Idaho Weather
Observed at Boise (the largest city by population in Idaho, used as a state-wide proxy). For per-city forecasts, see the city grid below.
Climate at a glance
Idaho covers two distinct climate zones across 236 cities and towns. Predominantly cold semi-arid (55% of cities), with warm-summer Mediterranean pockets (45%).
The state spans roughly 6.7° of latitude (42.0° N to 48.7° N), from Franklin in the south to Moyie Springs in the north. Boise is the largest city by population.
| Zone | Cities | % |
|---|---|---|
| cold semi-arid | 130 | 55.1% |
| warm-summer Mediterranean | 106 | 44.9% |
Microseason · August 1–5 · Mountain West
Summer heat breaks with monsoon
Late summer monsoon surge; southern reaches drench under Gulf moisture; northern peaks cool rapidly as monsoon remnants push north.
Read this microseason across nine climate regions → · See all 72 microseasons
Microseason content for Idaho is drawn from the Mountain West corpus (100% of the state's cities sit in this region).
Live wind & temperature across Idaho
All cities in Idaho
- Boise448,305
- Nampa201,956
- Coeur d'Alene131,592
- Meridian130,138
- Idaho Falls111,137
- Pocatello72,963
- Caldwell66,516
- Twin Falls54,164
- Post Falls43,391
- Rexburg40,543
- Lewiston34,651
- Eagle32,855
- Kuna27,158
- Moscow26,286
- Ammon19,064
- Mountain Home16,493
- Hayden16,338
- Chubbuck16,126
- Star14,745
- Jerome12,930
- Blackfoot12,782
- Garden City12,654
- Burley11,958
- Rathdrum10,874
- Middleton10,649
- Hailey9,665
- Sandpoint9,637
- Payette8,536
- Emmett8,275
- Fruitland6,663
- Rupert6,190
- Weiser5,935
- Preston5,928
- Rigby5,404
- Kimberly5,111
- Shelley5,092
- American Falls4,712
- Buhl4,673
- Lincoln4,002
- McCall3,946
- St. Anthony3,911
- Gooding3,778
- Heyburn3,693
- Ketchum3,594
- Grangeville3,515
- Hidden Springs3,378
- Orofino3,260
- Mountain Home AFB3,219
- Salmon3,203
- Soda Springs3,158
- Homedale3,069
- Victor3,067
- Iona2,984
- Wendell2,981
- Filer2,925
- Driggs2,925
- St. Maries2,915
- Montpelier2,694
- Bonners Ferry2,669
- Fort Hall2,654
- Malad City2,601
- Bellevue2,588
- Aberdeen2,564
- Dalton Gardens2,496
- Kellogg2,307
- Sugar City2,122
- Pinehurst2,120
- Wilder2,074
- Spirit Lake1,972
- Parma1,928
- Shoshone1,911
- New Plymouth1,794
- Priest River1,778
- Osburn1,620
- Ucon1,606
- Paul1,586
- Tyhee1,568
- Ponderay1,534
- Greenleaf1,482
- Sun Valley1,460
- Glenns Ferry1,438
- Groveland1,422
- Ashton1,417
- Moyie Springs1,378
- Grace1,349
- Moreland1,326
- Marsing1,306
- Hagerman1,276
- Genesee1,265
- Hansen1,225
- Robie Creek1,213
- Carey1,196
- Plummer1,162
- Cottonwood1,131
- Cascade1,118
- Kamiah1,084
- Ririe1,079
- Franklin1,034
- Wallace1,027
- Kootenai1,022
- Lapwai1,021
- Clark Fork990
- Hazelton977
- Troy960
- Inkom936
- Hauser932
- Potlatch922
- McCammon909
- Mullan890
- Teton877
- Menan876
- Council871
- Riverside867
- Challis854
- Arco850
- Hayden Lake834
- Oakley830
- Downey803
- Dover792
- Clifton788
- Athol777
- Horseshoe Bend758
- Georgetown739
- Kooskia687
- Juliaetta672
- Smelterville668
- Silverton652
- Blanchard651
- Melba617
- Roberts609
- Parker607
- Mackay602
- Avimor586
- Richfield586
- Dubois585
- Idaho City581
- Notus573
- Weston569
- Basalt569
- Paris562
- Arbon Valley562
- Newdale525
- Nezperce522
- Craigmont509
- Dayton500
- Fairfield499
- Rockford492
- Mud Lake491
- Declo477
- Grand View472
- Deary458
- Lewisville453
- Garden Valley438
- Firth429
- Oldtown428
- Tetonia426
- Eden421
- Dietrich421
- New Meadows411
- Culdesac411
- Laclede406
- Albion376
- Pierce360
- Arimo351
- Midvale347
- Hollister347
- Malta346
- Rockford Bay336
- Kendrick327
- Cambridge324
- Weippe320
- Stanley319
- Hammett319
- Winchester302
- Gannett284
- Wardner281
- Swan Valley281
- East Hope265
- Riggins263
- Onaway263
- Bloomington255
- Bancroft250
- Irwin236
- Worley230
- Bliss229
- Rockland228
- Moore228
- Lava Hot Springs218
- Crouch214
- Huetter212
- Fernan Lake Village212
- Elk City202
- Donnelly195
- Peck194
- Harrison190
- Castleford183
- Minidoka179
- Island Park170
- Murphy170
- Stites165
- Sweetwater163
- Ferdinand162
- Acequia153
- St. Charles145
- Leadore135
- De Smet135
- Murtaugh129
- Elk River124
- Conkling Park123
- Hope112
- Letha109
- Bovill107
- Butte City95
- Bennington92
- Parkline91
- Bruneau82
- Tensed71
- Reubens68
- Smiths Ferry66
- Hamer59
- White Bird57
- Lost River55
- Oxford49
- Lowman46
- Placerville30
- Viola30
- Princeton25
- Coolin24
- Spencer19
- Yellow Pine17
- State Line9
- Drummond3
- Warm River0
- Clayton0
- Banks0
- Fernwood0