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Sunny, quiet Wednesday forecast ahead of rainy, cooler end of week

Today's forecast from the National Weather Service calls for a high of 77 under sunny skies.


CHEYENNE, Wyo. — Cooler temperatures and wetter weather are forecast for Cheyenne, but not until Thursday and Friday.

Today’s forecast from the National Weather Service in Cheyenne calls for a high of 77 under sunny skies. Mostly dry air will remain in the area until later this afternoon, when a cool front dragging some moisture will clip Wyoming on its way to Nebraska. That will introduce a 20% chance for afternoon showers that will persist through 9 p.m. Overnight temperatures will be comparable to this morning with a low near 48.

Thursday’s high will be about 15 degrees cooler than today’s, but that doesn’t necessarily mean cooler weather is here to stay. The growing season will continue for a bit with temperatures rebounding back into the upper 70s through the weekend. On average, Cheyenne will see its first freeze around Sept. 29, although it has seen it as early as Sept. 7 and as late as Oct. 27. Last year, the first freeze didn’t happen until Oct. 8, according to the NWS in Cheyenne.

(National Weather Service graphic)

That said, Thursday’s high will max out at around 61 degrees as clouds block the sun and rain falls. There’s a 60% chance for showers around Cheyenne with a possible thunderstorm in the afternoon. A 50% chance for thunderstorms continues into Thursday night, falling to 30% in the early Friday morning hours. The overnight low is forecast at 44 degrees.

Friday will begin the process of warming the area back up as the high returns to 68. There’s a 20% chance for showers in the morning, but the air is expected to dry and leave a mostly sunny day. Overnight, clear skies will allow the low to drop to around 41, according to the forecast.

Saturday and Sunday will see sunny skies and highs returning to the mid- to high 70s.


More on the forecast is available from the NWS in Cheyenne.