Casper, Wyoming Weather Forecast
Today in Casper: clear skies with a high near 55°F and a low around 26°F. Rain chance 0%. Rain chances peak at 28% on Thursday. Warming trend: highs climb from 55°F today to 65°F by Monday.
Forecast updated 8:05 PM MDT, Oct 16
Active Weather Alerts
7-Day Forecast for Casper
Today 10/16
55°26°
Sat 10/17
64°40°
Sun 10/18
60°42°
Mon 10/19
65°36°
Tue 10/20
66°44°
Wed 10/21
67°44°
Thu 10/22
28%
67°46°
Next 24 Hours
| Now | 9 PM | 10 PM | 11 PM | Sat12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky |  | | | | | | | | | | | | | | | | |  | | | | | | |
| Temp | 46° | 45° | 44° | 42° | 42° | 42° | 41° | 41° | 40° | 40° | 40° | 40° | 41° | 45° | 49° | 53° | 57° | 60° | 62° | 64° | 64° | 62° | 58° | 55° |
| Rain | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Wind | SW 9 | SW 11 | SW 11 | SW 13 | SW 13 | SW 15 | SW 17 | SW 18 | SW 19 | SW 19 | SW 19 | SW 22 | SW 22 | SW 24 | SW 26 | SW 26 | SW 25 | SW 24 | SW 23 | SW 22 | SW 21 | SW 19 | SW 16 | SW 18 |
Growing Conditions
Growing degree days
2,999
since Apr 1, base 50°F
Rain, last 30 days
0.32 in
model analysis
Rain, year to date
6.75 in
since Jan 1
2-inch soil temperature
47°F
yesterday, daily average
Reference ET, last 7 days
0.84 in
FAO-56 grass reference
Through Oct 15. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Casper →
Current Stats & Observations
NWS Forecast
About Casper Weather
Casper sits at about 5,154 feet above sea level in Natrona County, Wyoming. About 67,598 people live in the Casper area. Official forecasts and warnings for the area come from the National Weather Service RIW office, and the nearest NEXRAD radar site is KRIW. The city is in USDA plant hardiness zone 5a, where the coldest winter night typically falls between -20 to -15°F. Over the past ten years the last spring freeze has come around May 11 and the first fall freeze around Oct 12.