan to Polk counties until 8PM tonight. Temperatures as high as 101 degrees with heat index values as high as 107 degrees will be possible.
- A Marginal risk of severe weather is in place for areas northwest of a line from Polk to Webster to Rooks county. The strongest storms may be capable of producing hail up to the size of quarters, gusty winds up to near 60MPH and heavy rainfall.
- Though a few afternoon to ev...
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