ASUS45 KTFX 181510 RWRMT Montana Regional Weather Roundup National Weather Service Great Falls MT 900 AM MDT MON MAY 18 2026 NOTE: "FAIR" indicates few or no clouds below 12,000 feet with no significant weather and/or obstructions to visibility. MTZ001>007-043-181600- West of the divide CITY SKY/WX TMP DP RH WIND PRES REMARKS Kalispell PTSUNNY 41 34 76 S3 30.16S Missoula MOSUNNY 38 30 73 CALM 30.18S Butte CLOUDY 35 17 47 N10 30.14S WCI 27 Anaconda CLOUDY 34 28 76 N3 30.15S Hamilton SUNNY 39 28 65 CALM 30.18S Mullan Pass MOSUNNY 36 29 75 CALM 30.12S Plains MOSUNNY 37 37 100 CALM 30.18F Ronan SUNNY 41 32 70 CALM 30.17R $$ MTZ008-052>055-181600- Southwest Montana CITY SKY/WX TMP DP RH WIND PRES REMARKS Bozeman CLOUDY 37 25 61 NW9 30.13S WCI 30 Dillon PTSUNNY 40 21 46 N20G28 30.10S WCI 30 Ennis LGT SNOW 32 27 80 MISG 30.15R HAZE Twin Bridges PTSUNNY 39 21 48 N23 30.14R WCI 29 W Yellowstone CLOUDY 30 21 69 NE17 30.02S WCI 18 $$ MTZ009-010-012-014-046-048-049-054-181600- East Slopes and Central Montana CITY SKY/WX TMP DP RH WIND PRES REMARKS Cut Bank N/A N/A N/A N/A MISG 30.14S Great Falls MOSUNNY 40 33 76 W6 30.15S WCI 36 Helena CLOUDY 40 26 57 NW3 30.15S Malmstrom AFB PTSUNNY 42 35 74 W7 30.13S Bowmans Corner SUNNY 37 33 86 SE3 N/A Fairfield MOSUNNY 39 33 78 CALM 30.11S Power SUNNY 40 36 83 NW7 30.12R WCI 36 $$ MTZ011-013-016-021-045-047-050-051-181600- North Central Montana CITY SKY/WX TMP DP RH WIND PRES REMARKS Havre PTSUNNY 37 28 70 N5 30.18R WCI 33 Denton PTSUNNY 36 32 87 NW14 30.11 WCI 27 Fort Benton CLOUDY 39 35 85 VRB7 30.16R WCI 34 Geyser PTSUNNY 36 32 87 CALM 30.10S Grass Range CLOUDY 36 27 69 NE14 30.05R WCI 27 N Bar Ranch CLOUDY 34 28 80 NW20G28 30.08R WCI 22 Stanford LGT RAIN 34 32 93 NW9 30.09 WCI 26 $$ MTZ017>020-022>027-061-062-181600- Northeast Montana CITY SKY/WX TMP DP RH WIND PRES REMARKS Glasgow CLOUDY 37 32 82 NW13 30.09R WCI 29 Glendive LGT RAIN 38 36 92 N21 30.05R WCI 28 Jordan N/A 38 28 67 N15 30.09R WCI 29 Malta N/A 37 36 93 N10G17 30.12F WCI 30 Plentywood CLOUDY 36 34 93 N14 30.05S WCI 27 Poplar CLOUDY 39 34 81 N7G13 30.07R WCI 34 Scobey CLOUDY 36 36 100 N20 30.06R WCI 25 Wolf Point CLOUDY 39 32 76 N13 30.09R WCI 31 $$ MTZ028>42-056>058-181600- Southcentral and southeast Montana CITY SKY/WX TMP DP RH WIND PRES REMARKS Baker CLOUDY 37 35 92 NW13 30.03 WCI 29 Big Timber PTSUNNY 37 25 60 CALM 30.11S Billings CLOUDY 39 28 64 N14 30.10R WCI 31 Forsyth CLOUDY 40 33 76 N10 30.09R WCI 33 Hardin CLOUDY 39 32 75 NW14 30.11R WCI 31Harlowton LGT RAIN 36 30 80 E17 30.06F WCI 25 Laurel CLOUDY 37 28 70 CALM 30.12R Livingston CLOUDY 36 26 67 NW9 30.10R WCI 29 Miles City CLOUDY 40 31 70 NW17 30.08R WCI 31 $$ Regional Reports...Dakotas/MN CITY SKY/WX TMP DP RH WIND PRES REMARKS Williston CLOUDY 36 34 92 N13 30.03R WCI 27 Minot CLOUDY 37 36 96 N12 30.00R FOG WCI 29 Dickinson CLOUDY 40 40 100 NE9 29.97R WCI 34 Beach N/A 39 39 100 NW12 30.02R WCI 32 Bowman CLOUDY 37 37 100 NW13 29.99S WCI 29 Crosby PTSUNNY 36 36 100 N10 30.05S WCI 28 Glen Ullin CLOUDY 41 37 87 N16 29.98S Hettinger CLOUDY 42 38 85 N12 29.98S Tioga CLOUDY 37 37 100 N13 30.02F WCI 29 Watford City CLOUDY 39 39 100 NE10 30.03R WCI 32 Bismarck CLOUDY 42 37 82 NW9 29.98S Grand Forks CLOUDY 43 42 97 N21G28 29.87R Fargo CLOUDY 44 43 96 N16 29.84R Buffalo SD N/A 39 32 76 NW22G35 29.97S WCI 29 Rapid City LGT RAIN 42 40 92 NW25G35 29.95R Intl Falls CLOUDY 45 42 89 NE8 29.79R Duluth DRZL/FOG 45 44 97 N8 29.73S VSB 3/4 Minneapolis CLOUDY 63 58 83 SE5 29.70R $$ Regional Reports...WY/CO/ID/WA/OR CITY SKY/WX TMP DP RH WIND PRES REMARKS Buffalo WY LGT SNOW 32 30 92 N23G33 30.00S FOG WCI 19 Cody CLOUDY 34 25 69 N20G25 30.08R WCI 23 Gillette LGT SNOW 34 32 92 N18 30.00S FOG WCI 23 Powell PTSUNNY 34 21 60 NW21 30.05S WCI 22 Sheridan MIX PCPN 35 34 96 NW15 30.07R WCI 25 Yellowstone La N/A 28 14 55 VRB5 30.00R WCI 23 Boise SUNNY 50 27 40 NW15 30.08S Couer d'Alene CLOUDY 46 42 86 E3 30.17S Idaho Falls PTSUNNY 42 19 39 N25G35 29.98S Salmon SUNNY 44 24 45 VRB6 30.13F Spokane PTSUNNY 45 41 86 NE5 30.17R Seattle PTSUNNY 49 45 86 CALM 30.26R Portland PTSUNNY 52 45 77 CALM 30.27S $$ Other Reports CITY SKY/WX TMP DP RH WIND PRES REMARKS Atlanta MOSUNNY 77 66 68 S7 30.28S Anchorage PTSUNNY 43 34 70 SE14G24 29.79R Boston MOSUNNY 65 49 56 E15 30.23 Chicago CLOUDY 76 65 68 S13G28 29.84S Fairbanks PTSUNNY 43 30 61 CALM 29.68R Great Falls MOSUNNY 40 33 76 W6 30.15S WCI 36 Houston CLOUDY 82 73 74 S14G24 29.94R Las Vegas NV SUNNY 61 21 21 N16G28 29.94R Phoenix AZ MOSUNNY 71 49 45 VRB3 29.76R Salt Lake City PTSUNNY 44 29 55 NW16 29.89R San Diego PTSUNNY 63 52 67 VRB3 29.89R San Francisco SUNNY 66 41 40 N18 29.93R Washington Dul MOSUNNY 86 66 51 S6 30.18F $$ Regional Reports...Alberta CITY SKY/WX TMP DP RH WIND PRES REMARKS Calgary MOSUNNY 43 32 65 SE5 30.09SFort McMurray SUNNY 45 25 45 NE6 30.06F High Level MOSUNNY 48 27 43 SE9 29.94F Lethbridge PTSUNNY 45 32 61 SE8 30.12S Medicine Hat MOSUNNY 43 34 70 W7 30.16R Pincher Creek CLOUDY 41 34 75 W5 30.10S Fort Smith NWT MOSUNNY 41 16 36 SE14 30.07F $$ Regional Reports...Saskatchewan CITY SKY/WX TMP DP RH WIND PRES REMARKS Estevan LGT RAIN 36 36 100 N9 30.05R WCI 29 Prince Albert PTSUNNY 43 28 56 E8 30.16S Regina FLURRIES 36 34 93 N9 30.11R WCI 29 Saskatoon PTSUNNY 39 36 87 VRB5 30.15R WCI 36 Swift Current CLOUDY 32 30 93 NW8 30.14R WCI 25 $$