190 FXUS65 KBYZ 060751 AFDBYZ Area Forecast Discussion National Weather Service Billings MT 151 AM MDT Sat Jun 6 2026 .KEY MESSAGES... - Isolated to scattered showers and thunderstorms this afternoon and evening with a late day cold front. A few thunderstorms may become strong to severe over eastern Montana. - Scattered showers and thunderstorms Sunday. A few thunderstorms may become strong to severe over eastern Montana. - Daily chance of showers and thunderstorms continue next week. && .DISCUSSION... Next 7 Days (Through next Friday)... Warm temperatures in the 80s and 90s continue today ahead of a cold front moving through this afternoon. Scattered showers and thunderstorms (30-50% chance) will begin over the west with the frontal passage, moving northeast through the evening. The best chance for strong to severe storms is from Billings east, where southeast winds will advect moisture into the region, increasing dewpoints into the 50s F and increasing CAPE values into the 1,000-2,500 J/kg range near the Dakota border. One limiting factor for storms to develop is strong capping. If frontal forcing overcomes the capping, the main threats with severe storms will be wind gusts of 75+ mph and 1 inch hail. The Storm Prediction Center has issued a Marginal Risk (level 1 of 5) for eastern Montana and northeastern Wyoming and a Slight Risk (level 2 of 5) for the northeastern corner of Montana. Sunday will see more widespread showers and thunderstorms (50-80% chance) as a trough moves through the region. Some strong to severe storms will again be possible over eastern Montana due to weak to moderate instability and another cold front moving through. The main threats will be wind gust of 65+ mph and 1 inch hail. If you have outdoor plans this weekend, make sure to stay weather aware and have a plan to move to a safe location if a storm approaches. Monday may see a brief window of dry conditions under a weak ridge before the region comes under the influence of another upper level trough, bringing daily chances of showers and thunderstorms through the week. Highs will be generally in the 80s and 90s today, decreasing to 60s over the west to low 80s over the east Sunday. Temperatures will then increase to 70s and 80s by Tuesday with the weak ridge. Then, highs decrease to near to slightly below normal, in the 60s and 70s, through the end of the week. Archer .AVIATION... Issued 06Z. VFR will prevail today. Expect breezy SW winds along the western foothills including KLVM (gusts to 30kts) this afternoon, while SE winds gust near 35kts near the Dakotas border including KBHK in the afternoon/evening. A cold front arrives late in the day shifting winds to breezy NW-N winds across the region tonight, with widespread gusts on the order of 20-30kts. The aforementioned cold front will bring isolated afternoon & evening t-storms, beginning ~20z in the west. A few strong/severe storms are possible generally north and east of KBIL and up through KMLS during the late afternoon and evening. Main threat is wind gusts of 50 kts or greater. Localized/brief MVFR conditions are possible with the strongest shower/thunderstorm activity. Late tonight the chance of showers increases west of KBIL. Showers may produce MVFR at times (possible impact at KLVM) while the high elevations are occasionally obscured. JKL && .PRELIMINARY POINT TEMP/POPS... Tdy Sun Mon Tue Wed Thu Fri ------------------------------------------------------- BIL 087 056/074 044/078 055/081 051/069 047/068 047/069 2/T 25/T 30/B 02/T 66/T 44/T 44/T LVM 081 048/069 035/073 046/071 040/059 037/061 037/062 2/T 45/T 20/B 05/T 98/T 55/T 55/T HDN 091 054/076 042/079 052/082 050/069 045/069 045/068 2/T 26/T 50/U 01/B 57/T 44/T 54/T MLS 096 058/078 046/077 055/084 054/070 048/069 048/068 1/B 24/T 61/U 20/B 55/T 44/T 34/W 4BQ 098 059/081 046/079 058/087 054/069 048/068 047/067 1/B 24/T 71/U 10/B 46/T 44/W 44/T BHK 095 059/082 044/075 053/086 052/070 046/066 046/066 0/N 32/T 71/U 11/B 45/T 44/T 43/W SHR 096 053/078 040/081 050/083 046/068 041/067 041/065 1/B 26/T 40/U 11/B 48/T 54/T 45/T && .BYZ WATCHES/WARNINGS/ADVISORIES... MT...None. WY...None. && $$ weather.gov/billings